Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5165069 | Method and system for non-invasively identifying the operational status of a VCR | James Joseph Vitt, Daozheng Lu | 1992-11-17 |
| 4723302 | Method and apparatus for determining channel reception of a receiver | Kenneth J. Frett | 1988-02-02 |