Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7344338 | Pipeline ballast and method of use | Bradley C. Willis, W. Brent Willis | 2008-03-18 |
| 5814230 | Apparatus and method for separation of solids from liquid | Bradley C. Willis, W. Brent Willis | 1998-09-29 |