Inventor
Wilfried Hansmann
Inventor
Leverkusen, DE
Overview
Patents· 4 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. pigments60%
C07DHeterocyclic compounds20%
D06PDyeing or printing textiles20%
PatentTitleYear
6,060,591'Water-soluble fiber-reactive dyes, processes for their preparation, and their use'20006,046,311'Water-soluble fiber-reactive dyes, preparation thereof and use thereof'20005,712,394'Process for preparing 2,4,6-trichloropyrimidine'19985,498,700'Naphthylazonaphthol dyes which contain a 5-chloro-6-fluoropyrimidin-4-yl reactive group'1996Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1996–1998Patents assigned to BAYER AG (2)· patent assignee history
1996–2000Based in Leverkusen, DE· patent location history
2000Patents assigned to DYSTAR TEXTILFARBEN GMBH & CO (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BAYER AG | 2 | 1996–1998 |
| DYSTAR TEXTILFARBEN GMBH & CO | 2 | 2000 |
Locations
| Location | Patents | Span |
|---|---|---|
| Leverkusen, DE | 4 | 1996–2000 |