Inventor
Ulrich Kappler
Inventor
Langenfeld, DE
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds50%
C01BNon-metallic elements17%
C07DHeterocyclic compounds17%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients17%
PatentTitleYear
5,120,875'Process for the preparation of chlorine-substituted aromatic amines'19924,885,418'Process for removing metal halides from liquid organic water-immiscible substances'19894,350,573'Halogenated aromatic amines which are stable in color, and a process for their preparation'19824,142,048'Production of tris-(2-hydroxyaryl) esters of cyanuric acid'1979Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1979–1992Patents assigned to BAYER AG (4)· patent assignee history
1979Based in Cologne, DE· patent location history
1982Based in Leverkusen, DE· patent location history
1989–1992Based in Langenfeld, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BAYER AG | 4 | 1979–1992 |
Locations
| Location | Patents | Span |
|---|---|---|
| Langenfeld, DE | 2 | 1989–1992 |
| Leverkusen, DE | 1 | 1982 |
| Cologne, DE | 1 | 1979 |