Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5260886 | Default denominator for fraction entry and display | — | 1993-11-09 |
| 5175700 | Method and apparatus for solving multiple equations | Eric L. Vogel | 1992-12-29 |
| 5155697 | Most precise fraction display method | — | 1992-10-13 |
| 5128887 | Numerical accuracy indicator for rounded numeric value display method | Mark A. Smith | 1992-07-07 |
| 5089980 | Double keystroke fraction entry and interface method | Bruce A. Stephens | 1992-02-18 |