Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5419361 | Fluid pressure actuated flow control valve | Guy A. Jang, Ronald A. Johnsen | 1995-05-30 |
| 5392807 | Fluid pressure actuated flow control valve | Guy A. Jang, Ronald A. Johnsen | 1995-02-28 |