Inventor
Gunter Streicher
Inventor
Weil am Rhein, DE
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C14Cprimary
C14CChemical treatment of hides, skins or leather, e.g. tanning, impregnating, finishing60%
D06PDyeing or printing textiles20%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%
PatentTitleYear
6,251,414'Aqueous formulation for pretanning raw hides'20015,427,594'Process for pickling raw hides'19955,360,453'Process for pickling and pretanning raw hides'19945,007,941'Process for dyeing leather: aqueous bath containing mixture of carbon black and acid dye, direct dye or metal complex dye'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991–1995Patents assigned to CIBA GEIGY CORP (3)· patent assignee history
1991–2001Based in Weil am Rhein, DE· patent location history
2001Patents assigned to TFL LEDERTECHNIK GMBH & CO KG (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CIBA GEIGY CORP | 3 | 1991–1995 |
| TFL LEDERTECHNIK GMBH & CO KG | 1 | 2001 |
Locations
| Location | Patents | Span |
|---|---|---|
| Weil am Rhein, DE | 4 | 1991–2001 |