Inventor
Theodore Frederick Simpson
Inventor
Lancaster, PA, US
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Jprimary
H01JElectric discharge tubes or discharge lamps38%
H04NPictorial communication, e.g. television38%
G01RMeasuring electric variables13%
G09GArrangements or circuits for control of indicating devices using static means to present variable information13%
PatentTitleYear
6,809,776'Control of video level by region and content of information displayed'20046,037,926'Emulation of computer monitor in a wide screen television'20005,730,887'Display apparatus having enhanced resolution shadow mask and method of making same'19985,534,746'Color picture tube having shadow mask with improved aperture spacing'19964,122,485'Method and apparatus for simulating magnetic environment of television receivers'19784,001,877'Method of measuring color purity tolerance of a color display tube'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1978Patents assigned to RCA CORP (2)· patent assignee history
1977–2004Based in Lancaster, PA, US· patent location history
1996–2000Patents assigned to THOMSON CONSUMER ELECTRONICS (3)· patent assignee history
2004Patents assigned to THOMSON LICENSING SA (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| THOMSON CONSUMER ELECTRONICS | 3 | 1996–2000 |
| RCA CORP | 2 | 1977–1978 |
| THOMSON LICENSING SA | 1 | 2004 |
Locations
| Location | Patents | Span |
|---|---|---|
| Lancaster, Pennsylvania, US | 6 | 1977–2004 |