Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7293485 | Quick adjusting pliers | David P. Engvall, Jeffery L. Ditzler | 2007-11-13 |
| 7100480 | Quick adjusting pliers | David P. Engvall, Jeffery L. Ditzler | 2006-09-05 |
| 7089832 | Quick adjusting pliers | David P. Engvall, Jeffery L. Ditzler | 2006-08-15 |
| 7040201 | Quick adjusting pliers | David P. Engvall, Jeffery L. Ditzler | 2006-05-09 |
| 5351585 | Large capacity locking pliers | Terry Leseberg | 1994-10-04 |