Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5267147 | Portable checklist system | Robert C. Harshaw | 1993-11-30 |
| 4970683 | Computerized checklist with predetermined sequences of sublists which automatically returns to skipped checklists | Robert C. Harshaw, James T. Doell, Dennis G. Keith | 1990-11-13 |