Assignee
MAC VALVES INC
US·69 granted patents·1 pending application·1,138 citations·filing 1975–2024
Top patents by PatentIndex Score
70 records- 0196US11248715B1Proportional solenoid valveMAC VALVES INC·Filed 2020·Granted Feb 15, 2022·7 cites·21 claims
- 0294US8783653B2Multi-port modular valve with snap-in seatMAC VALVES INC·Filed 2012·Granted Jul 22, 2014·21 cites·24 claims
- 0394US4574844AFour-way poppet valveMAC VALVES INC·Filed 1984·Granted Mar 11, 1986·77 cites·8 claims
- 0493US9074699B2Multi-port normally open modular valve with thread-in seatMAC VALVES INC·Filed 2012·Granted Jul 7, 2015·16 cites·25 claims
- 0592US4195552APressure reducer and flow control valveMAC VALVES INC·Filed 1976·Granted Apr 1, 1980·39 cites·41 claims
- 0690US6668861B2Poppet valve having an improved valve seatMAC VALVES INC·Filed 2002·Granted Dec 30, 2003·40 cites·12 claims
- 0790US4298027AThree-way normally closed pilot valveMAC VALVES INC·Filed 1979·Granted Nov 3, 1981·37 cites·2 claims
- 0889US9022069B2Solenoid operated valve with constant bleed portMAC VALVES INC·Filed 2013·Granted May 5, 2015·11 cites·21 claims
- 0988US10473229B2Diaphragm valveMAC VALVES INC·Filed 2017·Granted Nov 12, 2019·6 cites·20 claims
- 1088US4267862ADirectional control valve with flow path through valve spoolMAC VALVES INC·Filed 1979·Granted May 19, 1981·52 cites·11 claims
- 1188US4257572AValve with internal accumulator and check valveMAC VALVES INC·Filed 1979·Granted Mar 24, 1981·40 cites·8 claims
- 1287US11976734B2Proportional flow control valveMAC VALVES INC·Filed 2022·Granted May 7, 2024·2 cites·16 claims
- 1386US9395010B2Multi-port modular valve with snap-in seatMAC VALVES INC·Filed 2014·Granted Jul 19, 2016·6 cites·24 claims
- 1486US4485846AFour-way valve with integral flow controls, common exhaust, and cartridge type pilot valveMAC VALVES INC·Filed 1982·Granted Dec 4, 1984·44 cites·10 claims
- 1585US7735518B2Valve assembly with dual actuation solenoidsMAC VALVES INC·Filed 2007·Granted Jun 15, 2010·15 cites·18 claims
- 1684US10774943B2Modular valve with O-ring valve setMAC VALVES INC·Filed 2018·Granted Sep 15, 2020·4 cites·20 claims
- 1784US10753498B2Flow-through liquid valveMAC VALVES INC·Filed 2018·Granted Aug 25, 2020·2 cites·16 claims
- 1884US4880033APoppet valveMAC VALVES INC·Filed 1988·Granted Nov 14, 1989·42 cites·2 claims
- 1984US4770210AValve manifold stacking baseMAC VALVES INC·Filed 1987·Granted Sep 13, 1988·45 cites·11 claims
- 2083US6129115ASelf-latching solenoid valve assemblyMAC VALVES INC·Filed 1999·Granted Oct 10, 2000·44 cites·16 claims
- 2183US4100519AAlignment means for a moveable pole-plunger assemblyMAC VALVES INC·Filed 1975·Granted Jul 11, 1978·26 cites·15 claims
- 2282US6192937B1Pilot operated pneumatic valveMAC VALVES INC·Filed 1999·Granted Feb 27, 2001·48 cites·9 claims
- 2381US11779872B2Pulse valveMAC VALVES INC·Filed 2020·Granted Oct 10, 2023·1 cites·9 claims
- 2481US10578226B2Valve with two-piece adjustable can with integral pole pieceMAC VALVES INC·Filed 2017·Granted Mar 3, 2020·2 cites·20 claims
- 2580US6772791B2Directly operated pneumatic valve having an air assist returnMAC VALVES INC·Filed 2002·Granted Aug 10, 2004·29 cites·23 claims
- 2680US6543481B2Pilot operated pneumatic valveMAC VALVES INC·Filed 2001·Granted Apr 8, 2003·24 cites·18 claims
- 2779US5192936ASolenoidMAC VALVES INC·Filed 1991·Granted Mar 9, 1993·33 cites·7 claims
- 2879US4453565AFour-way valve with cover mounted pressure regulating and flow control valveMAC VALVES INC·Filed 1982·Granted Jun 12, 1984·32 cites·9 claims
- 2978US7210501B2Directly operated pneumatic valve having a differential assist returnMAC VALVES INC·Filed 2004·Granted May 1, 2007·27 cites·37 claims
- 3076US5092365AValve with adjustable valve seatMAC VALVES INC·Filed 1991·Granted Mar 3, 1992·38 cites·4 claims
- 3175US11028837B2Solenoid pumpMAC VALVES INC·Filed 2019·Granted Jun 8, 2021·1 cites·18 claims
- 3274US4579042ASelective air pressure control system for welding and like apparatusMAC VALVES INC·Filed 1984·Granted Apr 1, 1986·20 cites·6 claims
- 3374US4279271APressure regulator and flow control valve with pre-exhaustMAC VALVES INC·Filed 1979·Granted Jul 21, 1981·23 cites·14 claims
- 3473US6772784B1Proportional pressure regulator having positive and negative pressure delivery capabilityMAC VALVES INC·Filed 2003·Granted Aug 10, 2004·19 cites·20 claims
- 3569US11067102B1Digital proportional pressure controllerMAC VALVES INC·Filed 2020·Granted Jul 20, 2021·1 cites·20 claims
- 3669US4407323ACartridge type pilot valveMAC VALVES INC·Filed 1982·Granted Oct 4, 1983·22 cites·7 claims
- 3768US4197874APressure regulator and flow control valve with pre-exhaust vent meansMAC VALVES INC·Filed 1978·Granted Apr 15, 1980·19 cites·8 claims
- 3867US11859729B2Proportional solenoid valveMAC VALVES INC·Filed 2022·Granted Jan 2, 2024·0 cites·21 claims
- 3966US7915550B2Pneumatic system electrical contact deviceMAC VALVES INC·Filed 2008·Granted Mar 29, 2011·5 cites·36 claims
- 4066US4438418ALow-wattage solenoidMAC VALVES INC·Filed 1982·Granted Mar 20, 1984·14 cites·3 claims
- 4165US6483688B1Control circuit for solenoid valve assemblyMAC VALVES INC·Filed 2000·Granted Nov 19, 2002·12 cites·1 claims
- 4264US10935153B2Proportional flow control valve poppet with flow control needleMAC VALVES INC·Filed 2019·Granted Mar 2, 2021·1 cites·20 claims
- 4363US9903395B2Proportional pressure controller with isolation valve assemblyMAC VALVES INC·Filed 2016·Granted Feb 27, 2018·1 cites·23 claims
- 4462US4271868APilot operated pilot valveMAC VALVES INC·Filed 1979·Granted Jun 9, 1981·17 cites·8 claims
- 4561US4522374AValve spoolMAC VALVES INC·Filed 1983·Granted Jun 11, 1985·21 cites·6 claims
- 4660US5032704AMulti-pressure control systemMAC VALVES INC·Filed 1990·Granted Jul 16, 1991·20 cites·11 claims
- 4758US4566490ADirect solenoid operated valve with minimal tolerance accumulationMAC VALVES INC·Filed 1981·Granted Jan 28, 1986·12 cites·9 claims
- 4856US12467542B2Valve having a quad ring sealMAC VALVES INC·Filed 2024·Granted Nov 11, 2025·0 cites·8 claims
- 4954US6095184APressure regulator with integrated control valve, adjustable downstream pressure build and quick exhaustMAC VALVES INC·Filed 1999·Granted Aug 1, 2000·22 cites·16 claims
- 5053US12104704B2Three-way valveMAC VALVES INC·Filed 2023·Granted Oct 1, 2024·0 cites·15 claims
Showing the top 50 of 70 patent records by PatentIndex Score.
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