Inventor
Heinz Wiesen
Inventor
Euskirchen, DE
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Cprimary
G03CPhotosensitive materials for photographic purposes71%
C07DHeterocyclic compounds14%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests14%
PatentTitleYear
6,890,707'Color photographic print material'20056,806,042'Color photographic print material'20046,783,924'Colour photographic silver halide material'20046,689,552'Color photographic silver halide material'20046,548,238'Color photographic recording material'20036,379,879'Color photographic silver halide material'20026,297,385'Acetanilide couplers'20016,242,169'Color photographic material'20016,218,097'Color photographic silver halide material'20014,873,338'Process for the preparation of 2-amino-5-acylamino phenols and starting compounds suitable therefor'19894,855,222'Color photographic recording material'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989Patents assigned to AGFA GEVAERT AG (2)· patent assignee history
1989–2004Based in Euskirchen, DE· patent location history
2001–2005Patents assigned to AGFA GEVAERT (9)· patent assignee history
2004–2005Based in Kieselweg, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| AGFA GEVAERT | 9 | 2001–2005 |
| AGFA GEVAERT AG | 2 | 1989 |
Locations
| Location | Patents | Span |
|---|---|---|
| Euskirchen, DE | 8 | 1989–2004 |
| Kieselweg, DE | 3 | 2004–2005 |