Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6061438 | Extension-in-use exclusion apparatus | Francis Shen, Anthony P. Shen | 2000-05-09 |
| 5481594 | Audio caller identification unit | Francis Shen, Anthony P. Shen, Eric Edwards, Gerrard B. Schmid | 1996-01-02 |