Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6262945 | Seismic signal coupling device and method | Michael Maples, Yves Delassis, Julien Meunier | 2001-07-17 |
| 6031789 | Magnetic drive subassembly in a depth control device | Keith Broussard, Louis W. Erath | 2000-02-29 |
| 5949214 | Rechargeable battery pack | Keith Broussard | 1999-09-07 |