Assignee
NUPRO CO
US·33 granted patents·1,292 citations·filing 1975–1994
Top patents by PatentIndex Score
33 records- 0196US5215286AHigh pressure diaphragm valveNUPRO CO·Filed 1992·Granted Jun 1, 1993·106 cites·5 claims
- 0295US4671490ADiaphragm valveNUPRO CO·Filed 1986·Granted Jun 9, 1987·79 cites·20 claims
- 0394US4262880APlug valveNUPRO CO·Filed 1979·Granted Apr 21, 1981·67 cites·10 claims
- 0493US4687017AInverted bellows valveNUPRO CO·Filed 1986·Granted Aug 18, 1987·94 cites·19 claims
- 0590US5131627ADiaphragm valveNUPRO CO·Filed 1990·Granted Jul 21, 1992·67 cites·8 claims
- 0690US5033505APressure regulator and method of assembling sameNUPRO CO·Filed 1989·Granted Jul 23, 1991·57 cites·25 claims
- 0789US5335691AHigh pressure diaphragm valveNUPRO CO·Filed 1993·Granted Aug 9, 1994·65 cites·7 claims
- 0888US5462081AExcess flow valveNUPRO CO·Filed 1994·Granted Oct 31, 1995·67 cites·15 claims
- 0987US4750709ADiaphragm valveNUPRO CO·Filed 1987·Granted Jun 14, 1988·53 cites·7 claims
- 1086US5253671AHigh pressure diaphragm valveNUPRO CO·Filed 1992·Granted Oct 19, 1993·48 cites·8 claims
- 1185US4606374AValveNUPRO CO·Filed 1983·Granted Aug 19, 1986·42 cites·15 claims
- 1284US4530373APressure relief valveNUPRO CO·Filed 1983·Granted Jul 23, 1985·43 cites·16 claims
- 1383US4637430ACheck valveNUPRO CO·Filed 1985·Granted Jan 20, 1987·42 cites·22 claims
- 1477US4840191AInflatable valveNUPRO CO·Filed 1988·Granted Jun 20, 1989·31 cites·17 claims
- 1577US4732363ADiaphragm valveNUPRO CO·Filed 1987·Granted Mar 22, 1988·32 cites·6 claims
- 1676US4634099AHigh pressure inverted bellows valveNUPRO CO·Filed 1985·Granted Jan 6, 1987·35 cites·15 claims
- 1773US4964423ACheck valveNUPRO CO·Filed 1989·Granted Oct 23, 1990·27 cites·20 claims
- 1873US4911412AValves with improved actuatorsNUPRO CO·Filed 1989·Granted Mar 27, 1990·28 cites·12 claims
- 1973US4790348ALow pressure relief valveNUPRO CO·Filed 1987·Granted Dec 13, 1988·29 cites·5 claims
- 2072US4028254AFluid filterNUPRO CO·Filed 1975·Granted Jun 7, 1977·29 cites·25 claims
- 2171US4263140AIn-line fluid filterNUPRO CO·Filed 1979·Granted Apr 21, 1981·29 cites·2 claims
- 2269US4856555ACheck valveNUPRO CO·Filed 1988·Granted Aug 15, 1989·24 cites·20 claims
- 2367US4684106AValveNUPRO CO·Filed 1986·Granted Aug 4, 1987·25 cites·11 claims
- 2465US4917357ADiaphragm valveNUPRO CO·Filed 1989·Granted Apr 17, 1990·21 cites·14 claims
- 2564US4687180AMetering valveNUPRO CO·Filed 1986·Granted Aug 18, 1987·19 cites·10 claims
- 2663US4018686AFluid strainer elementNUPRO CO·Filed 1975·Granted Apr 19, 1977·21 cites·14 claims
- 2761US4968003ADiaphragm valveNUPRO CO·Filed 1989·Granted Nov 6, 1990·20 cites·10 claims
- 2859US4659061ASeal ring shutoff stem tipNUPRO CO·Filed 1985·Granted Apr 21, 1987·20 cites·19 claims
- 2958US4915353ADiaphragm valveNUPRO CO·Filed 1988·Granted Apr 10, 1990·19 cites·10 claims
- 3058US4028248AFluid filterNUPRO CO·Filed 1975·Granted Jun 7, 1977·18 cites·9 claims
- 3150US4687181AMetering valveNUPRO CO·Filed 1986·Granted Aug 18, 1987·14 cites·22 claims
- 3247US4659060AStem tip sealNUPRO CO·Filed 1986·Granted Apr 21, 1987·13 cites·12 claims
- 3333US5601713AFilter systems and apparatusNUPRO CO·Filed 1994·Granted Feb 11, 1997·8 cites·10 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →