Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11585370 | Pin lock carabiner | — | 2023-02-21 |
| 8621728 | Locking carabiner | — | 2014-01-07 |
| 7992267 | Snap lock carabiner | — | 2011-08-09 |
| 7963366 | Split tube belay device | — | 2011-06-21 |
| 7909030 | Elliptical purge valve for snorkels | — | 2011-03-22 |
| 7077127 | Flip top valve for dry snorkels | — | 2006-07-18 |
| 6904910 | Flip top valve for dry snorkels | — | 2005-06-14 |
| 6371108 | Dryest snorkel | — | 2002-04-16 |
| 6321745 | Folding snorkel | Autumn Christianson | 2001-11-27 |
| 6042069 | Expanding climbing aid | — | 2000-03-28 |
| 5868129 | Snorkel with pump | — | 1999-02-09 |
| 5657746 | Snorkel with automatic purge | — | 1997-08-19 |
| 5251618 | Regulator second stage for scuba | — | 1993-10-12 |
| 5092324 | Snorkel for skin divers | — | 1992-03-03 |
| 5035238 | Regulator second stage for scuba | — | 1991-07-30 |
| 4879995 | Snorkel for skin divers | — | 1989-11-14 |
| 4877022 | Skin diving snorkel | — | 1989-10-31 |
| 4872453 | Snorkel | — | 1989-10-10 |
| 4862884 | Regulator second stage for scuba | — | 1989-09-05 |
| 4643377 | Mechanically expanding climbing aid | — | 1987-02-17 |
| 4603833 | Inlet valve for breathing apparatus second stage regulators | — | 1986-08-05 |
| 4574797 | Diaphragm and exhaust valve for second stage regulator | — | 1986-03-11 |
| 4565370 | Foot holding device for hanging upside-down | — | 1986-01-21 |
| 4503852 | Pilot controlled regulator second stage | — | 1985-03-12 |
| 4386624 | Pilot controlled regulator second stage | — | 1983-06-07 |