Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6678237 | Dual layer optical storage medium having partially reflecting layer comprising amorphous selenium | Jathan D. Edwards, Mark A. Arps | 2004-01-13 |
| 6628603 | Dual layer optical storage medium having partially reflecting layer comprising antimony sulfide | Kam K. Kam, Mark A. Arps | 2003-09-30 |
| 5460853 | System and method for multilayer film production on tape substrate | Michael B. Hintz, Joseph H. Sexton, John W. Ulseth | 1995-10-24 |
| 5202883 | Digital key stystem architecture | Richard A. Hatherill, Bernard J. Trudel, Mark R. Coomber | 1993-04-13 |
| 4645015 | Powered impact instrument | — | 1987-02-24 |
| 4261434 | Fire escape device | — | 1981-04-14 |