Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9617837 | Hydraulic oil well pumping apparatus | Joel Lasseigne | 2017-04-11 |
| 8678082 | Hydraulic oil well pumping apparatus | Michael A. Fesi, Willard J. Lapeyrouse | 2014-03-25 |
| 8235107 | Hydraulic oil well pumping apparatus | Michael A. Fesi, Willard J. Lapeyrouse | 2012-08-07 |
| 7762321 | Hydraulic oil well pumping apparatus | Michael A. Fesi, Willard J. Lapeyrouse | 2010-07-27 |