Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5959687 | System providing freeze of closed captioning data | Robert Lawrence O'Brien | 1999-09-28 |
| 5640502 | Bit-mapped on-screen-display device for a television receiver | Michael Dwayne Knox, David J. Duffield, Paul D. Filliman | 1997-06-17 |
| 5543857 | Graphical menu for a television receiver | Keith Reynolds Wehmeyer, Robert Joseph Logan, Robert Howard Miller, Sheila R. Augaitis | 1996-08-06 |
| 5386247 | Video display having progressively dimmed video images and constant brightness auxiliary images | Kirk E. Shafer, David J. Duffield | 1995-01-31 |
| 5353215 | Tracking run/standby power supplies | William John Testin | 1994-10-04 |