Inventor
Jack C. Chang
Inventor
Webster, NY, US
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Nprimary
G01NInvestigating or analysing materials by determining their chemical or physical properties18%
H04NPictorial communication, e.g. television18%
A61BDiagnosis9%
C09KMaterials for miscellaneous applications, not provided for elsewhere9%
C22FChanging the physical structure of non-ferrous metals and non-ferrous alloys9%
G03CPhotosensitive materials for photographic purposes9%
H05BElectric heating9%
H10KOrganic electric solid-state devices9%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%
PatentTitleYear
10,864,018Method for manufacturing medical linear member20206,389,159'Method for producing prints from digital image files scanned from film'20026,208,770'Digital colored corrected prints produced from colored film'20015,294,870'Organic electroluminescent multicolor image display device'19944,282,079'Planar glass ion-selective electrode'19814,214,968'Ion-selective electrode'19804,088,488'Photographic elements containing nitroxyl radical oxidants'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–2002Patents assigned to EASTMAN KODAK CO (6)· patent assignee history
1978–2002Based in Webster, NY, US· patent location history
1980–1994Based in Rochester, NY, US· patent location history
2020Patents assigned to SYNTEC CORP (1)· patent assignee history
2020Based in Logan, UT, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| EASTMAN KODAK CO | 6 | 1978–2002 |
| SYNTEC CORP | 1 | 2020 |
Locations
| Location | Patents | Span |
|---|---|---|
| Webster, New York, US | 4 | 1978–2002 |
| Rochester, New York, US | 2 | 1980–1994 |
| Logan, UT, US | 1 | 2020 |