Inventor
Karlheinz Keller
Inventor
Bettingen, CH
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
D06Pprimary
D06PDyeing or printing textiles38%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests38%
B60JWindows, windscreens, non-fixed roofs, doors, or similar devices for vehicles13%
G03DApparatus for processing exposed photographic materials13%
PatentTitleYear
7,735,264'Motor vehicle door'20104,399,212'Method of processing an exposed photographic material and processing band for carrying out the method'19834,277,247'Process for dyeing pre-cleaned cellulose fiber material'19814,252,534'Dyeing assistants and their use in dyeing synthetic fibre material'19814,066,395'Process for dyeing or printing aromatic polyamide fibres'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–1981Patents assigned to CIBA GEIGY CORP (3)· patent assignee history
1978Based in Riehen, CH· patent location history
1981Based in Bettingen, CH· patent location history
1983Patents assigned to AGFA GEVAERT AG (1)· patent assignee history
1983Based in Bergisch Gladbach, DE· patent location history
2010Patents assigned to PORSCHE AG (1)· patent assignee history
2010Based in Pforzheim, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CIBA GEIGY CORP | 3 | 1978–1981 |
| AGFA GEVAERT AG | 1 | 1983 |
| PORSCHE AG | 1 | 2010 |
Locations
| Location | Patents | Span |
|---|---|---|
| Bettingen, CH | 2 | 1981 |
| Pforzheim, DE | 1 | 2010 |
| Bergisch Gladbach, DE | 1 | 1983 |
| Riehen, CH | 1 | 1978 |