Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4936139 | Down hole method for determination of formation properties | Thomas H. Zimmerman, Julian Pop | 1990-06-26 |
| 4860581 | Down hole tool for determination of formation properties | Thomas H. Zimmerman, Julian Pop | 1989-08-29 |