Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6925315 | Telephone handset with thumb-operated tactile keypad | — | 2005-08-02 |
| D487440 | Cell phone | — | 2004-03-09 |
| D459712 | Cell phone | — | 2002-07-02 |
| 5671912 | Method & apparatus for providing low speed safety braking for a hoist system | Roger A. Johnson | 1997-09-30 |