Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4837579 | Pulse radar threshold generator | William M. Pease | 1989-06-06 |
| 4814050 | Estimation and control of alumina concentration in hall cells | William D. McGraw, Kevin G. Christian, Gene S. Miller, Christopher M. Seaman, Robert L. Kozarek | 1989-03-21 |