Inventor · disambiguated record
Erwin W. Parr
Also filed as: PARR ERWIN W
7 granted patents·208 citations·filing 1975–1990
87Inventor score
Top patents by PatentIndex Score
7 records- 0190US5078167AFuel filter and pressure regulator system apparatusPARR MFG INC·Filed 1990·Granted Jan 7, 1992·98 cites·24 claims
- 0280US3996951ASafety roll over valvePARR MFG INC·Filed 1975·Granted Dec 14, 1976·34 cites·2 claims
- 0366US4633901APressure regulatorPARR MFG INC·Filed 1986·Granted Jan 6, 1987·19 cites·2 claims
- 0456US4310018ACheck valve assemblyPARR MANUFACTURING COMPANY·Filed 1980·Granted Jan 12, 1982·19 cites·1 claims
- 0554US4416399AAerosol canisterZIPHRON INC·Filed 1981·Granted Nov 22, 1983·24 cites·1 claims
- 0652USD272045SPressurized dispensing containerZIPHRON INC·Filed 1981·Granted Jan 3, 1984·6 cites·1 claims
- 0739US4194589AValvePARR ERWIN W·Filed 1978·Granted Mar 25, 1980·8 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →