Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5237281 | Ion drag air flow meter | Jackie R. Webster, David B. Chang | 1993-08-17 |
| 5235179 | Evanescent wave liquid level sensor with density compensation | David B. Chang, Victor Vali, Albert F. Lawrence | 1993-08-10 |
| 4987582 | X-ray fluorescence imaging of elements | Jackie R. Webster, David B. Chang, Norton L. Moise, Victor Vali | 1991-01-22 |
| 4808898 | Gripper assembly for robot arm | — | 1989-02-28 |