Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D347624 | Card cage enclosure | William F. McCarthy, Kenneth R. Palumbo, Robert D. Hellweg, Jr., Colin E. Brench, Daniel M. Snow +3 more | 1994-06-07 |
| 4537067 | Inertial borehole survey system | Harper E. Sharp, Leo Spiegel, Elmer J. Frey, John R. Howatt, Gary E. Walker | 1985-08-27 |
| 4454756 | Inertial borehole survey system | Harper E. Sharp, Leo Spiegel, Elmer J. Frey, John R. Howatt, Gary E. Walker | 1984-06-19 |
| 4414784 | Greenhouse structure | — | 1983-11-15 |