Inventor
Dietrich Liebsch
Inventor
Leverkusen, DE
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds33%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds22%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry11%
C01BNon-metallic elements11%
C07DHeterocyclic compounds11%
C09DCoating compositions, e.g. paints, varnishes or lacquers11%
PatentTitleYear
5,268,509'Process for the preparation of an iron catalyst and a process for the preparation of primary amines by the hydrogenation of nitriles using said iron catalyst'19934,994,541'Process for the preparation of polyisocyanates containing uretdione and isocyanurate groups, the polyisocyanates obtained by this process and their use in two-component polyurethane coatings'19914,764,308'Process for the production of phosgene with simultaneous generation of steam'19884,419,295'Continuous process for the production of organic isocyanates'19833,976,622'Process for the production of polyisocyanates with a biuret structure'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1993Patents assigned to BAYER AG (5)· patent assignee history
1976–1993Based in Leverkusen, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BAYER AG | 5 | 1976–1993 |
Locations
| Location | Patents | Span |
|---|---|---|
| Leverkusen, DE | 5 | 1976–1993 |