Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876944 | Pneumatic limb control system | Rhett T. George, Jr., Zhenhai Chen | 1989-10-31 |
| 4831493 | Windshield moisture sensor | Harry S. Koontz, William E. Wagner, John Everhart, Glen E. Freeman, Harold E. Donley | 1989-05-16 |
| 4805070 | Capacitive coupled moisture sensor | Harry S. Koontz | 1989-02-14 |