Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5325873 | Tube placement verifier system | James P. Karbowski, James L. Tiefenthal, Ronald M. Isaac | 1994-07-05 |
| 5316024 | Tube placement verifier system | James P. Karbowski, James L. Tiefenthal, Ronald M. Isaac | 1994-05-31 |
| 4470015 | Metal detector system with undesirable target and mineralized ground discrimination | George C. Payne | 1984-09-04 |