Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4728688 | Perfect binding | Richard E. Tizzard | 1988-03-01 |
| 4484178 | Digital-to-analog converter | Jeffrey L. Lovgren, John T. Trnka | 1984-11-20 |
| 4264807 | Counter including two 2 bit counter segments connected in cascade each counting in Gray code | David N. Moen | 1981-04-28 |