Inventor
Rudolf Fass
Inventor
Kelkheim, 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. pigments75%
C07CAcyclic or carbocyclic compounds13%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%
PatentTitleYear
4,916,215'Water-soluble disazo compounds containing substituted triazinyl radical, pyrazole-type groups, and a plurality of fiber-reactive sulfone-containing groups, suitable as dyestuffs'19904,730,038'Water-soluble disazo compounds of 1-amino-8-naphthal-3,6- or 4,6-disulfonic acid as bivalent coupling component, containing fiber-reactive groups suitable as dyestuffs'19884,622,390'Water-soluble disazo compounds containing an amino naphthol-disulfonic acid moiety as a coupling component and fibre-reactive groups'19864,485,041'Water-soluble metal free or copper triazino-bis-[hydroxy-naphthylamino]-disazo dyestuffs containing fiber reactive groups, and a process for dyeing or printing cellulose fibers'19844,378,312'Water-soluble azo dyestuffs'19834,323,497'Water-soluble disazo dyestuffs'1982Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1982–1990Patents assigned to HOECHST AG (6)· patent assignee history
1982–1990Based in Kelkheim, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HOECHST AG | 6 | 1982–1990 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kelkheim, DE | 6 | 1982–1990 |