Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5594937 | System for the transmission and reception of directional radio signals utilizing a gigahertz implosion concept | Milford G. Richey, Perry W. Haddon, Malcolm I. Ziegler | 1997-01-14 |
| 4282940 | Apparatus for perforating oil and gas wells | Winfield W. Salisbury | 1981-08-11 |
| 4199034 | Method and apparatus for perforating oil and gas wells | Winfield W. Salisbury | 1980-04-22 |