Parr; Erwin W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Parr; Erwin W..The latest application filed is for "fuel filter and pressure regulator system apparatus".
- Parr; Erwin W. - Des Moines IA
| Patent | Date |
|---|---|
| Fuel filter and pressure regulator system apparatus Grant 5,078,167 - Brandt , et al. January 7, 1 | 1992-01-07 |
| Pressure regulator Grant 4,633,901 - Brandt , et al. January 6, 1 | 1987-01-06 |
| Aerosol canister Grant 4,416,399 - Parr , et al. November 22, 1 | 1983-11-22 |
| Check valve assembly Grant 4,310,018 - Parr , et al. January 12, 1 | 1982-01-12 |
| Safety roll over valve Grant 3,996,951 - Parr , et al. December 14, 1 | 1976-12-14 |
| Dual Flow Fluid Filter Grant 3,856,683 - Parr December 24, 1 | 1974-12-24 |
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