Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885714 | Calculator having a user-accessible object stack for the uniform application of mathematical functions and logical operations to a multiplicity of object types | Gabe L. Eisenstein, Paul J. McClellan, Robert Miller, Charles M. Patton, William C. Wickes | 1989-12-05 |
| 4868745 | Data processing system and method for the direct and indirect execution of uniformly structured object types | Charles M. Patton, William C. Wickes | 1989-09-19 |
| 4821228 | Method and apparatus for computation stack recovery in a calculator | William C. Wickes | 1989-04-11 |