Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4691771 | Recovery of oil by in-situ combustion followed by in-situ hydrogenation | Charles H. Ware | 1987-09-08 |
| 4597441 | Recovery of oil by in situ hydrogenation | Charles H. Ware, Joseph C. Allen | 1986-07-01 |
| 4409786 | Wood burning system and method | Joseph T. Hamrick | 1983-10-18 |
| 4372389 | Downhole water pump and method of use | Joseph T. Hamrick | 1983-02-08 |
| 4304103 | Heat pump operated by wind or other power means | Joseph T. Hamrick | 1981-12-08 |
| 4199024 | Multistage gas generator | Joseph T. Hamrick | 1980-04-22 |