Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8240055 | Adaptive, ergonomic, multi-purpose hand-held tool with flexible drive shaft | — | 2012-08-14 |
| 6385781 | Adaptive, energy absorbing shoulder pad mounted head cage | Carl Martin Rose | 2002-05-14 |
| 5915819 | Adaptive, energy absorbing structure | — | 1999-06-29 |
| 5743029 | Break-away cleat assembly for athletic shoes | Andrew S. Walker | 1998-04-28 |
| 5682689 | Rotating cleats for athletic shoes | Andrew S. Walker | 1997-11-04 |
| 5617653 | Break-away cleat assembly for athletic shoe | Andrew S. Walker | 1997-04-08 |
| 5505012 | Directionally yieldable-cleat assembly | Andrew S. Walker | 1996-04-09 |
| 5377431 | Directionally yieldable cleat assembly | Andrew S. Walker | 1995-01-03 |
| 4566137 | Inflatable baffled liner for protective headgear and other protective equipment | — | 1986-01-28 |
| 4398306 | Chin strap safety attachment for protective headgear | — | 1983-08-16 |
| D268220 | Military helmet with visor | — | 1983-03-15 |
| 4375108 | Energy-absorbing insert for protective headgear | — | 1983-03-01 |
| D267287 | Pneumatic liner for protective headgear | — | 1982-12-21 |
| D266802 | Infant car seat liner | — | 1982-11-09 |
| D266711 | Police helmet | — | 1982-11-02 |
| D266627 | Protective helmet for athletes | — | 1982-10-26 |
| D266626 | Police helmet | — | 1982-10-26 |
| 4354283 | Headband assembly for protective headgear | — | 1982-10-19 |
| 4354284 | Protective liner for outdoor headgear | — | 1982-10-19 |
| D265520 | Youth hockey helmet | — | 1982-07-27 |