CA2438533C - Structures composites de membranes selectivement permeables a l'hydrogene et processeurs de gaz combustibles en faisant usage - Google Patents
Structures composites de membranes selectivement permeables a l'hydrogene et processeurs de gaz combustibles en faisant usage Download PDFInfo
- Publication number
- CA2438533C CA2438533C CA2438533A CA2438533A CA2438533C CA 2438533 C CA2438533 C CA 2438533C CA 2438533 A CA2438533 A CA 2438533A CA 2438533 A CA2438533 A CA 2438533A CA 2438533 C CA2438533 C CA 2438533C
- Authority
- CA
- Canada
- Prior art keywords
- hydrogen
- substrate
- structures
- layer
- selectively
- 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 - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/14—Dynamic membranes
- B01D69/141—Heterogeneous membranes, e.g. containing dispersed material; Mixed matrix membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
- B01D53/228—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion characterised by specific membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
- B01D53/229—Integrated processes (Diffusion and at least one other process, e.g. adsorption, absorption)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0039—Inorganic membrane manufacture
- B01D67/0041—Inorganic membrane manufacture by agglomeration of particles in the dry state
- B01D67/00411—Inorganic membrane manufacture by agglomeration of particles in the dry state by sintering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/04—Tubular membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/02—Inorganic material
- B01D71/022—Metals
- B01D71/0223—Group 8, 9 or 10 metals
- B01D71/02231—Palladium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J19/087—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
- B01J19/088—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen; Reversible storage of hydrogen
- C01B3/02—Production of hydrogen; Production of gaseous mixtures containing hydrogen
- C01B3/32—Production of hydrogen; Production of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide or air
- C01B3/34—Production of hydrogen; Production of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide or air by reaction of hydrocarbons with gasifying agents
- C01B3/342—Production of hydrogen; Production of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide or air by reaction of hydrocarbons with gasifying agents with the aid of electrical means, electromagnetic or mechanical vibrations, or particle radiations
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen; Reversible storage of hydrogen
- C01B3/50—Separation of hydrogen or hydrogen-containing gases from gaseous mixtures, e.g. purification
- C01B3/501—Separation of hydrogen or hydrogen-containing gases from gaseous mixtures, e.g. purification by diffusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/22—Cooling or heating elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/42—Catalysts within the flow path
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2319/00—Membrane assemblies within one housing
- B01D2319/04—Elements in parallel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/02—Details relating to pores or porosity of the membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/04—Characteristic thickness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/22—Thermal or heat-resistance properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/24—Mechanical properties, e.g. strength
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J2219/0803—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
- B01J2219/0805—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
- B01J2219/0807—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges involving electrodes
- B01J2219/0809—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges involving electrodes employing two or more electrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J2219/0803—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
- B01J2219/0805—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
- B01J2219/0807—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges involving electrodes
- B01J2219/0824—Details relating to the shape of the electrodes
- B01J2219/0826—Details relating to the shape of the electrodes essentially linear
- B01J2219/083—Details relating to the shape of the electrodes essentially linear cylindrical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J2219/0873—Materials to be treated
- B01J2219/0875—Gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J2219/0894—Processes carried out in the presence of a plasma
- B01J2219/0896—Cold plasma
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
- C01B2203/0405—Purification by membrane separation
- C01B2203/041—In-situ membrane purification during hydrogen production
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
- C01B2203/0465—Composition of the impurity
- C01B2203/047—Composition of the impurity the impurity being carbon monoxide
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
- C01B2203/0465—Composition of the impurity
- C01B2203/0475—Composition of the impurity the impurity being carbon dioxide
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/08—Methods of heating or cooling
- C01B2203/0805—Methods of heating the process for making hydrogen or synthesis gas
- C01B2203/0861—Methods of heating the process for making hydrogen or synthesis gas by plasma
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Toxicology (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Hydrogen, Water And Hydrids (AREA)
- Powder Metallurgy (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR01/02219 | 2001-02-19 | ||
| FR0102219A FR2820988B1 (fr) | 2001-02-19 | 2001-02-19 | Structures composites de membranes selectivement permeables a l'hydrogene et processeurs de gaz combustibles en faisant usage |
| PCT/FR2002/000578 WO2002066144A2 (fr) | 2001-02-19 | 2002-02-14 | Structures composites de membranes selectivement permeables a l'hydrogene et processeurs de gaz combustibles en faisant usage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2438533A1 CA2438533A1 (fr) | 2002-08-29 |
| CA2438533C true CA2438533C (fr) | 2010-05-11 |
Family
ID=8860180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2438533A Expired - Lifetime CA2438533C (fr) | 2001-02-19 | 2002-02-14 | Structures composites de membranes selectivement permeables a l'hydrogene et processeurs de gaz combustibles en faisant usage |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US7449052B2 (https=) |
| EP (1) | EP1361916B1 (https=) |
| JP (1) | JP2004526559A (https=) |
| AT (1) | ATE383904T1 (https=) |
| CA (1) | CA2438533C (https=) |
| DE (1) | DE60224647D1 (https=) |
| FR (1) | FR2820988B1 (https=) |
| WO (1) | WO2002066144A2 (https=) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2519774A1 (en) * | 2003-03-21 | 2004-10-07 | Worcester Polytechnic Institute | Method for fabricating composite gas separation modules |
| US7172644B2 (en) * | 2003-03-21 | 2007-02-06 | Worcester Polytechnic Institute | Method for curing defects in the fabrication of a composite gas separation module |
| EP1606040A2 (en) * | 2003-03-21 | 2005-12-21 | Worcester Polytechnic Institute | Composite gas separations modules having intermediate metal layers |
| AU2004237778B2 (en) * | 2003-05-02 | 2008-08-14 | Worcester Polytechnic Institute | Composite gas separation modules having high tamman temperature intermediate layers |
| US7125440B2 (en) * | 2003-06-04 | 2006-10-24 | Bossard Peter R | Composite structure for high efficiency hydrogen separation and its associated methods of manufacture and use |
| US7727596B2 (en) * | 2004-07-21 | 2010-06-01 | Worcester Polytechnic Institute | Method for fabricating a composite gas separation module |
| JP2008513337A (ja) * | 2004-09-21 | 2008-05-01 | ウスター ポリテクニック インスティチュート | 膜増強反応器 |
| CA2580585A1 (en) * | 2004-09-21 | 2006-03-30 | Worcester Polytechnic Institute | Membrane steam reformer |
| CA2580279A1 (en) * | 2004-09-21 | 2006-03-30 | Worcester Polytechnic Institute | Reactor and process for steam reforming |
| US7559979B2 (en) * | 2005-02-04 | 2009-07-14 | Ngk Insulators, Ltd. | Hydrogen separator and method for production thereof |
| US20070044663A1 (en) * | 2005-08-25 | 2007-03-01 | The University Of Chicago | Method for fabricating a hydrogen separation membrane on a porous substrate |
| JP4908821B2 (ja) * | 2005-10-28 | 2012-04-04 | トヨタ自動車株式会社 | 支持体付水素分離膜、それを備える燃料電池および水素分離装置ならびにそれらの製造方法 |
| ES2476801T3 (es) * | 2007-02-20 | 2014-07-15 | Shell Internationale Research Maatschappij B.V. | Un método para reacondicionar una membrana de separación de gases |
| JP2010523315A (ja) | 2007-04-05 | 2010-07-15 | ウスター ポリテクニック インスティチュート | 多孔質アノード酸化層を有する複合構造および製造方法 |
| US8479487B2 (en) * | 2009-08-10 | 2013-07-09 | General Electric Company | Hybrid multichannel porous structure for hydrogen separation |
| US8652239B2 (en) | 2010-05-03 | 2014-02-18 | Worcester Polytechnic Institute | High permeance sulfur tolerant Pd/Cu alloy membranes |
| TWI473912B (zh) * | 2013-03-28 | 2015-02-21 | 國立成功大學 | New energy vehicle plasma hydrogen production unit |
| ES3023566T3 (en) * | 2020-09-01 | 2025-06-02 | Univ Eindhoven Tech | Coupling device and combination and assembly thereof with a tube |
| CN117250130B (zh) * | 2023-11-20 | 2024-02-06 | 华电重工机械有限公司 | 一种质子交换膜氢渗测试的方法 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5217506A (en) * | 1990-08-10 | 1993-06-08 | Bend Research, Inc. | Hydrogen-permeable composite metal membrane and uses thereof |
| US5645626A (en) * | 1990-08-10 | 1997-07-08 | Bend Research, Inc. | Composite hydrogen separation element and module |
| US5498278A (en) * | 1990-08-10 | 1996-03-12 | Bend Research, Inc. | Composite hydrogen separation element and module |
| US5393325A (en) * | 1990-08-10 | 1995-02-28 | Bend Research, Inc. | Composite hydrogen separation metal membrane |
| US6461408B2 (en) * | 1995-11-06 | 2002-10-08 | Robert E. Buxbaum | Hydrogen generator |
| WO1997017125A1 (en) * | 1995-11-06 | 1997-05-15 | Buxbaum Robert E | Apparatus and methods for gas extraction |
| FR2757499B1 (fr) * | 1996-12-24 | 2001-09-14 | Etievant Claude | Generateur d'hydrogene |
| US6152987A (en) * | 1997-12-15 | 2000-11-28 | Worcester Polytechnic Institute | Hydrogen gas-extraction module and method of fabrication |
| US6207132B1 (en) * | 1998-12-04 | 2001-03-27 | Chinese Petroleum Corporation | Process for producing high purity hydrogen |
| US6653005B1 (en) * | 2000-05-10 | 2003-11-25 | University Of Central Florida | Portable hydrogen generator-fuel cell apparatus |
| US6923944B2 (en) * | 2000-07-07 | 2005-08-02 | Robert E. Buxbaum | Membrane reactor for gas extraction |
-
2001
- 2001-02-19 FR FR0102219A patent/FR2820988B1/fr not_active Expired - Lifetime
-
2002
- 2002-02-14 EP EP02704838A patent/EP1361916B1/fr not_active Expired - Lifetime
- 2002-02-14 CA CA2438533A patent/CA2438533C/fr not_active Expired - Lifetime
- 2002-02-14 AT AT02704838T patent/ATE383904T1/de not_active IP Right Cessation
- 2002-02-14 WO PCT/FR2002/000578 patent/WO2002066144A2/fr not_active Ceased
- 2002-02-14 DE DE60224647T patent/DE60224647D1/de not_active Expired - Lifetime
- 2002-02-14 US US10/468,552 patent/US7449052B2/en not_active Expired - Fee Related
- 2002-02-14 JP JP2002565698A patent/JP2004526559A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP1361916B1 (fr) | 2008-01-16 |
| FR2820988B1 (fr) | 2003-04-25 |
| DE60224647D1 (de) | 2008-03-06 |
| WO2002066144A2 (fr) | 2002-08-29 |
| ATE383904T1 (de) | 2008-02-15 |
| US20050072304A1 (en) | 2005-04-07 |
| CA2438533A1 (fr) | 2002-08-29 |
| FR2820988A1 (fr) | 2002-08-23 |
| EP1361916A2 (fr) | 2003-11-19 |
| JP2004526559A (ja) | 2004-09-02 |
| WO2002066144A3 (fr) | 2002-11-28 |
| US7449052B2 (en) | 2008-11-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20220214 |