Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9873155 | Quick change tool bit holder for round shafts | — | 2018-01-23 |
| 8844940 | Dual Size tool-bit holder | — | 2014-09-30 |
| 8636287 | Automatic tool-bit holder | — | 2014-01-28 |
| 8292304 | Dual size tool-bit holder | — | 2012-10-23 |
| 7896355 | Dual size tool-bit holder | — | 2011-03-01 |
| 7147409 | Drill countersink assembly | — | 2006-12-12 |
| 6966562 | Multiple mode chuck | — | 2005-11-22 |
| 6588994 | Drill bit tail | — | 2003-07-08 |
| 6561523 | Automatic tool-bit holder | — | 2003-05-13 |
| 6457916 | Locking quick-change chuck assembly | — | 2002-10-01 |
| 6260857 | Quick-change three-jaw drill chuck | Thomas J. Wienhold | 2001-07-17 |
| 5823100 | Baking/cooling rack | Irene C. Kramer | 1998-10-20 |
| 5638809 | Collapsible multi-level baking rack assembly | — | 1997-06-17 |
| 5417527 | Quick change chuck assembly for tool bits | — | 1995-05-23 |
| 5013194 | Chuck assembly for tool bits | — | 1991-05-07 |
| 4900202 | Chuck assembly for tool bits | — | 1990-02-13 |