DE3216004C2 - - Google Patents
Info
- Publication number
- DE3216004C2 DE3216004C2 DE3216004A DE3216004A DE3216004C2 DE 3216004 C2 DE3216004 C2 DE 3216004C2 DE 3216004 A DE3216004 A DE 3216004A DE 3216004 A DE3216004 A DE 3216004A DE 3216004 C2 DE3216004 C2 DE 3216004C2
- Authority
- DE
- Germany
- Prior art keywords
- reactor
- acid
- inlet
- tube reactor
- cellulose
- 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
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 27
- 239000002253 acid Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 22
- 239000001913 cellulose Substances 0.000 claims description 20
- 229920002678 cellulose Polymers 0.000 claims description 20
- 239000002002 slurry Substances 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 150000007513 acids Chemical class 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 230000035484 reaction time Effects 0.000 claims 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 11
- 238000006460 hydrolysis reaction Methods 0.000 description 11
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
- 230000007062 hydrolysis Effects 0.000 description 9
- 239000007788 liquid Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 238000005903 acid hydrolysis reaction Methods 0.000 description 5
- 235000000346 sugar Nutrition 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000000855 fermentation Methods 0.000 description 4
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 description 4
- 238000000265 homogenisation Methods 0.000 description 4
- 229920005610 lignin Polymers 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- 229920002488 Hemicellulose Polymers 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 238000010924 continuous production Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 230000004151 fermentation Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 2
- SRBFZHDQGSBBOR-IOVATXLUSA-N D-xylopyranose Chemical compound O[C@@H]1COC(O)[C@H](O)[C@H]1O SRBFZHDQGSBBOR-IOVATXLUSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 240000000111 Saccharum officinarum Species 0.000 description 2
- 235000007201 Saccharum officinarum Nutrition 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- PYMYPHUHKUWMLA-UHFFFAOYSA-N arabinose Natural products OCC(O)C(O)C(O)C=O PYMYPHUHKUWMLA-UHFFFAOYSA-N 0.000 description 2
- SRBFZHDQGSBBOR-UHFFFAOYSA-N beta-D-Pyranose-Lyxose Natural products OC1COC(O)C(O)C1O SRBFZHDQGSBBOR-UHFFFAOYSA-N 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 2
- 239000008103 glucose Substances 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- WQZGKKKJIJFFOK-QTVWNMPRSA-N D-mannopyranose Chemical compound OC[C@H]1OC(O)[C@@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-QTVWNMPRSA-N 0.000 description 1
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000010564 aerobic fermentation Methods 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- PYMYPHUHKUWMLA-WDCZJNDASA-N arabinose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)C=O PYMYPHUHKUWMLA-WDCZJNDASA-N 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 235000021395 porridge Nutrition 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13K—SACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES
- C13K1/00—Glucose; Glucose-containing syrups
- C13K1/02—Glucose; Glucose-containing syrups obtained by saccharification of cellulosic materials
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P7/00—Preparation of oxygen-containing organic compounds
- C12P7/02—Preparation of oxygen-containing organic compounds containing a hydroxy group
- C12P7/04—Preparation of oxygen-containing organic compounds containing a hydroxy group acyclic
- C12P7/06—Ethanol, i.e. non-beverage
- C12P7/08—Ethanol, i.e. non-beverage produced as by-product or from waste or cellulosic material substrate
- C12P7/10—Ethanol, i.e. non-beverage produced as by-product or from waste or cellulosic material substrate substrate containing cellulosic material
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Biotechnology (AREA)
- Emergency Medicine (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Engineering & Computer Science (AREA)
- Genetics & Genomics (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Processing Of Solid Wastes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BR8102802A BR8102802A (pt) | 1981-04-30 | 1981-04-30 | Processo e instalacao para obtencao de etanol por hidrolise acida continua de materiais celulosicos |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3216004A1 DE3216004A1 (de) | 1982-12-30 |
| DE3216004C2 true DE3216004C2 (en:Method) | 1987-08-06 |
Family
ID=4027798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19823216004 Granted DE3216004A1 (de) | 1981-04-30 | 1982-04-29 | Verfahren zur herstellung von ethanol sowie eine vorrichtung zur durchfuehrung dieses verfahrens |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US4529699A (en:Method) |
| AU (1) | AU552663B2 (en:Method) |
| BE (1) | BE893017A (en:Method) |
| BR (1) | BR8102802A (en:Method) |
| CA (1) | CA1183788A (en:Method) |
| CU (1) | CU21427A3 (en:Method) |
| DE (1) | DE3216004A1 (en:Method) |
| FI (1) | FI76547C (en:Method) |
| FR (1) | FR2512832A1 (en:Method) |
| GB (1) | GB2100282B (en:Method) |
| IT (1) | IT1151752B (en:Method) |
| ZA (1) | ZA822867B (en:Method) |
Families Citing this family (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1173380A (en) * | 1980-02-19 | 1984-08-28 | Michael I. Sherman | Acid hydrolysis of biomass for ethanol production |
| DE3307076A1 (de) * | 1983-03-01 | 1984-09-06 | Knauth, Hans, Dipl.-Ing., 7758 Meersburg | Verfahren zur herstellung von futtermitteln und aethanol |
| US5135861A (en) * | 1987-07-28 | 1992-08-04 | Pavilon Stanley J | Method for producing ethanol from biomass |
| US4952504A (en) * | 1987-07-28 | 1990-08-28 | Pavilon Stanley J | Method for producing ethanol from biomass |
| US5248484A (en) * | 1991-08-05 | 1993-09-28 | Martin Marietta Energy Systems, Inc. | Attrition reactor system |
| US5198074A (en) * | 1991-11-29 | 1993-03-30 | Companhia Industreas Brasileiras Portela | Process to produce a high quality paper product and an ethanol product from bamboo |
| US5711817A (en) * | 1996-05-01 | 1998-01-27 | Eau-Viron Incorporated | Method for the continuous conversion of cellulosic material to sugar |
| YU25697A (sh) * | 1997-06-18 | 1999-07-28 | Dušan Ćirić | Postupak za dobijanje etil alkohola iz celuloze |
| US5876505A (en) * | 1998-01-13 | 1999-03-02 | Thermo Fibergen, Inc. | Method of producing glucose from papermaking sludge using concentrated or dilute acid hydrolysis |
| US6423145B1 (en) * | 2000-08-09 | 2002-07-23 | Midwest Research Institute | Dilute acid/metal salt hydrolysis of lignocellulosics |
| US20060124124A1 (en) * | 2004-12-14 | 2006-06-15 | Gas Technology Institute | Hydroxyl radical/dilute acid hydrolysis of lignocellulosic materials |
| BRPI0622271A2 (pt) | 2005-07-19 | 2011-08-09 | Inbicon As | método para pré-tratamento hidrotérmico contìnuo de matéria-prima de biomassa de lignocelulose e alimento de animal ruminante |
| GB0601828D0 (en) * | 2006-01-31 | 2006-03-08 | Tapper Company The Ltd S | A Method Of Heat Generation |
| US7666637B2 (en) * | 2006-09-05 | 2010-02-23 | Xuan Nghinh Nguyen | Integrated process for separation of lignocellulosic components to fermentable sugars for production of ethanol and chemicals |
| US7815741B2 (en) | 2006-11-03 | 2010-10-19 | Olson David A | Reactor pump for catalyzed hydrolytic splitting of cellulose |
| US7815876B2 (en) | 2006-11-03 | 2010-10-19 | Olson David A | Reactor pump for catalyzed hydrolytic splitting of cellulose |
| CA2685177A1 (en) * | 2007-05-02 | 2008-11-13 | Mascoma Corporation | Two-stage method for pretreatment of lignocellulosic biomass |
| GB2464691A (en) * | 2008-10-22 | 2010-04-28 | Christopher Denham Wall | Manufacture of methanol from agricultural by-product cellulosic/lignitic material |
| US8815552B2 (en) | 2009-03-03 | 2014-08-26 | Poet Research, Inc. | System for fermentation of biomass for the production of ethanol |
| US8138371B2 (en) * | 2009-03-11 | 2012-03-20 | Biofine Technologies Llc | Production of formic acid |
| MY186382A (en) | 2009-03-12 | 2021-07-21 | Univ Malaya | A conversion of cellulosic materials into glucose for use in bioethanol production |
| WO2011116317A1 (en) | 2010-03-19 | 2011-09-22 | Poet Research, Inc. | System for the treatment of biomass |
| CA2795503C (en) | 2010-03-19 | 2020-02-18 | Poet Research, Inc. | System for treatment of biomass to facilitate the production of ethanol |
| KR20130119935A (ko) | 2010-11-01 | 2013-11-01 | 리엑 퓰 에이비 | 고온압축수 처리에 의한 바이오매스 피드스탁의 조절 전환을 위한 공정 |
| US20130239955A1 (en) * | 2010-11-25 | 2013-09-19 | Ferdi Schüth | Method for the acid-catalyzed depolymerization of cellulose |
| US9663807B2 (en) | 2011-01-18 | 2017-05-30 | Poet Research, Inc. | Systems and methods for hydrolysis of biomass |
| CN103842524A (zh) | 2011-07-07 | 2014-06-04 | 波特研究公司 | 酸回收系统和方法 |
| CA2854291A1 (en) | 2011-11-08 | 2013-05-16 | Reac Fuel Ab | Liquefaction of biomass at low ph |
| US20130183715A1 (en) * | 2012-01-12 | 2013-07-18 | Paul T. Baskis | Method and Apparatus for Producing Engineered Fuel from High Cellulose Feedstock |
| BR112015010184A2 (pt) * | 2012-11-08 | 2017-07-11 | Renmatix Inc | processo para suprimir uma reação de hidrólise de ácido diluído hidrotérmica de uma matéria-prima de biomassa; e método |
| US20240189737A1 (en) * | 2021-04-02 | 2024-06-13 | Natural Extraction Systems, LLC | Compositions for low-temperature distillation of high-boiling-point molecules |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1857429A (en) * | 1929-10-21 | 1932-05-10 | Commercial Solvents Corp | Fermentation of cellulosic materials |
| US2086701A (en) * | 1933-08-30 | 1937-07-13 | Dreyfus Henry | Hydrolysis of cellulose |
| US2222885A (en) * | 1937-03-01 | 1940-11-26 | Alfred M Thomsen | Utilization of plant wastes |
| US4201596A (en) * | 1979-01-12 | 1980-05-06 | American Can Company | Continuous process for cellulose saccharification |
| US4342831A (en) * | 1979-07-02 | 1982-08-03 | American Can Company | Fermentable acid hydrolyzates and fermentation process |
-
1981
- 1981-04-30 BR BR8102802A patent/BR8102802A/pt unknown
-
1982
- 1982-04-26 GB GB8212055A patent/GB2100282B/en not_active Expired
- 1982-04-27 AU AU83038/82A patent/AU552663B2/en not_active Ceased
- 1982-04-27 ZA ZA822867A patent/ZA822867B/xx unknown
- 1982-04-27 US US06/372,105 patent/US4529699A/en not_active Expired - Fee Related
- 1982-04-28 CA CA000401839A patent/CA1183788A/en not_active Expired
- 1982-04-29 BE BE0/207959A patent/BE893017A/fr not_active IP Right Cessation
- 1982-04-29 FR FR8207418A patent/FR2512832A1/fr active Granted
- 1982-04-29 FI FI821510A patent/FI76547C/fi not_active IP Right Cessation
- 1982-04-29 IT IT20984/82A patent/IT1151752B/it active
- 1982-04-29 DE DE19823216004 patent/DE3216004A1/de active Granted
- 1982-04-29 CU CU818120802A patent/CU21427A3/es unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IT8220984A0 (it) | 1982-04-29 |
| FI821510A0 (fi) | 1982-04-29 |
| GB2100282B (en) | 1985-02-06 |
| FI76547B (fi) | 1988-07-29 |
| BE893017A (fr) | 1982-08-16 |
| FR2512832A1 (fr) | 1983-03-18 |
| US4529699A (en) | 1985-07-16 |
| BR8102802A (pt) | 1982-12-14 |
| FR2512832B1 (en:Method) | 1985-03-29 |
| DE3216004A1 (de) | 1982-12-30 |
| FI821510L (fi) | 1982-10-31 |
| GB2100282A (en) | 1982-12-22 |
| CU21427A3 (en) | 1987-01-13 |
| FI76547C (fi) | 1988-11-10 |
| ZA822867B (en) | 1983-09-28 |
| CA1183788A (en) | 1985-03-12 |
| AU552663B2 (en) | 1986-06-12 |
| IT1151752B (it) | 1986-12-24 |
| AU8303882A (en) | 1982-11-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| 8128 | New person/name/address of the agent |
Representative=s name: GEYER, W., DIPL.-ING. DR.-ING. HAGEMANN, H., DIPL. |
|
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8328 | Change in the person/name/address of the agent |
Free format text: HAGEMANN, H., DIPL.-CHEM. DR.RER.NAT. KEHL, G., DIPL.-PHYS., PAT.-ANWAELTE, 8000 MUENCHEN |
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| 8339 | Ceased/non-payment of the annual fee |