Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7127955 | Torque limiting handle | Mark L. Petroske | 2006-10-31 |
| 6345798 | Low-cost holder for labeling and displaying tools | Michael D. Blackston, Eric Bondhus, Mark L. Petroske | 2002-02-12 |
| 6128981 | Folding hand tool set | Michael D. Blackston, Barry Bondhus, Dennis A. Burda, Mark L. Petroske | 2000-10-10 |
| 5970828 | Folding hand tool set | Michael D. Blackston, Barry Bondhus, Dennis A. Burda, Mark L. Petroske | 1999-10-26 |
| 5791211 | Folding hand tool set | Michael D. Blackston, Barry Bondhus, Dennis A. Burda, Mark L. Petroske | 1998-08-11 |
| 4246811 | Ball head polygonal wrench | Fred L. Heim | 1981-01-27 |