| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | Canada | 3 | |
| #3 | WIPO (World Intellectual Property Organization) | 3 | |
| #4 | EPO (European Patent Office) | 2 | |
| #5 | Australia | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology |
| # | Technology | |
|---|---|---|
| #1 | Television | |
| #2 | Special information storage |
| # | Name | Total Patents |
|---|---|---|
| #1 | Leonard Eugene | 13 |
| #2 | Budai Karoly | 10 |
| #3 | Stubbs Graham S | 6 |
| #4 | Dolson William R | 6 |
| #5 | Perlman Bill | 6 |
| #6 | Lechner Bernard J | 3 |
| #7 | Buynak William J | 3 |
| #8 | Brown Robert W | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US5394470A | Horizontal pulse augmentation of a video signal | |
| CA2064107A1 | Method and apparatus for recovering a standard television signal from a modified signal | |
| CA2032922C | Anti-copying video signal processing | |
| US5003590A | Encoding an optical video disc to inhibit video tape recording | |
| US4914694A | Modifying a television signal to inhibit recording/reproduction |