Walker; Donald R.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Walker; Donald R..The latest application filed is for "rib protector".
- Walker; Donald R. - Ava MO
- Walker; Donald R. - Rolla MO
- Walker; Donald R. - Tulsa OK
| Patent | Date |
|---|---|
| Rib protector Grant 5,337,417 - Whiteside , et al. August 16, 1 | 1994-08-16 |
| Shock attenuation system Grant 4,558,470 - Mitchell , et al. December 17, 1 | 1985-12-17 |
| Shock attenuation system Grant 4,534,068 - Mitchell , et al. August 13, 1 | 1985-08-13 |
| Torsion spring wrench Grant 4,142,283 - Walker , et al. March 6, 1 | 1979-03-06 |
| SEC | 0001203647 | WALKER DONALD R |
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