Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5231475 | Method and apparatus for generating video signal representing controllable color matte | David W. Ritter, Michael L. Richardson | 1993-07-27 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5231475 | Method and apparatus for generating video signal representing controllable color matte | David W. Ritter, Michael L. Richardson | 1993-07-27 |