Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7173719 | Integrated raster image processor and electro-photographic engine controller | James G. Bearss, Eric R. Hansen | 2007-02-06 |
| 4348733 | Calculator with algebraic operating system | — | 1982-09-07 |
| 4208720 | Calculator with algebraic operating system | — | 1980-06-17 |