Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4787463 | Method and apparatus for installment of underground utilities | Edward W. Geller, Mike Kirby, John E. Mercer, Tom O'Hanlon, Ken Theimer +1 more | 1988-11-29 |
| 4674579 | Method and apparatus for installment of underground utilities | Edward W. Geller, Mike Kirby, John E. Mercer, Tom O'Hanlon, Ken Theimer +1 more | 1987-06-23 |