Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12162120 | Socket drive improvement | Daniel M. Eggert, Christopher D. Thompson, Jeffrey M. Arendt | 2024-12-10 |
| 11806843 | Socket drive improvement | Daniel M. Eggert, Christopher D. Thompson, Jeffrey M. Arendt | 2023-11-07 |
| 5485769 | Square drive adapter | Gerald A. Wridt | 1996-01-23 |
| 5238300 | Retractable step and tool cabinet incorporating same | George R. Slivon, Steven R. Wente | 1993-08-24 |
| 5218891 | Double-ended reversible box wrench with 71/2 degree swing clearance | William T. Pagac | 1993-06-15 |
| 5038869 | Fatigue-resistant spindle end | — | 1991-08-13 |
| 4794828 | Quick release mechanism for ratchet wrench | — | 1989-01-03 |
| 4776244 | Open-end wrench | Paul Lemens | 1988-10-11 |
| 4643030 | Torque measuring apparatus | Thomas P. Becker, Donald D. Grover, Christopher B. Stout, Glenn A. Kaufman | 1987-02-17 |
| 4627761 | Retainer | Norbert J. Kot | 1986-12-09 |
| 4506546 | Adapter for converting luminosity signals into inductive signals | Christopher B. Stout, Donald D. Grover, Thomas P. Becker | 1985-03-26 |
| 4469952 | Adapter for diesel-engine-timing meter | Thomas P. Becker, Donald D. Grover | 1984-09-04 |
| 4441021 | Luminosity probe for diesel engine timing apparatus | Jerome A. Thompson, Donald D. Grover, Christopher B. Stout, Thomas P. Becker | 1984-04-03 |
| 4402222 | Bolt load determining apparatus | Donald D. Grover, Christopher B. Stout, Thomas P. Becker, Glenn A. Kaufman, Norbert J. Kot | 1983-09-06 |
| 4373384 | Diesel engine timing apparatus | Jerome A. Thompson, Donald D. Grover, Christopher B. Stout, Thomas P. Becker, Glenn A. Kaufman | 1983-02-15 |
| D256980 | Impact wrench | Edward H. Adams | 1980-09-23 |