Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6157804 | Acoustic transfer assist driver system | Robert Mead, Clifford K. Friend | 2000-12-05 |
| 5204730 | Transfer, detac polarity switching | Clifford K. Friend, Robert Mead | 1993-04-20 |