Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4624130 | Method for determining borehole or cavity configuration through inert gas interface | Donald Faul, Donald W. Granger | 1986-11-25 |
| 4620439 | Method for determining borehole or cavity configuration through inert gas interface | Donald Faul, Donald W. Granger | 1986-11-04 |
| 4523453 | Method for determining borehole or cavity configuration through inert gas interface | Donald Faul, Donald W. Granger | 1985-06-18 |
| 4455869 | Method for determining borehole or cavity configuration through inert gas interface | Donald Faul, Donald W. Granger | 1984-06-26 |