Inventor · disambiguated record
Warren E. Perkins
Also filed as: PERKINS WARREN E
13 granted patents·563 citations·filing 1983–1996
94Inventor score
Top patents by PatentIndex Score
13 records- 0178USD287050SPortable oxygen therapy unitCRYO SUB 2 CORP·Filed 1983·Granted Dec 2, 1986·18 cites·1 claims
- 0271US5370112AMethod and means for powering portable oxygen supply systemsDEVILBISS HEALTH CARE INC·Filed 1993·Granted Dec 6, 1994·136 cites·14 claims
- 0371USD287051SPortable oxygen therapy unitCRYO SUB 2 CORP·Filed 1983·Granted Dec 2, 1986·13 cites·1 claims
- 0469US5005570AMethod and means for dispensing respirating gases by effecting a known displacementPERKINS WARREN E·Filed 1989·Granted Apr 9, 1991·90 cites·14 claims
- 0565US4832014AMethod and means for dispensing two respirating gases by effecting a known displacementPERKINS WARREN E·Filed 1987·Granted May 23, 1989·79 cites·17 claims
- 0664US5672368ABeverage bag and method of useFiled 1996·Granted Sep 30, 1997·35 cites·17 claims
- 0757US4705034AMethod and means for dispensing respirating gases by effecting a known displacementPERKINS WARREN E·Filed 1985·Granted Nov 10, 1987·76 cites·12 claims
- 0846US4570819AFill means for cryogenic flasksCRYO CORP·Filed 1983·Granted Feb 18, 1986·12 cites·12 claims
- 0942US4541276AContents gageCRYO2 CORP·Filed 1983·Granted Sep 17, 1985·8 cites·26 claims
- 1042US4462223AMethod and means for preventing coupling freezingCRYO2 CORP·Filed 1983·Granted Jul 31, 1984·8 cites·28 claims
- 1141US5038770AFail-safe systems for respirating gas delivery devicesPERKINS WARREN E·Filed 1989·Granted Aug 13, 1991·32 cites·32 claims
- 1241US4932401ATwo-gas variable ratio, variable dose, metering system and method of usePERKINS WARREN E·Filed 1988·Granted Jun 12, 1990·32 cites·23 claims
- 1340US4873971AMethod and means for dispensing respirating gases by effecting a known displacementPERKINS WARREN E·Filed 1987·Granted Oct 17, 1989·24 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →