Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6157026 | Optical switch of the multiple push button type for producing a plurality of control signals | Karl Redmer | 2000-12-05 |
| 6061302 | Gimbal lock system for seismic sensors | Otis A. Johnston | 2000-05-09 |
| 5173291 | Film-forming emulsion containing iodine and methods of use | Chi-Ming Tseng | 1992-12-22 |
| 4978527 | Film-forming emulsion containing iodine and methods of use | Chi-Ming Tseng | 1990-12-18 |
| 4901738 | Laser shield | James H. C. Harper, Steven T. Link | 1990-02-20 |