Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4528589 | Method and system for subscription television billing and access | John R. Martin | 1985-07-09 |
| 4484217 | Method and system for remote reporting, particularly for pay television billing | John Lull | 1984-11-20 |
| 4410911 | Multiple signal transmission method and system, particularly for television | Robert William Richard Field, Ronald R. Gerlach, Clarence D. Perr | 1983-10-18 |
| 4405942 | Method and system for secure transmission and reception of video information, particularly for television | John R. Martin | 1983-09-20 |
| 4398216 | Multiple signal transmission method and system, particularly for television | Robert William Richard Field, Ronald R. Gerlach, Clarence D. Perr | 1983-08-09 |
| 4225884 | Method and system for subscription television billing and access | John R. Martin | 1980-09-30 |
| D255200 | Mug | John F. Krieger | 1980-06-03 |