Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5340347 | Flying toy | — | 1994-08-23 |
| D284375 | Tape drive system or the like | Joseph G. Bullock, David M. Gresham, Ted F. Kelley, Jr., Leroy H. Moser, Kenneth L. White +2 more | 1986-06-24 |
| D282747 | Tape drive | David M. Gresham, Ted F. Kelley, Jr., Roland Zapfe | 1986-02-25 |
| D277851 | Tape cartridge or similar article | David M. Gresham, Paul Y. Hu, Maurice E. Richard, Roland Zapfe | 1985-03-05 |