CN101582558A - Security protection and control device of medium/high power solid state laser module - Google Patents
Security protection and control device of medium/high power solid state laser module Download PDFInfo
- Publication number
- CN101582558A CN101582558A CNA2009100868511A CN200910086851A CN101582558A CN 101582558 A CN101582558 A CN 101582558A CN A2009100868511 A CNA2009100868511 A CN A2009100868511A CN 200910086851 A CN200910086851 A CN 200910086851A CN 101582558 A CN101582558 A CN 101582558A
- Authority
- CN
- China
- Prior art keywords
- laser module
- state laser
- solid
- temperature
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention provides a security protection and control device of a solid state laser module, comprising a temperature detecting and comparing unit; at least part of the temperature detecting and comparing unit is in hot connection with the solid state laser module, is used for detecting the temperature of the solid state laser module, compares the temperature with active preset temperature value and outputs the comparison result as the first output; an active action unit is connected in a power supply circuit of the solid state laser module in series and is electrically connected with the temperature detecting and comparing unit so as to receive the first output of the temperature detecting and comparing unit; when the temperature detected by the temperature detecting and comparing unit is not higher than the active preset temperature value, the temperature detecting and comparing unit controls the current in the active action unit to conduct, or sends out alarm and controls the current in the active action unit to cut off. By adopting current cut-off protection, the device protects the solid state laser module to the greatest extent and improves the security of the solid state laser module, thus improving the use security and service life of the medium/high power solid state laser module.
Description
Technical field
The present invention relates to security protection and control device, particularly the security protection and control device of middle high power solid state laser module.
Background technology
In recent years, (Diode Pumped SolidState Laser, DPSSL) development is swift and violent based on all solid state laser of laser diode-pumped technology.In the factor that influences the solid-state laser module output stability, the adverse effect that thermal effect is brought is the most remarkable.Especially along with improving constantly of laser power and dwindling of volume, the design of heat protection seems particularly important.According to solid-state laser module maintenance statistics for many years, 80% reason is arranged is overheated to the high power solid state laser module in the damage.We know, in high power solid state laser module when work type of cooling mainly be water-cooled, misoperation, water cooling unit in use are out of order the user in use, the long-play incrustation scale is blocked up, water route obstructions, water route vent plug, water route are broken, power failure, power supply alarming response speed are slow or the like all can make overheated, the injured even damage of solid-state laser module.
The high power solid state laser module mainly adopts the passive protection pattern at present, and temperature protection control device wherein adopts about one 40 ℃ closed type temperature switch usually.Though the design of such protected mode is simple, and a lot of shortcomings are arranged, and impracticable.
At first; the operating current of solid-state laser module is bigger; the volume of temperature switch itself is just bigger; so can not increase its operating current by increasing volume, temperature switch can not be connected with the operating current of solid-state laser module, can only adopt the passive protection pattern; by controlling little current signal; actuating signal is passed to the driving power of solid-state laser module, and power supply receives that signal just reduces or stop electric current output to solid-state laser module, thus the protection solid-state laser module.This passive protection pattern also depends on the reliability of transmission signal line and driving power, in case there is a link to be out of order in them, just may cause solid-state laser module impaired.
In addition, temperature switch itself also has its shortcoming.The protection action mechanism of temperature switch is mechanical contact-type, and reaction is slow; Temperature switch is when variations in temperature is very fast, and temperature lag is big.Simultaneously we can not to select for use the temperature switch of low temperature operating value to remedy such temperature lag again poor because the temperature switch of low temperature operating value can influence the operate as normal of solid-state laser module; Temperature switch be one to temperature unusual Sensitive Apparatus not, its temperature discreteness is bigger.With 40 ℃ closed type temperature switch of a collection of buying, 35 ℃ of having have just moved, and 45 ℃ that have also do not have action.
From the above, the protection controlling Design of solid-state laser module requires the security protection and control device accurate, quick, safe and reliable to temperature detection.
Summary of the invention
Technical problem to be solved by this invention is: for middle high power solid state laser module provides accurate, quick, safe and reliable safety protection control.
For achieving the above object, the invention provides a kind of security protection and control device of solid-state laser module, comprising:
The temperature detection comparing unit, it is used to detect the temperature of described solid-state laser module to small part and described solid-state laser module hot link, this temperature and active preset temperature value are compared, and the result that will compare exports and exports as first;
Described positive action units in series is connected in the current supply circuit of described solid-state laser module, and is electrically connected with described temperature detection comparing unit, to receive described first output of described temperature detection and comparing unit;
When the temperature that is detected when described temperature detection comparing unit is not higher than described active preset temperature value, described temperature detection comparing unit is controlled the current lead-through in the described positive action unit, turn-offs otherwise send the electric current of reporting to the police and controlling in the described positive action unit.
The security protection and control device of aforesaid solid-state laser module also comprises passive preset temperature value, and described passive preset temperature value is lower than described active preset temperature value; Described temperature compares and detecting unit can compare the temperature and the described passive preset temperature value of described solid-state laser module, and the result that will compare exports and exports as second.
The security protection and control device of aforesaid solid-state laser module; also comprise the passive protection unit; described passive protection units in series is between two electrodes of the hydraulic pressure protection port of solid-state laser module driving power; and be electrically connected with described temperature detection comparing unit; to receive described second output of described temperature detection and rating unit; when the temperature that records described solid-state laser module when described temperature detection comparing unit is not higher than described passive preset temperature value; described temperature detection comparing unit is controlled described passive protection cell conduction; turn-off otherwise control described passive protection unit, described hydraulic pressure protection port sends warning according to the signal that described passive protection unit turn-offs.
The security protection and control device of aforesaid solid-state laser module also comprises the warning locking in parallel with the positive action unit.
The security protection and control device of aforesaid solid-state laser module also comprises the integrated protection unit in parallel with described solid-state laser module.
The security protection and control device of aforesaid solid-state laser module, described temperature detection comparing unit comprises resistance bridge, comparator, described resistance bridge comprises forearm and postbrachium, forearm comprises first potentiometer and first fixed value resistance that is connected in series, and postbrachium comprises the thermistor and second fixed value resistance that is connected in series; Described thermistor and described solid-state laser module hot link, described comparator by more described forearm test point and the voltage between the test point of described postbrachium determine whether the temperature of described thermistor is higher than described preset temperature value.
The security protection and control device of aforesaid solid-state laser module, described positive action unit comprises electronic switch.
The security protection and control device of aforesaid solid-state laser module, described electronic switch are field effect transistor, and the drain electrode of described field effect transistor and source series are connected between the input electrode of the driving power of described solid-state laser module and described solid-state laser module.
Security protection and control device according to the present invention adopts active current cutting protection, protects solid-state laser module to the full extent, improves the fail safe of solid-state laser module.
Description of drawings
Fig. 1 is a structural principle schematic diagram of the present invention.
Fig. 2 is the schematic circuit according to the embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, the present invention is described in more detail below in conjunction with drawings and Examples.
With reference to figure 1, have: temperature detection comparing unit, temperature alarming unit (passive protection unit), positive action unit (initiatively protected location) and comprehensive safety protected location according to the security protection and control device that is used for solid-state laser module (laser module) of the embodiment of the invention.Thermistor Rt1 in the temperature detection comparing unit is fixed on the heater element of solid-state laser module, the temperature detection comparing unit links to each other with the positive action unit with the temperature alarming unit respectively, is used for carrying out passive protection or initiatively protection according to the temperature value that is detected; The temperature alarming unit links to each other with the driving power of solid-state laser module.
As shown in Figure 2, temperature detection comparing unit (among the figure 1. part) comprising: first resistance bridge (being formed by resistance R 3, resistance R 11 and thermistor Rt1, resistance R 13) and second resistance bridge (being formed by resistance R 4, resistance R 12 and thermistor Rt1, resistance R 13), comparator U3A, U3B (LM393).The forearm of first resistance bridge is formed by thermistor Rt1 and resistance R 13 series connection, the postbrachium of first resistance bridge is formed by resistance R 3 and R11 series connection, the test point of forearm (tie point of thermistor Rt1 and resistance R 13) links to each other with the positive input terminal (the 5th leg) of comparator (U3B), and the test point of postbrachium (tie point of resistance R 3 and R11) links to each other with the negative input end (the 6th leg) of comparator (U3B); The forearm of second resistance bridge is also formed by thermistor Rt1 and resistance R 13 series connection, postbrachium is formed by resistance R 4 and R12 series connection, the test point of forearm links to each other with the positive input terminal (the 3rd leg) of comparator (U3A), and the test point of postbrachium links to each other with the negative input end (the 2nd leg) of comparator (U3A).(among the figure 2. part) comprising in the positive action unit: pull-up resistor R6 (10K Ω), fet power pipe Q3 (70N06); Pull-up resistor R6 is connected between the grid (the 1st leg) of the power supply of protective circuit and fet power pipe Q3, and the drain electrode of fet power pipe Q3 and source series are on the current supply circuit of laser module.Comprehensive safety protected location (among the figure 3. part) comprising: backward diode D3 (1N5822), bleeder resistance R7 (510 Ω/2W), bleeder resistance C7 (1 μ F/63V); Backward diode D3, bleeder resistance R7, bleeder resistance C7 are connected in parallel on the input electrode two ends of laser module respectively, and the negative pole of backward diode D3 links to each other with the positive pole of laser module input electrode, and positive pole links to each other with the negative pole of laser module input electrode.Temperature alarming unit (passive protection unit) comprising: photoelectrical coupler U1 (P521), U2 (P521), triode Q1 (2N5401), Q4 (2N5401), Q2 (2N5551), starting capacitance C2 (1 μ F) etc.
In the said elements, have that 5 elements adopt straight cutting spare: thermistor Rt1 (NTC), fet power pipe Q3, backward diode D3, bleeder resistance R7, electric capacity C7 releases; Remaining element can be used the Surface Mount components and parts, makes a little PVB plate according to the solid-state laser module interior spatial structure and is placed in one.Thermistor Rt1, fet power pipe Q3 are connected with pcb board with lead, and three elements of comprehensive safety protected location (bleeder resistance R7, the electric capacity C7 that releases, backward diode D3) then can directly be welded on the electrode of solid-state laser module.In order accurately to detect the temperature on the solid-state laser module, requirement closely is fixed on thermistor Rt1 in heater members (bar bar) surface in the solid-state laser module or the aperture (can make a call to fixedly temperature-sensitive resistance R t1 of an aperture in the solid-state laser module blank space), also fills up slit between thermistor Rt1 and the solid-state laser module with heat-conducting silicone grease or heat-conducting glue.Fet power pipe Q3 can send a spot of heat at work, it need be fixed on the base of solid-state laser module, should good thermo-contact be arranged with base, also requires and the base electric insulation.
With reference to figure 2, introduce the operation principle of passive protection unit in the present embodiment (among the figure 4. part) below.Hydraulic pressure protection port J3 (the hydraulic pressure protection port of solid-state laser module driving power is specially at the protection of solid-state laser module heat) for the solid-state laser module driving power; when the driving power energising; tens milliamperes of electric currents of output in the leg (electrode) among the hydraulic pressure protection port J3; if this electric current can turn back to power supply hydraulic pressure protection another leg of port (electrode) again; think that the temperature of solid-state laser module is normal, otherwise think that occurrence temperature reports to the police.The output port J2 of solid-state laser module driving power stops the power supply to the input electrode J1 of solid-state laser module.When the driving power of solid-state laser module was worked, we supposed the 2--J3 of hydraulic pressure protection port J3
2Leg is being for just, from output current wherein.Electric current makes thyristor Q1 conducting through starting capacitance C2, and the electric current that the collector electrode of thyristor Q1 flows out makes thyristor Q2 conducting again, and the discrete thyristor of being made up of thyristor Q1, thyristor Q2 is just by starting capacitance C2 triggering and conducting like this.The electric current of thyristor is a direct current owing to flow through, and thyristor just can keep conducting state always, and this is the characteristic of thyristor.Electric current turns back to hydraulic pressure protection port J3 by thyristor
1, driving power thinks and do not report to the police, can operate as normal, otherwise driving power thinks and report to the police, and reduce or stop solid-state laser module being powered.
When the driving power of solid-state laser module is powered to solid-state laser module, because solid-state laser module is the diode load characteristic, the forward conduction voltage of the diode load of middle high power solid state laser module is generally greater than 10V, this voltage just in time provides power supply for control circuit, the driving voltage of solid-state laser module become after through diode D2 control circuit driving power VCC (for the solid-state laser module of operating voltage less than 10V, can external power supply or powered battery get final product).VCC makes solid-state laser module work through resistance R 6 conducting fet power pipe Q3.In the temperature detection comparing unit, R3, R11 and Rt1, R13 form first resistance bridge.R3 is a potentiometer, and the active temperature preset value can be set, and Rt1 is temperature sensor (a 10K Ω thermistor), detects the working temperature of solid-state laser module.When temperature raises, Rt1 resistance value step-down, if the resistance value of Rt1 during less than the R3 resistance value, the level height of the leg 6 level ratio legs 5 of comparator U3B among the figure, the 7th leg voltage of comparator U3B becomes 0V, makes the LED of photoelectrical coupler U1 luminous.The input stage work of photoelectrical coupler U1; emitter and base electrode that like this will short circuit thyristor Q1; thyristor Q1 ends; thyristor Q2 ends then; just there is not return current in 1 leg of hydraulic pressure protection port; the solid-state laser module driving power is reported to the police, stops the solid-state laser module power supply, thus the protection solid-state laser module.The passive protection of product before this one-level protection is compatible is with the electronic switch replacement mechanical switch of thyristor.Because the discrete thyristor in the circuit is restricted to sense of current, so design two discrete thyristor protection circuit, they will offer an explanation the trouble of the both positive and negative polarity of hydraulic pressure protection port just to the sense of current difference in the time of so just can avoiding line to install.
The control loop of passive protection unit is bigger, and different driving powers is also inconsistent to alarm time, output current turn-off time, and also there is very big danger in this for solid-state laser module.So the active protected location effect among the present invention is most important, with reference to figure 2.Initiatively in the protected location, R4, R12 and Rt1, R13 form second resistance bridge.R4 is a potentiometer, and passive temperature preset value can be set.Rt1, R13 form first resistive arm of resistance bridge, with first resistance bridge be shared, can simplify circuit like this and avoid secondary temperature detection error.If the passive protection unit is out of control, the driving power of solid-state laser module does not in time reduce the electric current output to solid-state laser module, and the working temperature of solid-state laser module also can rise, and the resistance of Rt1 also can descend.When the resistance of Rt1 during less than R4, the 1st leg voltage of comparator U3A becomes 0V, and fet power pipe Q3 is ended, and forces to turn-off the operating current of solid-state laser module, makes solid-state laser module no longer continue heating, thereby initiatively protects solid-state laser module.Safety protection control device is placed on the inside (with reference to figure 1) of solid-state laser module, and anti-extraneous intervention capacity is strong.
Initiatively the control loop of protected location is little, good reliability, and reaction fast (reaction time is less than 1 microsecond), electronic switch turn-offs, and can not produce impacts such as sparking, the logical impulse train of wave.Solid-state laser module for the different electric currents of different capacity, operating voltage according to solid-state laser module is selected different fet power pipe Q3 with operating current, when selecting fet power pipe Q3, note allowing the rated operational voltage of fet power pipe Q3 and operating current be twice than the operating voltage and the operating current of solid-state laser module, make fet power pipe Q3 more stable, work reliably.
Triode Q1 and Q2 in the passive protection unit have lock function, even if the back temperature that takes place to report to the police is recovered, triode Q1 and Q2 still are in off-state, can not recover automatically, need the driving power power-off restarting to recover.Initiatively diode D5, the diode D6 in the protected location constitutes the first warning locking and the second warning locking respectively.Diode D5 is used to lock the initiatively comparator U3A of protected location; diode D6 is used to lock the comparator U3B of passive protection unit; in case initiatively protected location or any one warning of passive protection unit just can lock warning, can reduce the solid-state laser module frequent impact like this.Recovering locking needs control board power supply VCC power-off restarting.
In Fig. 2, three elements of comprehensive safety protected location (backward diode D3, bleeder resistance R7, electric capacity C7 releases) can be directly connected on the electrode of solid-state laser module.Backward diode D3 in the comprehensive safety protected location is a Schottky diode, and characteristics such as forward voltage drop is low, reaction speed fast, the conducting electric current is big are arranged, and is to the solid-state laser module back clamping, absorbs the reverse voltage energy of solid-state laser module.It can protect the reverse voltage interference in the solid-state laser module current supply circuit, prevents that within a certain period of time the reversal connection of user's electrode from burning out the possibility of solid-state laser module.Bleeder resistance R7 in the comprehensive safety protected location, the electric capacity C7 that releases combination suppresses the voltage and current ripple interference in the solid-state laser module current supply circuit to a certain extent.Concerning the static interference of high pressure, high frequency, little electric current, the combination of big electric capacity, little resistance is connected in parallel on the two ends of solid-state laser module, makes the two ends of solid-state laser module become an equipotential system, so suppress solid-state laser module static interference to a certain extent.
Security protection and control device is simple in structure according to the present invention, and volume is little, can finish to be positioned among the solid-state laser module, and not increase the solid-state laser module volume, need not change solid-state laser module overall dimension.The present invention adopts accurate temperature negative thermo-sensitive resistance (NTC) little for the temperature sensor volume, and riding position is flexible; Detected temperatures is accurate, and reaction speed is fast, and temperature lag is little.In addition, the present invention is provided with and reports to the police from locking, prevents to report to the police from recovering, and reduces frequent the warning and impacts.
It should be noted last that above embodiment is only unrestricted in order to technical scheme of the present invention to be described.Although the present invention is had been described in detail with reference to embodiment, those of ordinary skill in the art is to be understood that, technical scheme of the present invention is made amendment or is equal to replacement, do not break away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (8)
1. the security protection and control device of a solid-state laser module is characterized in that, comprising:
The temperature detection comparing unit, it is used to detect the temperature of described solid-state laser module to small part and described solid-state laser module hot link, this temperature and active preset temperature value are compared, and the result that will compare exports and exports as first;
Described positive action units in series is connected in the current supply circuit of described solid-state laser module, and is electrically connected with described temperature detection comparing unit, to receive described first output of described temperature detection and comparing unit;
When the temperature that is detected when described temperature detection comparing unit is not higher than described active preset temperature value, described temperature detection comparing unit is controlled the current lead-through in the described positive action unit, turn-offs otherwise send the electric current of reporting to the police and controlling in the described positive action unit.
2. the security protection and control device of solid-state laser module as claimed in claim 1, it is characterized in that: also comprise passive preset temperature value, described passive preset temperature value is lower than described active preset temperature value; Described temperature compares and detecting unit can compare the temperature and the described passive preset temperature value of described solid-state laser module, and the result that will compare exports and exports as second.
3. the security protection and control device of solid-state laser module as claimed in claim 2; it is characterized in that: also comprise the passive protection unit; described passive protection units in series is between two electrodes of the hydraulic pressure protection port of solid-state laser module driving power; and be electrically connected with described temperature detection comparing unit; to receive described second output of described temperature detection and rating unit; when the temperature that records described solid-state laser module when described temperature detection comparing unit is not higher than described passive preset temperature value; described temperature detection comparing unit is controlled described passive protection cell conduction; turn-off otherwise control described passive protection unit, described hydraulic pressure protection port sends warning according to the signal that described passive protection unit turn-offs.
4. the security protection and control device of solid-state laser module as claimed in claim 1 is characterized in that, also comprises being used for the warning locking in parallel with the positive action unit.
5. the security protection and control device of solid-state laser module as claimed in claim 1 is characterized in that: also comprise the integrated protection unit in parallel with described solid-state laser module.
6. the security protection and control device of solid-state laser module as claimed in claim 1, it is characterized in that: described temperature detection comparing unit comprises resistance bridge, comparator, described resistance bridge comprises forearm and postbrachium, forearm comprises first potentiometer and first fixed value resistance that is connected in series, and postbrachium comprises the thermistor and second fixed value resistance that is connected in series; Described thermistor and described solid-state laser module hot link, described comparator by more described forearm test point and the voltage between the test point of described postbrachium determine whether the temperature of described thermistor is higher than described active preset temperature value.
7. the security protection and control device of solid-state laser module as claimed in claim 1, it is characterized in that: described positive action unit comprises electronic switch.
8. the security protection and control device of solid-state laser module as claimed in claim 7; it is characterized in that: described electronic switch is a field effect transistor, and the drain electrode of described field effect transistor and source series are connected between the input electrode of the driving power of described solid-state laser module and described solid-state laser module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100868511A CN101582558A (en) | 2009-06-08 | 2009-06-08 | Security protection and control device of medium/high power solid state laser module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100868511A CN101582558A (en) | 2009-06-08 | 2009-06-08 | Security protection and control device of medium/high power solid state laser module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101582558A true CN101582558A (en) | 2009-11-18 |
Family
ID=41364576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100868511A Pending CN101582558A (en) | 2009-06-08 | 2009-06-08 | Security protection and control device of medium/high power solid state laser module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101582558A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103731215A (en) * | 2013-11-15 | 2014-04-16 | 成都市宏山科技有限公司 | Optical line terminal with two-stage temperature monitoring |
| CN104836099A (en) * | 2015-05-19 | 2015-08-12 | 大族激光科技产业集团股份有限公司 | Optical fiber laser system and monitoring device thereof |
-
2009
- 2009-06-08 CN CNA2009100868511A patent/CN101582558A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103731215A (en) * | 2013-11-15 | 2014-04-16 | 成都市宏山科技有限公司 | Optical line terminal with two-stage temperature monitoring |
| CN104836099A (en) * | 2015-05-19 | 2015-08-12 | 大族激光科技产业集团股份有限公司 | Optical fiber laser system and monitoring device thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103208780A (en) | Direct current motor control circuit with heat protection function | |
| JP2008027826A (en) | Battery pack | |
| JPWO2010103590A1 (en) | Thermal switch | |
| CN102444989B (en) | Water system auxiliary electrical heating temperature control system and control method | |
| CN107968711B (en) | Thing networking signal reception terminal controlgear | |
| CN101582558A (en) | Security protection and control device of medium/high power solid state laser module | |
| CN107962280A (en) | Electric welding machine thermel protection device | |
| CN203326565U (en) | Direct current motor control circuit with heat protection function | |
| CN116660784A (en) | Low-side switch load short circuit detection and protection method | |
| CN113594494B (en) | Fuel cell heat dissipation device | |
| CN114204834A (en) | Grid drive protection circuit, system and vehicle-mounted inverter system | |
| CN100511072C (en) | Heating control device of ATM | |
| KR102272895B1 (en) | Electric cooker and its heating control circuit，Control method | |
| CN106655716A (en) | SiC-based water-cooled high-power braking unit | |
| JP3244589U (en) | More secure inverter filter circuit | |
| CN208094433U (en) | A kind of output shunting device of chain-type inverter power module | |
| CN205160051U (en) | Silicon controlled switch | |
| CN206332603U (en) | A kind of water-cooled high-power brake unit based on SiC | |
| CN113782396B (en) | circuit breaker system | |
| CN204144907U (en) | A kind of safety general control circuit | |
| CN218482775U (en) | Explosion-proof protection system of high-power IGBT module | |
| CN210246301U (en) | High-low resistance switchable resistor device | |
| US11145442B2 (en) | Externally controlled thermal trip device, method and application for varistors | |
| CN212137271U (en) | PTC protection circuit of solid-state relay | |
| CN220271762U (en) | Control drive circuit, fire control module and electrical equipment comprising same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091118 |