Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4298976 | Microphonograph record | Ronald D. Irvin, Steven Runyan | 1981-11-03 |
| 4198134 | Film cartridge | Werner W. Ciupke, Steven Runyan | 1980-04-15 |
| 4192295 | Bedside drainage bag | — | 1980-03-11 |
| 4185899 | Combination viewer and projector | Edwin E. Ewry, Werner E. Sandvoss, Werner W. Ciupke, Glenn E. Brown, William T. Link | 1980-01-29 |