Inventor
Dieter vor der Bruck
Inventor
Bonn, DE
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C09Bprimary
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments67%
C07DHeterocyclic compounds11%
D06PDyeing or printing textiles11%
D21HPulp compositions11%
PatentTitleYear
4,377,518'Azo dyestuffs derived from polycyclo-hetercyclic coupler components'19834,324,722'Water-soluble substituted aminocarbonyl monoazo dyestuffs'19824,324,723'Monoazo dyestuffs'19824,180,503'Acid disazo dyestuffs containing a substituted thiophene middle component'19794,124,581'Disazo dyestuffs containing a thiazole central component'19784,060,521'Benzene-azo-indole dyestuffs'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1983Patents assigned to BAYER AG (6)· patent assignee history
1977–1979Based in Cologne, DE· patent location history
1978–1983Based in Bonn, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BAYER AG | 6 | 1977–1983 |
Locations
| Location | Patents | Span |
|---|---|---|
| Bonn, DE | 4 | 1978–1983 |
| Cologne, DE | 2 | 1977–1979 |