Inventor
Carl G. Powell
Inventor
Putnam Valley, NY, US
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus38%
G09GArrangements or circuits for control of indicating devices using static means to present variable information25%
B41BMachines or accessories for making, setting, or distributing type13%
G06KGraphical data reading13%
Y10TTechnical subjects covered by former us classification13%
PatentTitleYear
8,289,231'Compact optical system and packaging for head mounted display'20126,747,611'Compact optical system and packaging for head mounted display'20045,254,982'Error propagated image halftoning with time-varying phase shift'19934,286,329'Complex character generator'19813,967,877'Coupler for coupling optical energy transmitted by optical fiber to optical waveguide and method of manufacture'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–2012Patents assigned to IBM (5)· patent assignee history
1976Based in Yorktown Heights, NY, US· patent location history
1981–2012Based in Putnam Valley, NY, US· patent location history
2012Patents assigned to BUDD RUSSELL A (1)· patent assignee history
2012Patents assigned to DOVE DEREK B (1)· patent assignee history
2012Patents assigned to LOVAS ISTVAN (1)· patent assignee history
2012Patents assigned to OLYHA JR ROBERT S (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| IBM | 5 | 1976–2012 |
| BUDD RUSSELL A | 1 | 2012 |
| DOVE DEREK B | 1 | 2012 |
| LOVAS ISTVAN | 1 | 2012 |
| OLYHA JR ROBERT S | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Putnam Valley, New York, US | 4 | 1981–2012 |
| Yorktown Heights, New York, US | 1 | 1976 |