Walker; Grant W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Walker; Grant W..The latest application filed is for "horizontally-resilient golf tee mat".
- Walker; Grant W. - Sacramento CA
| Patent | Date |
|---|---|
| Horizontally-resilient golf tee mat Grant 4,913,442 - Walker April 3, 1 | 1990-04-03 |
| Pipe joint Grant 4,746,147 - Walker May 24, 1 | 1988-05-24 |
| Practice ball for golfers Grant 4,596,392 - Walker June 24, 1 | 1986-06-24 |
| Impact barrier for vehicles Grant 4,008,915 - Walker February 22, 1 | 1977-02-22 |
| Impact barrier and restraint Grant 3,982,734 - Walker September 28, 1 | 1976-09-28 |
| Tubular member and process of forming a tubular member Grant 3,973,596 - Walker August 10, 1 | 1976-08-10 |
| Shock Absorbing Structure Grant 3,768,781 - Walker , et al. October 30, 1 | 1973-10-30 |
| Liquid Shock Absorbing Buffer Grant 3,680,662 - Walker , et al. August 1, 1 | 1972-08-01 |
| Liquid Shock Absorbing Buffer Grant 3,674,115 - Young , et al. July 4, 1 | 1972-07-04 |
| Liquid Shock Absorbing Buffer Grant 3,672,657 - Young , et al. June 27, 1 | 1972-06-27 |
| Energy Absorbing Device Grant 3,666,055 - Walker , et al. May 30, 1 | 1972-05-30 |
| Energy Dissipating Construction For Trains Grant 3,602,151 - Walker , et al. August 31, 1 | 1971-08-31 |
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