DE3809154C1 - - Google Patents
Info
- Publication number
 - DE3809154C1 DE3809154C1 DE3809154A DE3809154A DE3809154C1 DE 3809154 C1 DE3809154 C1 DE 3809154C1 DE 3809154 A DE3809154 A DE 3809154A DE 3809154 A DE3809154 A DE 3809154A DE 3809154 C1 DE3809154 C1 DE 3809154C1
 - Authority
 - DE
 - Germany
 - Prior art keywords
 - sensor element
 - pump electrode
 - element according
 - diffusion
 - electrode
 - 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.)
 - Expired
 
Links
Classifications
- 
        
- G—PHYSICS
 - G01—MEASURING; TESTING
 - G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
 - G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
 - G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
 - G01N27/416—Systems
 
 - 
        
- G—PHYSICS
 - G01—MEASURING; TESTING
 - G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
 - G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
 
 - 
        
- G—PHYSICS
 - G01—MEASURING; TESTING
 - G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
 - G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
 - G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
 - G01N27/403—Cells and electrode assemblies
 - G01N27/406—Cells and probes with solid electrolytes
 - G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
 - G01N27/4071—Cells and probes with solid electrolytes for investigating or analysing gases using sensor elements of laminated structure
 
 - 
        
- G—PHYSICS
 - G01—MEASURING; TESTING
 - G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
 - G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
 - G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
 - G01N27/403—Cells and electrode assemblies
 - G01N27/406—Cells and probes with solid electrolytes
 - G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
 - G01N27/4071—Cells and probes with solid electrolytes for investigating or analysing gases using sensor elements of laminated structure
 - G01N27/4072—Cells and probes with solid electrolytes for investigating or analysing gases using sensor elements of laminated structure characterized by the diffusion barrier
 
 
Landscapes
- Chemical & Material Sciences (AREA)
 - Life Sciences & Earth Sciences (AREA)
 - Health & Medical Sciences (AREA)
 - Physics & Mathematics (AREA)
 - Chemical Kinetics & Catalysis (AREA)
 - Electrochemistry (AREA)
 - Analytical Chemistry (AREA)
 - Biochemistry (AREA)
 - General Health & Medical Sciences (AREA)
 - General Physics & Mathematics (AREA)
 - Immunology (AREA)
 - Pathology (AREA)
 - Molecular Biology (AREA)
 - Measuring Oxygen Concentration In Cells (AREA)
 - Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
 
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title | 
|---|---|---|---|
| DE3809154A DE3809154C1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1988-03-18 | 1988-03-18 | |
| EP89902373A EP0406252B1 (de) | 1988-03-18 | 1989-02-23 | SENSORELEMENT FÜR GRENZSTROMSENSOREN ZUR BESTIMMUNG DES $g(l)-WERTES VON GASGEMISCHEN | 
| KR1019890702144A KR0148683B1 (ko) | 1988-03-18 | 1989-02-23 | 제한 전류 센서용 센서 소자 | 
| PCT/DE1989/000102 WO1989008840A1 (en) | 1988-03-18 | 1989-02-23 | ELEMENT FOR LIMIT-CURRENT SENSORS FOR DETERMINING THE lambda VALUE OF A GAS MIXTURE | 
| US07/566,376 US5137615A (en) | 1988-03-18 | 1989-02-23 | Sensor element for limiting current sensors for determination of the λ value of gas mixtures | 
| DE8989902373T DE58904290D1 (de) | 1988-03-18 | 1989-02-23 | Sensorelement fuer grenzstromsensoren zur bestimmung des -g(l)-wertes von gasgemischen. | 
| AU30618/89A AU613453B2 (en) | 1988-03-18 | 1989-02-23 | Element for limit-current sensors for determining the lamda value of a gas mixture | 
| JP1502174A JP2654212B2 (ja) | 1988-03-18 | 1989-02-23 | ガス混合気のガス成分を測定するセンサ素子 | 
| ES8900967A ES2010896A6 (es) | 1988-03-18 | 1989-03-16 | Elemento sensorial para sensores de corriente limite para determinar el valor * de mezclas de gas. | 
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title | 
|---|---|---|---|
| DE3809154A DE3809154C1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1988-03-18 | 1988-03-18 | 
Publications (1)
| Publication Number | Publication Date | 
|---|---|
| DE3809154C1 true DE3809154C1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1988-12-08 | 
Family
ID=6350114
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date | 
|---|---|---|---|
| DE3809154A Expired DE3809154C1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1988-03-18 | 1988-03-18 | |
| DE8989902373T Expired - Fee Related DE58904290D1 (de) | 1988-03-18 | 1989-02-23 | Sensorelement fuer grenzstromsensoren zur bestimmung des -g(l)-wertes von gasgemischen. | 
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date | 
|---|---|---|---|
| DE8989902373T Expired - Fee Related DE58904290D1 (de) | 1988-03-18 | 1989-02-23 | Sensorelement fuer grenzstromsensoren zur bestimmung des -g(l)-wertes von gasgemischen. | 
Country Status (8)
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| WO1990006506A1 (de) * | 1988-12-10 | 1990-06-14 | Robert Bosch Gmbh | SENSORELEMENT FÜR GRENZSTROMSENSOREN ZUR BESTIMMUNG DES μ-WERTES VON GASGEMISCHEN | 
| WO1990010862A1 (de) * | 1989-03-15 | 1990-09-20 | Robert Bosch Gmbh | SENSORELEMENT FÜR GRENZSTROMSENSOREN ZUR BESTIMMUNG DES μ-WERTES VON GASGEMISCHEN | 
| WO1992007252A1 (de) * | 1990-10-12 | 1992-04-30 | Robert Bosch Gmbh | SENSORELEMENT FÜR GRENZSTROMSENSOREN ZUR BESTIMMUNG DES μ-WERTES VON GASGEMISCHEN | 
| WO2007051719A1 (de) * | 2005-11-03 | 2007-05-10 | Robert Bosch Gmbh | Festelektrolyt gassensorelement, enthaltend eine pumpzelle und einen referenzgaskanal | 
| US7270731B2 (en) | 2000-07-12 | 2007-09-18 | Robert Bosch Gmbh | Cermet electrodes containing platinum for the electrochemical reduction of oxygen | 
| DE102006062056A1 (de) | 2006-12-29 | 2008-07-03 | Robert Bosch Gmbh | Sensorelement mit unterdrückter Fettgasreaktion | 
| DE102007049713A1 (de) | 2006-12-29 | 2008-07-03 | Robert Bosch Gmbh | Sensorelement zur Messung einer Gasgemischzusammensetzung | 
| DE102007049716A1 (de) | 2006-12-29 | 2008-07-03 | Robert Bosch Gmbh | Gassensor mit gasdicht abgeschirmtem Hohlraum | 
| DE102007054391A1 (de) | 2007-11-14 | 2009-05-20 | Robert Bosch Gmbh | Gassensor mit zeitlich variierendem Referenzpotential | 
| DE102007061947A1 (de) | 2007-12-21 | 2009-06-25 | Robert Bosch Gmbh | Schneller Breitband-Abgassensor | 
| EP2075576A2 (de) | 2007-12-27 | 2009-07-01 | Robert Bosch Gmbh | Sensorelement mit verbesserter Vergiftungsresistenz | 
| DE102007062800A1 (de) | 2007-12-27 | 2009-07-02 | Robert Bosch Gmbh | Verfahren zur Bestimmung einer Gaszusammensetzung in einem Messgasraum | 
| DE102009028755A1 (de) * | 2009-08-20 | 2011-06-09 | Robert Bosch Gmbh | Verfahren zur Herstellung einer porösen Cermet-Elektrode | 
| DE10020082B4 (de) * | 2000-04-22 | 2012-04-05 | Robert Bosch Gmbh | Elektrochemischer Meßfühler | 
| EP1101103B1 (de) * | 1998-07-30 | 2015-09-09 | Robert Bosch Gmbh | Abgassonde, bei der die den heizer vom festelektrolyten trennende isolationsschicht durch sintern eines mit porenbildner versetzten al2o3-haltigen materials gebildet wird | 
| DE102009026418B4 (de) | 2009-05-22 | 2023-07-13 | Robert Bosch Gmbh | Konditionierung eines Sensorelements in einem Brennerprüferstand bei mindestens 1000°C und Konditionierungsstrom | 
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| DE3941837C2 (de) * | 1989-12-19 | 1994-01-13 | Bosch Gmbh Robert | Widerstandsmeßfühler zur Erfassung des Sauerstoffgehaltes in Gasgemischen und Verfahren zu seiner Herstellung | 
| DE4231966A1 (de) * | 1992-09-24 | 1994-03-31 | Bosch Gmbh Robert | Planare polarograhische Sonde zur Bestimmung des Lambda-Wertes von Gasgemischen | 
| DE4238688A1 (de) * | 1992-11-17 | 1994-05-19 | Bosch Gmbh Robert | Gesinterter Festelektrolyt mit hoher Sauerstoffionenleitfähigkeit | 
| JP3314426B2 (ja) * | 1992-12-25 | 2002-08-12 | 株式会社デンソー | 酸素センサ | 
| BR9709755A (pt) * | 1996-04-30 | 1999-08-10 | Unversity Of California | Sensor de gás de estado sólido | 
| DE59712916D1 (de) * | 1996-11-06 | 2008-03-20 | Bosch Gmbh Robert | Elektrochemischer messfühler | 
| US5887240A (en) * | 1998-05-11 | 1999-03-23 | General Motors Corporation | Method of manufacturing a platinum electrode | 
| DE19857471A1 (de) * | 1998-12-14 | 2000-06-15 | Bosch Gmbh Robert | Sensorelement für Grenzstromsonden zur Bestimmung des Lambda-Wertes von Gasgemischen und Verfahren zu dessen Herstellung | 
| DE10121889C2 (de) * | 2001-05-05 | 2003-07-24 | Bosch Gmbh Robert | Sensorelement | 
| DE10122271B4 (de) * | 2001-05-08 | 2006-06-29 | Robert Bosch Gmbh | Sensorelemente | 
| DE10146545A1 (de) * | 2001-09-21 | 2003-04-10 | Merck Patent Gmbh | Mikrokomponente | 
| JP4416551B2 (ja) * | 2004-03-29 | 2010-02-17 | 日本碍子株式会社 | 多孔質電極及びそれを用いてなる電気化学的セル並びにNOxセンサ素子 | 
| EP1605255A1 (en) * | 2004-06-10 | 2005-12-14 | Hitachi, Ltd. | Oxygen-concentration detecting element and method of producing same | 
| DE102005006501A1 (de) * | 2005-02-14 | 2006-08-24 | Robert Bosch Gmbh | Gasmessfühler | 
| US20070245803A1 (en) * | 2006-02-23 | 2007-10-25 | Tan Siong S | Oxygen sensor with a protective layer | 
| JP4817083B2 (ja) * | 2009-03-27 | 2011-11-16 | 日本特殊陶業株式会社 | ガスセンサ | 
| DE102011086144A1 (de) * | 2011-11-11 | 2013-05-16 | Robert Bosch Gmbh | Verfahren zur Korrektur von Messwerten eines Sensorelements | 
| JP5945113B2 (ja) * | 2011-11-11 | 2016-07-05 | 株式会社デンソー | ガスセンサ用電極、及びガスセンサ素子 | 
| JP5835343B2 (ja) * | 2011-11-24 | 2015-12-24 | トヨタ自動車株式会社 | 空燃比検出装置及び空燃比検出方法 | 
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| DE2852638A1 (de) * | 1978-12-06 | 1980-06-19 | Bosch Gmbh Robert | Verfahren zur herstellung von cermetelektroden fuer gassensoren | 
| DE2913633A1 (de) * | 1979-04-05 | 1980-10-16 | Bosch Gmbh Robert | Elektrochemischer messfuehler fuer die bestimmung des sauerstoffgehaltes in gasen, insbesondere in abgasen von verbrennungsmotoren sowie verfahren zur herstellung desselben | 
| EP0142993A1 (en) * | 1983-11-18 | 1985-05-29 | Ngk Insulators, Ltd. | Electrochemical device | 
| DE3543759A1 (de) * | 1984-12-11 | 1986-07-10 | Mitsubishi Electric Corp | Luft/kraftstoff-verhaeltnisdetektor | 
| EP0188900A2 (en) * | 1984-12-20 | 1986-07-30 | Ngk Insulators, Ltd. | Electrochemical device | 
| EP0194082A1 (en) * | 1985-02-23 | 1986-09-10 | Ngk Insulators, Ltd. | Method of determining concentration of a component in gases and electrochemical device suitable for practicing the method | 
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| JPS61195338A (ja) * | 1985-02-25 | 1986-08-29 | Ngk Spark Plug Co Ltd | 空燃比センサ− | 
| JPH065222B2 (ja) * | 1985-05-09 | 1994-01-19 | 日本碍子株式会社 | 電気化学的素子 | 
| JPH0664009B2 (ja) * | 1986-03-28 | 1994-08-22 | 日本碍子株式会社 | ガスセンサ−素子 | 
| JPS62238455A (ja) * | 1986-04-09 | 1987-10-19 | Ngk Insulators Ltd | 酸素分析方法及び装置 | 
| JPS6321549A (ja) * | 1986-07-15 | 1988-01-29 | Ngk Insulators Ltd | 限界電流測定回路 | 
- 
        1988
        
- 1988-03-18 DE DE3809154A patent/DE3809154C1/de not_active Expired
 
 - 
        1989
        
- 1989-02-23 DE DE8989902373T patent/DE58904290D1/de not_active Expired - Fee Related
 - 1989-02-23 EP EP89902373A patent/EP0406252B1/de not_active Expired - Lifetime
 - 1989-02-23 AU AU30618/89A patent/AU613453B2/en not_active Ceased
 - 1989-02-23 KR KR1019890702144A patent/KR0148683B1/ko not_active Expired - Fee Related
 - 1989-02-23 JP JP1502174A patent/JP2654212B2/ja not_active Expired - Fee Related
 - 1989-02-23 US US07/566,376 patent/US5137615A/en not_active Expired - Fee Related
 - 1989-02-23 WO PCT/DE1989/000102 patent/WO1989008840A1/de active IP Right Grant
 - 1989-03-16 ES ES8900967A patent/ES2010896A6/es not_active Expired
 
 
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| DE2852638A1 (de) * | 1978-12-06 | 1980-06-19 | Bosch Gmbh Robert | Verfahren zur herstellung von cermetelektroden fuer gassensoren | 
| DE2913633A1 (de) * | 1979-04-05 | 1980-10-16 | Bosch Gmbh Robert | Elektrochemischer messfuehler fuer die bestimmung des sauerstoffgehaltes in gasen, insbesondere in abgasen von verbrennungsmotoren sowie verfahren zur herstellung desselben | 
| EP0142993A1 (en) * | 1983-11-18 | 1985-05-29 | Ngk Insulators, Ltd. | Electrochemical device | 
| DE3543759A1 (de) * | 1984-12-11 | 1986-07-10 | Mitsubishi Electric Corp | Luft/kraftstoff-verhaeltnisdetektor | 
| EP0188900A2 (en) * | 1984-12-20 | 1986-07-30 | Ngk Insulators, Ltd. | Electrochemical device | 
| EP0194082A1 (en) * | 1985-02-23 | 1986-09-10 | Ngk Insulators, Ltd. | Method of determining concentration of a component in gases and electrochemical device suitable for practicing the method | 
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| WO1990006506A1 (de) * | 1988-12-10 | 1990-06-14 | Robert Bosch Gmbh | SENSORELEMENT FÜR GRENZSTROMSENSOREN ZUR BESTIMMUNG DES μ-WERTES VON GASGEMISCHEN | 
| WO1990010862A1 (de) * | 1989-03-15 | 1990-09-20 | Robert Bosch Gmbh | SENSORELEMENT FÜR GRENZSTROMSENSOREN ZUR BESTIMMUNG DES μ-WERTES VON GASGEMISCHEN | 
| WO1992007252A1 (de) * | 1990-10-12 | 1992-04-30 | Robert Bosch Gmbh | SENSORELEMENT FÜR GRENZSTROMSENSOREN ZUR BESTIMMUNG DES μ-WERTES VON GASGEMISCHEN | 
| EP1101103B1 (de) * | 1998-07-30 | 2015-09-09 | Robert Bosch Gmbh | Abgassonde, bei der die den heizer vom festelektrolyten trennende isolationsschicht durch sintern eines mit porenbildner versetzten al2o3-haltigen materials gebildet wird | 
| DE10020082B4 (de) * | 2000-04-22 | 2012-04-05 | Robert Bosch Gmbh | Elektrochemischer Meßfühler | 
| US7270731B2 (en) | 2000-07-12 | 2007-09-18 | Robert Bosch Gmbh | Cermet electrodes containing platinum for the electrochemical reduction of oxygen | 
| WO2007051719A1 (de) * | 2005-11-03 | 2007-05-10 | Robert Bosch Gmbh | Festelektrolyt gassensorelement, enthaltend eine pumpzelle und einen referenzgaskanal | 
| DE102006062056A1 (de) | 2006-12-29 | 2008-07-03 | Robert Bosch Gmbh | Sensorelement mit unterdrückter Fettgasreaktion | 
| DE102007049713A1 (de) | 2006-12-29 | 2008-07-03 | Robert Bosch Gmbh | Sensorelement zur Messung einer Gasgemischzusammensetzung | 
| DE102007049716A1 (de) | 2006-12-29 | 2008-07-03 | Robert Bosch Gmbh | Gassensor mit gasdicht abgeschirmtem Hohlraum | 
| DE102007054391A1 (de) | 2007-11-14 | 2009-05-20 | Robert Bosch Gmbh | Gassensor mit zeitlich variierendem Referenzpotential | 
| DE102007061947A1 (de) | 2007-12-21 | 2009-06-25 | Robert Bosch Gmbh | Schneller Breitband-Abgassensor | 
| DE102007062800A1 (de) | 2007-12-27 | 2009-07-02 | Robert Bosch Gmbh | Verfahren zur Bestimmung einer Gaszusammensetzung in einem Messgasraum | 
| DE102007062733A1 (de) | 2007-12-27 | 2009-07-02 | Robert Bosch Gmbh | Sensorelement mit verbesserter Vergiftungsresistenz | 
| EP2075576A2 (de) | 2007-12-27 | 2009-07-01 | Robert Bosch Gmbh | Sensorelement mit verbesserter Vergiftungsresistenz | 
| DE102009026418B4 (de) | 2009-05-22 | 2023-07-13 | Robert Bosch Gmbh | Konditionierung eines Sensorelements in einem Brennerprüferstand bei mindestens 1000°C und Konditionierungsstrom | 
| DE102009028755A1 (de) * | 2009-08-20 | 2011-06-09 | Robert Bosch Gmbh | Verfahren zur Herstellung einer porösen Cermet-Elektrode | 
Also Published As
| Publication number | Publication date | 
|---|---|
| DE58904290D1 (de) | 1993-06-09 | 
| KR0148683B1 (ko) | 1998-08-17 | 
| EP0406252A1 (de) | 1991-01-09 | 
| AU3061889A (en) | 1989-10-05 | 
| WO1989008840A1 (en) | 1989-09-21 | 
| US5137615A (en) | 1992-08-11 | 
| JP2654212B2 (ja) | 1997-09-17 | 
| AU613453B2 (en) | 1991-08-01 | 
| EP0406252B1 (de) | 1993-05-05 | 
| JPH03503084A (ja) | 1991-07-11 | 
| KR900700878A (ko) | 1990-08-17 | 
| ES2010896A6 (es) | 1989-12-01 | 
Similar Documents
| Publication | Publication Date | Title | 
|---|---|---|
| DE3809154C1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
| DE3728618C1 (de) | Sensorelement fuer Grenzstromsensoren zur Bestimmung des lambda-Wertes von Gasgemischen | |
| EP0552174B1 (de) | Sensorelement für grenzstromsensoren zur bestimmung des lambda-wertes von gasgemischen | |
| DE3811713C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
| EP0449846B1 (de) | Sensorelement für grenzstromsensoren zur bestimmung des lambda-wertes von gasgemischen | |
| DE3733193C1 (de) | NTC-Temperaturfuehler sowie Verfahren zur Herstellung von NTC-Temperaturfuehlerelementen | |
| EP0613555B1 (de) | Planare polarographische sonde zur bestimmung des lambda-wertes von gasgemischen | |
| DE69030098T2 (de) | Gassensor mit festem Elektrolyt und Verfahren zum Messen der Konzentration des zu detektierenden Gases in einer Gasmischung | |
| DE3876013T2 (de) | Elektrochemische elemente. | |
| EP0519933B1 (de) | Sauerstoffsensor zur bestimmung des lambda-wertes | |
| DE3834987C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
| DE3728289C1 (de) | Nach dem polarographischen Messprinzip arbeitende Grenzstromsonde | |
| EP0462989B1 (de) | SENSORELEMENT FÜR GRENZSTROMSENSOREN ZUR BESTIMMUNG DES $g(l)-WERTES VON GASGEMISCHEN | |
| DE3833541C1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
| DE19817012A1 (de) | Sensorelement für Grenzstromsonden zur Bestimmung des Lambda-Wertes von Gasgemischen und Verfahren zu dessen Kalibrierung | |
| DE3942773A1 (de) | Plaettchenfoermige breitbandsonde fuer die bestimmung der sauerstoffkonzentration in abgasen | |
| DE19906307A1 (de) | Verfahren zur Herstellung von Cermet-Elektroden für Meßfühler | 
Legal Events
| Date | Code | Title | Description | 
|---|---|---|---|
| 8100 | Publication of patent without earlier publication of application | ||
| D1 | Grant (no unexamined application published) patent law 81 | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |