Inventor
Thomas K. Spencer
Inventor
Lexena, KS, US
Overview
Patents· 3 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Dprimary
C07DHeterocyclic compounds25%
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments25%
G03GElectrography25%
G11BInformation storage based on relative movement between record carrier and transducer25%
PatentTitleYear
6,482,950'Squarylium compounds, and processes and intermediates for the synthesis of these compounds'20025,919,950'Squarylium compounds, and processes and intermediates for the synthesis of these compounds'19995,231,190'Squarylium compounds, and processes and intermediates for the synthesis of these compounds'1993Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1993–2002Patents assigned to POLAROID CORP (3)· patent assignee history
1993–2002Based in Lexena, KS, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| POLAROID CORP | 3 | 1993–2002 |
Locations
| Location | Patents | Span |
|---|---|---|
| Lexena, KS, US | 3 | 1993–2002 |