Inventor
Sharon G. Johnston
Inventor
Rochester, NY, US
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Cprimary
G03CPhotosensitive materials for photographic purposes70%
B23KSoldering or unsoldering10%
E21BEarth or rock drilling10%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%
PatentTitleYear
10,954,734Downhole tool with a propellant charge20217,029,837'Photographic film element containing an emulsion with dual peek green responsivity'20066,811,963'Color photographic material with improved sensitivity'20046,699,652'Color photographic material with improved sensitivity comprising a pyrazolotriazole coupler'20046,656,674'Ultrathin tabular grain silver halide emulsion with improved performance in multilayer photographic element'20036,514,683'Photographic element with improved sensitivity and improved keeping'20036,428,947'Multicolor photographic element with improved latent image keeping'20025,612,175'Epitaxially sensitized tabular grain emulsions exhibiting enhanced speed and contrast'1997Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1997–2006Patents assigned to EASTMAN KODAK CO (7)· patent assignee history
1997–2006Based in Rochester, NY, US· patent location history
2002–2003Based in Pittsford, NY, US· patent location history
2021Patents assigned to SPEX CORPORATE HOLDINGS LTD (1)· patent assignee history
2021Based in Aberdeenshire, GB· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| EASTMAN KODAK CO | 7 | 1997–2006 |
| SPEX CORPORATE HOLDINGS LTD | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Rochester, New York, US | 4 | 1997–2006 |
| Pittsford, New York, US | 3 | 2002–2003 |
| Aberdeenshire, GB | 1 | 2021 |