Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4961798 | Sleeve applicator assembly for pipe joints | Milburn L. Hart | 1990-10-09 |
| 4777649 | Acoustic feedback control of microphone positioning and speaking volume | Wilson B. Quan | 1988-10-11 |
| 4595607 | Combined induction heating and coating system for pipe weld joints | John W. Betteridge, Milburn L. Hart, Gregory H. Carlson | 1986-06-17 |