Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7347403 | Ice screw having breakaway or flexing crank handle | William R. Belcourt | 2008-03-25 |
| 6810607 | Anti-balling system | Joseph Skrivan, Andrew McLean | 2004-11-02 |
| 5996235 | Ice axe | — | 1999-12-07 |
| 5937466 | Lugged ice axe head | Kenneth D. Stone | 1999-08-17 |
| 5878834 | Formed sheet metal carabiner gate | Hong Kyu Kwak, Frank C. Dolana | 1999-03-09 |
| 5768727 | Integrated modular ice axe head | — | 1998-06-23 |
| 5425176 | Handle for ice axe | John Bercaw, William R. Belcourt | 1995-06-20 |
| 5329675 | Carabiner with thumb grip | Andrew McLean, John Bercaw, Jonny Woodward | 1994-07-19 |
| D345688 | Carabiner | Andrew McLean, John Bercaw, Jonny Woodward | 1994-04-05 |