Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6025986 | Retractable palmrest for keyboard-equipped electronic products | Donald F. Grube | 2000-02-15 |
| 5995025 | Folding keyboard with sliding segments for electronic products | Donald F. Grube | 1999-11-30 |
| 5982613 | Open-surfaced receptacle in an electronic product for a removable electronic module | Donald F. Grube | 1999-11-09 |
| 4964011 | Voltage transient protection circuit | — | 1990-10-16 |