Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6131365 | Wall unit structural system and method | — | 2000-10-17 |
| 5460106 | Method, apparatus and device for delivering and distributing a foam containing a soil additive into soil | Frank O. Martinez, Scott J. Zweep | 1995-10-24 |
| 5353885 | Rock bit | Michael Hooper | 1994-10-11 |
| 4793719 | Precision roller bearing rock bits | Gerard P. Erpenbeck, Michael Hooper | 1988-12-27 |