Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4793813 | Computer-based education system | David L. Bitzer, Michael W. Walker, Clarence E. Kelley, Donald D. Pakey, Donald A. Lee | 1988-12-27 |
| 4633462 | Multiple access communication on a CATV reverse channel | Donald A. Lee, Donald L. Bitzer | 1986-12-30 |