Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5560017 | System with clock frequency controller responsive to interrupt independent of software routine and software loop repeatedly executing instruction to slow down system clock | David M. Barrett, Mary Letourneau, Patricia A. Martin | 1996-09-24 |
| 5260697 | Computer with separate display plane and user interface processor | David M. Barrett, Patricia A. Martin, Jonathan T. Huntington, II, Robert M. Douthart | 1993-11-09 |
| 5148155 | Computer with tablet input to standard programs | Patricia A. Martin, Jonathan T. Huntington, II, David M. Barrett, Jean R. Ward | 1992-09-15 |