Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4692913 | Method and apparatus for reading a data record carrier | Donovan W. Hurlbut, Alan A. Jewer | 1987-09-08 |
| 4603414 | Apparatus for making a data record carrier | Ronald E. Bergsten, Alan A. Jewer | 1986-07-29 |
| 4571713 | Digital data record | Donovan H. Hurlbut, Alan A. Jewer | 1986-02-18 |
| 4416001 | Method and apparatus for optically reading digital data inscribed in an arcuate pattern on a data carrier | Alan A. Jewer, Donovan W. Hurlbut | 1983-11-15 |