Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8839523 | Safety knife | Peter Marshall | 2014-09-23 |
| D655995 | Safety knife | — | 2012-03-20 |
| D655996 | Safety knife | — | 2012-03-20 |
| 7958639 | Knife | — | 2011-06-14 |
| 7774943 | Knife | — | 2010-08-17 |
| D593839 | Knife | — | 2009-06-09 |
| D590687 | Knife | — | 2009-04-21 |
| D540647 | Safety knife | — | 2007-04-17 |
| 6473974 | Knives | — | 2002-11-05 |
| 6453559 | Safety knife | Peter Marshall | 2002-09-24 |
| 6195896 | Safety knife | — | 2001-03-06 |
| 5768787 | Knives with slots | — | 1998-06-23 |
| 5046253 | Knives | — | 1991-09-10 |