Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D403572 | Handle operated locking mechanism for a door or window | — | 1999-01-05 |
| 5522514 | Modular stacking shelves for umbrella tables | — | 1996-06-04 |
| 5297269 | Cache coherency protocol for multi processor computer system | Darrel D. Donaldson, Mark N. Howard, David A. Orbits, John M. Parchem, Douglas D. Williams | 1994-03-22 |
| 5207490 | Safety latch for the lid of a lift-top cabinet | Melvin Kaspar | 1993-05-04 |
| 5116274 | Refrigerator display cabinet with thermally insulated pivotable window pane | Paul J. Artwohl | 1992-05-26 |
| 4698509 | High speed pattern generator for electron beam lithography | William Wells, Richard M. DeLuca, Eric D. Burwen | 1987-10-06 |
| 4289215 | Detachable step | — | 1981-09-15 |