Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884223 | Dynamic force measurement system | Lloyd D. Ingle, James W. Knutti | 1989-11-28 |
| 4861420 | Method of making a semiconductor transducer | James W. Knutti, Kurt E. Petersen, Carl R. Kowalski | 1989-08-29 |