Inventor
Rachel J. Hobson
Inventor
Great Dunmow, GB
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Cprimary
G03CPhotosensitive materials for photographic purposes20%
G03GElectrography20%
B41MPrinting, duplicating, marking, or copying processes10%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds10%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds10%
C08JWorking-up10%
G02BOptical elements, systems or apparatus10%
Y10TTechnical subjects covered by former us classification10%
PatentTitleYear
6,689,421'Method of preparing a microporous film, and imaging method'20046,140,004'Organophotoreceptors for electrophotography featuring novel charge transport compounds'20006,066,426'Organophotoreceptors for electrophotography featuring novel charge transport compounds'20005,773,207'Photographic emulsions'19985,604,084'Chemical sensitisation of silver halide emulsions'19975,223,593'Fluorine containing plastic optical fiber cores'1993Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1993Patents assigned to MINNESOTA MINING & MFG (1)· patent assignee history
1993–1997Based in Harlow, GB· patent location history
1997–2000Patents assigned to IMATION CORP (4)· patent assignee history
1998–2004Based in Great Dunmow, GB· patent location history
2004Patents assigned to KODAK POLYCHROME GRAPHICS LLC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| IMATION CORP | 4 | 1997–2000 |
| KODAK POLYCHROME GRAPHICS LLC | 1 | 2004 |
| MINNESOTA MINING & MFG | 1 | 1993 |
Locations
| Location | Patents | Span |
|---|---|---|
| Great Dunmow, GB | 4 | 1998–2004 |
| Harlow, GB | 2 | 1993–1997 |