Inventor
Gerhard Kilpper
Inventor
Battenberg, 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 compounds56%
C07DHeterocyclic compounds22%
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments11%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
PatentTitleYear
5,342,950'Preparation of quinophthalone derivatives'19944,950,756'Preparation of 1-nitroanthraquinone-2-carboxylic acid'19904,421,931'Preparation of anthranilic acid amides'19834,419,519'Continuous preparation of phthalimide'19834,328,339'Continuous preparation of isatoic anhydride'19824,276,433'Continuous preparation of anthranilic acid'19814,233,459'Continuous manufacture of anthranilic acid'19804,012,305'Production of 1-methyl-3-phenylindans'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1994Patents assigned to BASF AG (8)· patent assignee history
1977Based in Mannheim, DE· patent location history
1980–1983Based in Battenberg, DE· patent location history
1983–1994Based in Carlsberg, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BASF AG | 8 | 1977–1994 |
Locations
| Location | Patents | Span |
|---|---|---|
| Battenberg, DE | 4 | 1980–1983 |
| Carlsberg, DE | 3 | 1983–1994 |
| Mannheim, DE | 1 | 1977 |