Inventor
Felix Viro
Inventor
Apalachin, NY, US
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Cprimary
G03CPhotosensitive materials for photographic purposes80%
C07DHeterocyclic compounds20%
PatentTitleYear
4,252,894'Hydrophilic color coupler composition containing diepoxide'19814,066,457'Color developer for diffusion transfer'19784,036,643'Diffusion transfer color process using lactone or sultone ring containing lipophilic non-diffusing color formers which yield diffusing dyes'19773,989,529'Hydrophilic coupler solutions'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1981Patents assigned to GAF CORP (4)· patent assignee history
1976–1981Based in Apalachin, NY, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GAF CORP | 4 | 1976–1981 |
Locations
| Location | Patents | Span |
|---|---|---|
| Apalachin, New York, US | 4 | 1976–1981 |