Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4644393 | Means for monitoring people who are watching a television set | Peter Smith | 1987-02-17 |
| 4642685 | Storing data relating to television viewing | Lyn M. Roberts, Robert L. Shrier | 1987-02-10 |
| 4578700 | Apparatus for storing data relating to television viewing | Lyn M. Roberts, Robert L. Shrier | 1986-03-25 |
| 4577220 | Arrangement for detecting to which channel a television set is tuned | Peter Smith | 1986-03-18 |
| 4567511 | Transmitting and storing data relating to television viewing | Peter Smith | 1986-01-28 |