Inventor
Bernd Lehmann
Inventor
Constance, DE
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds27%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%
B29CShaping or joining of plastics13%
C07DHeterocyclic compounds13%
D06BTreating textile materials using liquids, gases or vapours13%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry7%
C02FTreatment of water, waste water, sewage, or sludge7%
PatentTitleYear
7,267,776'Foams for removing pollutants and/or heavy metals from flowable media'20074,751,298'Production of 1-(3-hydroxy-propyl)-1,4-diazepane and 1,4-bis(3,4,5-trimethoxy-benzoyloxy)-propyl-diazepane derivatives thereof'19884,486,600'Process for the production of .beta.-hydroxy-.alpha.-aminocarboxylic acids'19844,482,760'Process for the production of 1,2-diols'19844,436,910'Process for the production of aqueous solutions of sodium salts of .alpha.- a'19844,339,591'Process for the production of caboxylic acid cyanides'19824,216,181'Process for applying a layer of a liquid foamable reaction mixture to a continuously moving shaping support'19804,165,211'Apparatus for applying a layer of a liquid foamable reaction mixture to a continuously moving support'1979Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1979–1980Patents assigned to BAYER AG (2)· patent assignee history
1979–1980Based in Cologne, DE· patent location history
1982–1988Patents assigned to DEGUSSA (5)· patent assignee history
1982–1984Based in Freigericht, DE· patent location history
1984–1988Based in Constance, DE· patent location history
1984Based in Konstanz, DE· patent location history
2007Patents assigned to LANXESS DEUTSCHLAND GMBH (1)· patent assignee history
2007Based in Köln, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DEGUSSA | 5 | 1982–1988 |
| BAYER AG | 2 | 1979–1980 |
| LANXESS DEUTSCHLAND GMBH | 1 | 2007 |
Locations
| Location | Patents | Span |
|---|---|---|
| Constance, DE | 2 | 1984–1988 |
| Freigericht, DE | 2 | 1982–1984 |
| Cologne, DE | 2 | 1979–1980 |
| Köln, DE | 1 | 2007 |
| Konstanz, DE | 1 | 1984 |