Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5316868 | Dual battery switch circuit | John R. Pierson | 1994-05-31 |
| 5314905 | Pyropheophorbides conjugates and their use in photodynamic therapy | Ravindra K. Pandey | 1994-05-24 |
| 5284720 | Vent cap with electrolyte drain and explosion attenuation capabilities | David A. Thuerk, Debra L. Smith, Randy K. Hulsebus | 1994-02-08 |