Inventor
Thomas Knauf
Inventor
Dormagen, DE
Overview
Patents· 54 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds44%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry14%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds9%
B01DSeparation8%
Y02PClimate change mitigation technologies in the production or processing of goods6%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds5%
C02FTreatment of water, waste water, sewage, or sludge4%
C01BNon-metallic elements2%
B01LChemical or physical laboratory apparatus for general use1%
C08CTreatment or chemical modification of rubbers1%
PatentTitleYear
10,947,187Method for producing methylene-diphenylene-diisocyanates and polymethylene-polyphenylene-polyisocyanates202110,875,827Process for preparing an isocyanate by partly adiabatic phosgenation of the corresponding amine202010,851,048Process for preparing an isocyanate by partly adiabatically operated phosgenation of the corresponding amine202010,815,189Method for producing nitrobenzene202010,689,322Process for preparation of di- and polyamines of the diphenylmethane series202010,689,323Process for preparation of di- and polyamines of the diphenylmethane series202010,640,455Method of producing diamines and polyamines of the diphenylmethane series202010,640,453Method of producing diamines and polyamines of the diphenylmethane series202010,633,327Method of producing diamines and polyamines of the diphenylmethane series at different production capacities202010,626,078Method of producing diamines and polyamines of the diphenylmethane series at different production capacities202010,618,871Process for producing isocyanate and at least one further chemical product in an integrated production202010,577,311Method for producing isocyanates202010,513,487Methods for producing chemical products with operation interruptions201910,364,214Method for producing isocyanates201910,280,135Method for producing isocyanates201910,125,090Process for preparation of di- and polyamines of the diphenylmethane series201810,125,091Process for preparation of di- and polyamines of the diphenylmethane series201810,023,524Process for producing nitrobenzene20189,896,407'Exhaust gas cleaning in a method for continuously producing dinitrotoluene'20189,845,286Process for operating a gas phase phosgenation plant20179,840,461'Method for operating a gas-phase phosgenation plant'20179,815,769'Process for the preparation of di- and polyamines from the diphenylmethane series'20179,815,703'Method for starting up and shutting down a phosgene generator'20179,796,669'Process for preparing isocyanates'20179,771,291'Process for working up waste water from nitrobenzene preparation'20179,771,290'Process for working up waste water from nitrobenzene preparation'20179,682,917'Method for treating a substance mixture comprising an aromatic amine, in particular a substance mixture of raw aniline'20179,469,594'Method for stopping a reaction during the production of aromatic amines from nitroaromatics'20169,416,094'Process for the preparation of di- and polyamines of the diphenylmethane series'20169,364,810'Chemical reactor with knitted wire mesh fabric as a holding device for particles'20169,309,184'Method for producing diamines and polyamines of the diphenylmethane series'20169,302,978'Process for the preparation of nitrobenzene by adiabatic nitration'20169,290,438'Method for starting a reaction during the production of aromatic amines from nitroaromatics'20169,284,256'Process for the production of nitrobenzene by adiabatic nitration'20169,284,255'Method for producing nitrobenzene by adiabatic nitriding'20169,260,377'Method for producing nitrobenzene by adiabatic nitriding'20169,227,909'Method for the continuous production of nitrobenzene'20169,012,700'Method for continuous production of nitrobenzene'20158,729,309'Method for producing nitrobenzene by adiabatic nitriding'20147,781,624'Process for the preparation of nitrobenzene by adiabatic nitration'20107,763,759'Continuous process for the manufacture of nitrobenzene'20107,344,650'Process for the working-up of waste waters containing aromatic nitro compounds'20087,326,816'Process for the production of nitrobenzene'20086,759,497'Modified polymers with a high proportion of cis-position double bonds'20046,583,246'Modifiers for anionic polymerization'20036,521,720'Continuous process for producing elastomers'20036,492,476'Catalyst based on rare earth metal compounds'20026,350,833'Method for the suspension polymerization of conjugated dienes'20025,494,983'Method for anionic polymerization of acrylic and methacrylic acid derivatives and acrylonitrile methacrylonitrile using resonance stabilized anions'19965,453,473'Reduced fouling in process for production of EP'19955,428,119'Process for polybutadiene production using catalyst with high activity'19955,412,045'Preparation of high cis-1,4-polybutadiene with reduced gel'19955,397,851'Process for cis-1,4-polybutadiene production with reduced gel formation'19955,220,045'Process for the production of metal carboxylates and their use for the polymerization of monomers suitable for Ziegler-Natta polymerization'1993Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1993–2004Patents assigned to BAYER AG (6)· patent assignee history
1993–1996Based in Sarnia, CA· patent location history
1995Patents assigned to POLYSAR RUBBER CORP (3)· patent assignee history
2002–2021Based in Dormagen, DE· patent location history
2008–2017Patents assigned to BAYER MATERIALSCIENCE AG (13)· patent assignee history
2014–2016Patents assigned to KNAUF THOMAS (3)· patent assignee history
2016–2020Patents assigned to COVESTRO DEUTSCHLAND AG (31)· patent assignee history
2016Based in Lahntal, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| COVESTRO DEUTSCHLAND AG | 31 | 2016–2020 |
| BAYER MATERIALSCIENCE AG | 13 | 2008–2017 |
| BAYER AG | 6 | 1993–2004 |
| KNAUF THOMASself | 3 | 2014–2016 |
| POLYSAR RUBBER CORP | 3 | 1995 |
Locations
| Location | Patents | Span |
|---|---|---|
| Dormagen, DE | 47 | 2002–2021 |
| Sarnia, CA | 6 | 1993–1996 |
| Lahntal, DE | 1 | 2016 |