Inventor
Fritz Zanker
Inventor
Worms, 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 compounds50%
C07DHeterocyclic compounds33%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests17%
PatentTitleYear
4,810,799'Preparation of N-(3,5-dichlorophenyl)oxazolidine-2,4-diones'19894,504,363'Preparation of cis-2,6-dimethylmorpholine'19854,162,263'Manufacture of aliphatic or cycloaliphatic isocyanates'19794,069,238'Manufacture of aliphatic isocyanates'19783,991,094'Manufacture of alkyl isocyanates'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1989Patents assigned to BASF AG (5)· patent assignee history
1976–1989Based in Worms, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BASF AG | 5 | 1976–1989 |
Locations
| Location | Patents | Span |
|---|---|---|
| Worms, DE | 5 | 1976–1989 |