Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7246446 | Adjustable guide rail for hand tools | — | 2007-07-24 |
| 7131898 | Adjustable surface positioning guide for a rotary hand-held tool | John Kochanski | 2006-11-07 |
| 7089978 | Tool attachment system and router attachment and method incorporating same | Joe Karkosch, John Kochanski, Patrick J. Barkdoll | 2006-08-15 |
| 7029212 | Corner grout cutter guide | Patrick J. Barkdoll | 2006-04-18 |
| 6126134 | Collapsible sheet support apparatus | — | 2000-10-03 |