DE19957592A1 - Ölsystem, insbesondere Hydrauliksystem oder Schmierölsystem - Google Patents
Ölsystem, insbesondere Hydrauliksystem oder SchmierölsystemInfo
- Publication number
- DE19957592A1 DE19957592A1 DE19957592A DE19957592A DE19957592A1 DE 19957592 A1 DE19957592 A1 DE 19957592A1 DE 19957592 A DE19957592 A DE 19957592A DE 19957592 A DE19957592 A DE 19957592A DE 19957592 A1 DE19957592 A1 DE 19957592A1
- Authority
- DE
- Germany
- Prior art keywords
- oil
- sensor
- impurity content
- oil system
- light
- 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.)
- Withdrawn
Links
- 239000003921 oil Substances 0.000 title claims abstract description 150
- 239000010687 lubricating oil Substances 0.000 title claims abstract description 6
- 239000010729 system oil Substances 0.000 title claims description 3
- 239000012535 impurity Substances 0.000 claims abstract description 22
- 238000012544 monitoring process Methods 0.000 claims abstract description 9
- 230000002596 correlated effect Effects 0.000 claims abstract description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 11
- 239000006096 absorbing agent Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 2
- 239000010720 hydraulic oil Substances 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 59
- 230000005540 biological transmission Effects 0.000 description 9
- 238000003809 water extraction Methods 0.000 description 6
- 238000005406 washing Methods 0.000 description 5
- 238000011109 contamination Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 4
- 230000000875 corresponding effect Effects 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 229940000425 combination drug Drugs 0.000 description 1
- LYKJEJVAXSGWAJ-UHFFFAOYSA-N compactone Natural products CC1(C)CCCC2(C)C1CC(=O)C3(O)CC(C)(CCC23)C=C LYKJEJVAXSGWAJ-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N29/00—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
- G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
- G01N21/534—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke by measuring transmission alone, i.e. determining opacity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2250/00—Measuring
- F16N2250/34—Transparency; Light; Photo sensor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
- G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S210/00—Liquid purification or separation
- Y10S210/05—Coalescer
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Lubricants (AREA)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19957592A DE19957592A1 (de) | 1999-11-30 | 1999-11-30 | Ölsystem, insbesondere Hydrauliksystem oder Schmierölsystem |
| EP00989810A EP1234138B1 (de) | 1999-11-30 | 2000-11-29 | Ölsystem, insbesondere hydrauliksystem oder schmierölsystem |
| DE50004375T DE50004375D1 (de) | 1999-11-30 | 2000-11-29 | Ölsystem, insbesondere hydrauliksystem oder schmierölsystem |
| JP2001542132A JP2003515707A (ja) | 1999-11-30 | 2000-11-29 | 油システム、特に液圧システム又は潤滑油システム |
| PCT/DE2000/004234 WO2001040701A2 (de) | 1999-11-30 | 2000-11-29 | Ölsystem, insbesondere hydrauliksystem oder schmierölsystem |
| US10/148,122 US6746610B2 (en) | 1999-11-30 | 2000-11-29 | Oil system, in particular a hydraulic or lubricating oil system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19957592A DE19957592A1 (de) | 1999-11-30 | 1999-11-30 | Ölsystem, insbesondere Hydrauliksystem oder Schmierölsystem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE19957592A1 true DE19957592A1 (de) | 2001-06-07 |
Family
ID=7930853
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19957592A Withdrawn DE19957592A1 (de) | 1999-11-30 | 1999-11-30 | Ölsystem, insbesondere Hydrauliksystem oder Schmierölsystem |
| DE50004375T Expired - Lifetime DE50004375D1 (de) | 1999-11-30 | 2000-11-29 | Ölsystem, insbesondere hydrauliksystem oder schmierölsystem |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE50004375T Expired - Lifetime DE50004375D1 (de) | 1999-11-30 | 2000-11-29 | Ölsystem, insbesondere hydrauliksystem oder schmierölsystem |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6746610B2 (enExample) |
| EP (1) | EP1234138B1 (enExample) |
| JP (1) | JP2003515707A (enExample) |
| DE (2) | DE19957592A1 (enExample) |
| WO (1) | WO2001040701A2 (enExample) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10310380B3 (de) * | 2003-03-07 | 2004-10-14 | Carl Freudenberg Kg | Vorrichtung und Verfahren zur Messung des Ölverlustes oder der Leckrate an Dichtungen |
| DE102004007749A1 (de) * | 2004-02-18 | 2005-09-08 | Zf Friedrichshafen Ag | Vorrichtung und Verfahren zur Erkennung von Wasserdampf in Öl in einem Gehäuse, vorzugsweise Getriebegehäuse |
| US7060979B2 (en) | 2001-04-23 | 2006-06-13 | Mahle Filtersysteme Gmbh | Transmission sensor |
| DE102007037525A1 (de) * | 2007-08-09 | 2009-02-12 | Joma-Polytec Kunststofftechnik Gmbh | Ölfiltersystem und Verfahren zum Betreiben eines Ölfiltersystems |
| EP2479553A3 (de) * | 2003-09-19 | 2014-06-25 | Hydac Filtertechnik GmbH | Vorrichtung zur Partikelmessung mit Einstellen des Eingangsdrucks |
| DE202007019631U1 (de) | 2007-06-29 | 2014-08-26 | Martechnic Gmbh | Einrichtung zur Bestimmung des Wassergehalts in Mineralölen und ähnlichen Flüssigkeiten |
| DE102020114316A1 (de) | 2020-05-28 | 2021-12-02 | Voith Patent Gmbh | Anlage und Verfahren zur Versorgung einer Schmierstelle mit Schmieröl |
| DE102024103396A1 (de) * | 2024-02-07 | 2025-08-07 | Mann+Hummel Gmbh | Fluidkreislauf und Verfahren zum Steuern und/oder Regeln eines Fluidkreislaufs |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7218397B1 (en) * | 1999-09-17 | 2007-05-15 | Pall Corporation | Methods and systems for counting particles and sensing water |
| DE10208600A1 (de) * | 2002-02-27 | 2003-09-04 | Mann & Hummel Filter | Ölqualitätsmeßeinrichtung |
| CN101115992B (zh) * | 2004-12-08 | 2014-07-02 | 格特·霍斯特迈尔 | 用来分析内燃机中的机油的检测介质 |
| DE102004061412B3 (de) * | 2004-12-21 | 2006-02-02 | Daimlerchrysler Ag | Verfahren und Vorrichtung zur Ermittlung eines Schmiermittelstroms |
| US7550075B2 (en) * | 2005-03-23 | 2009-06-23 | Tokyo Electron Ltd. | Removal of contaminants from a fluid |
| US20060278584A1 (en) * | 2005-05-23 | 2006-12-14 | Bowden Robert W | Oil cleaning system and method |
| DE102008003179A1 (de) * | 2008-01-04 | 2009-07-16 | Airbus Deutschland Gmbh | Verfahren und Vorrichtung zum Entwässern einer Hydraulikflüssigkeit |
| GB201003614D0 (en) * | 2010-03-04 | 2010-04-21 | Airbus Operations Ltd | Water drain tool |
| US20120160020A1 (en) * | 2010-12-23 | 2012-06-28 | Roger Burger | Apparatus and method for moisture detection in a refridgerant/oil mixture |
| ES2657592T3 (es) * | 2011-03-03 | 2018-03-06 | Ntn Corporation | Sistema de supervisión de estado para dispositivo rodante y procedimiento de ajuste de umbral para el sistema de supervisión de estado |
| US8596417B2 (en) | 2011-07-05 | 2013-12-03 | Honeywell International Inc. | Lubrication systems with nozzle blockage detection systems |
| SE1550049A1 (sv) * | 2015-01-21 | 2016-07-22 | Osakeyhtiö Skf Ab | System, method & computer program product |
| CN105443966B (zh) * | 2015-12-29 | 2019-04-02 | 杭州杰牌传动科技有限公司 | 一种基于静电吸附的减速器润滑油检测装置及其使用方法 |
| US10711668B2 (en) * | 2016-01-25 | 2020-07-14 | Ford Global Technologies, Llc | Lubrication system monitoring assembly and method |
| WO2017188314A1 (ja) * | 2016-04-28 | 2017-11-02 | 日本精工株式会社 | 潤滑剤劣化検出装置、潤滑剤劣化状態評価方法 |
| DE102018004096A1 (de) * | 2018-05-19 | 2019-11-21 | Hydac Process Technology Gmbh | Phasentrennvorrichtung |
| CN112460460B (zh) * | 2020-11-05 | 2021-06-04 | 崇左南方水泥有限公司 | 水泥磨磨头智能调控系统 |
| US20220288523A1 (en) * | 2021-03-01 | 2022-09-15 | Phuc Labs, Inc. | System and method for the identification and separation of compounds carried in a fluid stream |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4649711A (en) * | 1985-09-03 | 1987-03-17 | Carrier Corporation | Apparatus and method for infrared optical electronic qualitative analysis of a fluid independent of the temperature thereof |
| US5049742A (en) * | 1989-11-16 | 1991-09-17 | Kyodo Oil Technical Research Co., Ltd. | Apparatus for detecting deterioration of engine oil |
| EP0557626A1 (en) * | 1990-10-01 | 1993-09-01 | Uop | Method and apparatus for measuring the amount of dissolved water in a liquid organic phase |
| EP0675359A1 (en) * | 1994-03-30 | 1995-10-04 | On-Site Analysis Inc. | On site oil analyzer |
| DE69116702T2 (de) * | 1990-02-09 | 1996-06-05 | Fiaam Filter Spa | Ölfilter für Verbrennungsmotoren für Autos |
| DE19650397A1 (de) * | 1996-12-05 | 1998-06-10 | Joerg Prof Dr Ing Hoffmann | Ermittlung des Verschleißgrades von Öl unter Nutzung der Absorption von Infrarotstrahlung im Bereich um 10,3 um Wellenlänge |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3003353A (en) * | 1958-09-29 | 1961-10-10 | Yosemite Chemical Co | Method and apparatus for testing oil for moisture content |
| DE6911670U (de) | 1969-03-22 | 1974-12-12 | Baier Erdmann Dipl-Ing | Gebaeude aus fertigteilen mit einem grundrissraster |
| US3966603A (en) * | 1975-11-25 | 1976-06-29 | Grant Michael G | Oil-in-water monitor |
| US4499376A (en) * | 1981-03-23 | 1985-02-12 | Paul T. Frost | Hydraulic oil counting device and water separator |
| JPS6051508A (ja) * | 1983-08-31 | 1985-03-23 | Toyota Motor Corp | 循環油中水分の除去装置 |
| US4649281A (en) * | 1985-07-02 | 1987-03-10 | The United States Of America As Represented By The Secretary Of The Navy | Oil content monitor/control system |
| GB2194333B (en) | 1986-07-01 | 1990-08-29 | Electricity Council | Detection method and device |
| DE3843498C1 (enExample) * | 1988-12-23 | 1990-06-13 | Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De | |
| JPH03238003A (ja) * | 1990-02-13 | 1991-10-23 | Tomoe Kogyo Kk | 舶用燃料油中の含有水分除去方法および装置 |
| JPH0752479Y2 (ja) * | 1990-03-19 | 1995-11-29 | 石川島播磨重工業株式会社 | 製紙機械のロール軸受潤滑装置 |
| JPH0824792B2 (ja) * | 1991-06-05 | 1996-03-13 | 富士車輌株式会社 | ドライクリーニング機 |
| DE4233220A1 (de) | 1992-10-02 | 1994-04-07 | Conducta Endress & Hauser | Verfahren und Vorrichtung zur Trübungsmessung bei wässrigen Medien |
| US5599460A (en) * | 1993-08-13 | 1997-02-04 | Van Schoiack; Michael | Water/glycol sensor for use in oil systems |
| JPH08247942A (ja) * | 1995-03-10 | 1996-09-27 | Horiba Ltd | 赤外線ガス分析計 |
| JPH0996398A (ja) * | 1995-09-29 | 1997-04-08 | Shimadzu Corp | 潤滑油管理システム |
| JPH09318526A (ja) * | 1996-03-29 | 1997-12-12 | Japan Energy Corp | 油中水分検知器および油中水分量の測定方法 |
| US5968371A (en) * | 1998-01-26 | 1999-10-19 | Nelson Industries, Inc. | Lubricant circulation diagnostic and modeling system |
| US6076049A (en) | 1998-02-26 | 2000-06-13 | Premier Instruments, Inc. | Narrow band infrared water cut meter |
| US6014894A (en) | 1998-05-12 | 2000-01-18 | Herron; Bobby Joe | Motor sensor system |
| US6478953B2 (en) * | 2000-11-30 | 2002-11-12 | Porous Media Corporation | Oil filter and dehydrator |
-
1999
- 1999-11-30 DE DE19957592A patent/DE19957592A1/de not_active Withdrawn
-
2000
- 2000-11-29 JP JP2001542132A patent/JP2003515707A/ja active Pending
- 2000-11-29 DE DE50004375T patent/DE50004375D1/de not_active Expired - Lifetime
- 2000-11-29 EP EP00989810A patent/EP1234138B1/de not_active Expired - Lifetime
- 2000-11-29 WO PCT/DE2000/004234 patent/WO2001040701A2/de not_active Ceased
- 2000-11-29 US US10/148,122 patent/US6746610B2/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4649711A (en) * | 1985-09-03 | 1987-03-17 | Carrier Corporation | Apparatus and method for infrared optical electronic qualitative analysis of a fluid independent of the temperature thereof |
| US5049742A (en) * | 1989-11-16 | 1991-09-17 | Kyodo Oil Technical Research Co., Ltd. | Apparatus for detecting deterioration of engine oil |
| DE69116702T2 (de) * | 1990-02-09 | 1996-06-05 | Fiaam Filter Spa | Ölfilter für Verbrennungsmotoren für Autos |
| EP0557626A1 (en) * | 1990-10-01 | 1993-09-01 | Uop | Method and apparatus for measuring the amount of dissolved water in a liquid organic phase |
| EP0675359A1 (en) * | 1994-03-30 | 1995-10-04 | On-Site Analysis Inc. | On site oil analyzer |
| DE19650397A1 (de) * | 1996-12-05 | 1998-06-10 | Joerg Prof Dr Ing Hoffmann | Ermittlung des Verschleißgrades von Öl unter Nutzung der Absorption von Infrarotstrahlung im Bereich um 10,3 um Wellenlänge |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7060979B2 (en) | 2001-04-23 | 2006-06-13 | Mahle Filtersysteme Gmbh | Transmission sensor |
| DE10310380B3 (de) * | 2003-03-07 | 2004-10-14 | Carl Freudenberg Kg | Vorrichtung und Verfahren zur Messung des Ölverlustes oder der Leckrate an Dichtungen |
| EP2479553A3 (de) * | 2003-09-19 | 2014-06-25 | Hydac Filtertechnik GmbH | Vorrichtung zur Partikelmessung mit Einstellen des Eingangsdrucks |
| DE102004007749A1 (de) * | 2004-02-18 | 2005-09-08 | Zf Friedrichshafen Ag | Vorrichtung und Verfahren zur Erkennung von Wasserdampf in Öl in einem Gehäuse, vorzugsweise Getriebegehäuse |
| DE202007019631U1 (de) | 2007-06-29 | 2014-08-26 | Martechnic Gmbh | Einrichtung zur Bestimmung des Wassergehalts in Mineralölen und ähnlichen Flüssigkeiten |
| DE102007037525A1 (de) * | 2007-08-09 | 2009-02-12 | Joma-Polytec Kunststofftechnik Gmbh | Ölfiltersystem und Verfahren zum Betreiben eines Ölfiltersystems |
| DE102020114316A1 (de) | 2020-05-28 | 2021-12-02 | Voith Patent Gmbh | Anlage und Verfahren zur Versorgung einer Schmierstelle mit Schmieröl |
| DE102024103396A1 (de) * | 2024-02-07 | 2025-08-07 | Mann+Hummel Gmbh | Fluidkreislauf und Verfahren zum Steuern und/oder Regeln eines Fluidkreislaufs |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2001040701A3 (de) | 2002-01-17 |
| JP2003515707A (ja) | 2003-05-07 |
| EP1234138A2 (de) | 2002-08-28 |
| EP1234138B1 (de) | 2003-11-05 |
| DE50004375D1 (de) | 2003-12-11 |
| US6746610B2 (en) | 2004-06-08 |
| US20030116509A1 (en) | 2003-06-26 |
| WO2001040701A2 (de) | 2001-06-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| 8139 | Disposal/non-payment of the annual fee |