Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D439815 | Dial indicator torque wrench | Brian Cutler, Tor Petterson, Charles P. Davis, Gary Keefe | 2001-04-03 |
| D421812 | Flashlight | James U. Neyer, Tor Petterson, Zoltan Pavlakovich, Charles P. Davis | 2000-03-21 |