Issued Patents All Time
Showing 51–60 of 60 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5860168 | Dive mask | Frank Hermansen | 1999-01-19 |
| 5857509 | Bicycle tire lever | Frank Hermansen | 1999-01-12 |
| 5845635 | Snorkel with pivoting mouthpiece | Frank Hermansen | 1998-12-08 |
| 5778875 | First stage regulator and rotatable in-line valve | Michael V. Morgan | 1998-07-14 |
| 5735393 | Eyeglass retainer/cover | Chih-Cheng Shiue, Frank Hermansen, Jenny Shei | 1998-04-07 |
| D391284 | Dive mask having a flexible skirt | Frank Hermansen | 1998-02-24 |
| 5676529 | Compact manual air pump having selectable high volume and high pressure modes | Frank Hermansen | 1997-10-14 |
| 5671728 | Snorkel pump apparatus | Frank Hermansen | 1997-09-30 |
| 5503140 | Second stage demand regulator | Frank Hermansen | 1996-04-02 |
| 5343858 | Second stage demand breathing regulator | Frank Hermansen | 1994-09-06 |