Assignee
HUMPHREY PROD CO
US·25 granted patents·1 pending application·729 citations·filing 1978–2024
Top patents by PatentIndex Score
26 records- 0194US4524807ASnap-together modular manifold constructionHUMPHREY PROD CO·Filed 1982·Granted Jun 25, 1985·101 cites·12 claims
- 0293US7591365B2Networkable zone control modules and method and conveyor system incorporating the sameHUMPHREY PROD CO·Filed 2006·Granted Sep 22, 2009·37 cites·92 claims
- 0392US6488050B1Pneumatic valve assemblyHUMPHREY PROD CO·Filed 2001·Granted Dec 3, 2002·77 cites·43 claims
- 0491US10279439B1Method of making a valve system for a valve asemblyHUMPHREY PROD CO·Filed 2016·Granted May 7, 2019·4 cites·19 claims
- 0590US4915134AThree-way poppet valve with hollow stemHUMPHREY PROD CO·Filed 1989·Granted Apr 10, 1990·66 cites·6 claims
- 0689US7448411B2Actuator and valve assemblyHUMPHREY PROD CO·Filed 2006·Granted Nov 11, 2008·23 cites·12 claims
- 0787US7280889B2Networkable zone control modules and method and coveyor system incorporating the sameHUMPHREY PROD CO·Filed 2003·Granted Oct 9, 2007·34 cites·14 claims
- 0886US4501299APlunger-type valveHUMPHREY PROD CO·Filed 1982·Granted Feb 26, 1985·47 cites·20 claims
- 0985US10228072B1Valve stem and assemblyHUMPHREY PROD CO·Filed 2015·Granted Mar 12, 2019·8 cites·21 claims
- 1085US6405757B1Low power solenoid valve assemblyHUMPHREY PROD CO·Filed 2000·Granted Jun 18, 2002·37 cites·50 claims
- 1185US4242946AFluid pressure cylinder convertible for use with or without internal bumpersHUMPHREY PROD CO·Filed 1978·Granted Jan 6, 1981·31 cites·26 claims
- 1284US8794266B1Cam actuated valve assembly with manual and electric activationHUMPHREY PROD CO·Filed 2012·Granted Aug 5, 2014·13 cites·27 claims
- 1384US5211198APoppet construction for valveHUMPHREY PROD CO·Filed 1992·Granted May 18, 1993·51 cites·7 claims
- 1483US9494245B1Over-molded valve stem and method of making a valve stem for a valve assemblyHUMPHREY PROD CO·Filed 2014·Granted Nov 15, 2016·5 cites·23 claims
- 1580US4823842ASingle-stem four-way valveHUMPHREY PROD CO·Filed 1988·Granted Apr 25, 1989·31 cites·10 claims
- 1677US6302266B1Conveyor control system employing zone control moduleHUMPHREY PROD CO·Filed 1999·Granted Oct 16, 2001·38 cites·15 claims
- 1775US4971115AFour-way poppet valve with hollow stem and four-port bodyHUMPHREY PROD CO·Filed 1989·Granted Nov 20, 1990·31 cites·21 claims
- 1873US4842020ADouble-solenoid single-stem four-way valveHUMPHREY PROD CO·Filed 1988·Granted Jun 27, 1989·22 cites·7 claims
- 1973US4494572AFour-way poppet valve assemblyHUMPHREY PROD CO·Filed 1982·Granted Jan 22, 1985·31 cites·6 claims
- 2072US11662038B1Modular valve assemblyHUMPHREY PROD CO·Filed 2020·Granted May 30, 2023·1 cites·21 claims
- 2168US4428276AO-Ring seal for piston of double-acting fluid pressure cylinderHUMPHREY PROD CO·Filed 1981·Granted Jan 31, 1984·24 cites·9 claims
- 2267US12359739B1Expandable sealing sleeve with rigid supportHUMPHREY PROD CO·Filed 2022·Granted Jul 15, 2025·0 cites·15 claims
- 2367US8019469B2Networkable zone control modules and method and conveyor system incorporating the sameHUMPHREY PROD CO·Filed 2006·Granted Sep 13, 2011·6 cites·91 claims
- 2449US2024360915A1Peizoelectric valve assemblyHUMPHREY PROD CO·Filed 2024·Application pending·0 cites
- 2544US4382452AExhaust flow control valve for manifold plateHUMPHREY PROD CO·Filed 1981·Granted May 10, 1983·11 cites·10 claims
- 2641US11708883B1Actuator assembly with electric motor for extending and retracting a pusherHUMPHREY PROD CO·Filed 2019·Granted Jul 25, 2023·0 cites·23 claims
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