Vandergrift; James A.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Vandergrift; James A..The latest application filed is for "downhill ski boot with dual liner".
- Vandergrift; James A. - Seattle WA
| Patent | Date |
|---|---|
| Downhill ski boot with dual liner Grant 6,226,898 - Trimble , et al. May 8, 2 | 2001-05-08 |
| Active piezoelectric damper for a snow ski or snowboard Grant 6,095,547 - Vandergrift , et al. August 1, 2 | 2000-08-01 |
| Piezoelectric golf club shaft Grant 6,048,276 - Vandergrift April 11, 2 | 2000-04-11 |
| Piezoelectric damper for a board such as a snow ski or snowboard Grant 5,775,715 - Vandergrift July 7, 1 | 1998-07-07 |
| SEC | 0001213329 | VANDERGRIFT JAMES A |
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