Assignee
RED VALVE CO INC
US·37 granted patents·7 pending applications·1,222 citations·filing 1977–2025
Top patents by PatentIndex Score
44 records- 0199US4322054APinch valveRED VALVE CO INC·Filed 1980·Granted Mar 30, 1982·168 cites·2 claims
- 0295US4492253ATide gate valveRED VALVE CO INC·Filed 1982·Granted Jan 8, 1985·73 cites·4 claims
- 0394US6412514B1Flip check valveRED VALVE CO INC·Filed 2000·Granted Jul 2, 2002·61 cites·16 claims
- 0492US4523738ADeformable sleeve for a pinch valveRED VALVE CO INC·Filed 1984·Granted Jun 18, 1985·88 cites·13 claims
- 0591US6585005B1Reinforced tide gate valveRED VALVE CO INC·Filed 2000·Granted Jul 1, 2003·51 cites·7 claims
- 0688US4268005APinch valveRED VALVE CO INC·Filed 1978·Granted May 19, 1981·56 cites·5 claims
- 0787US6367783B1Fine bubble diffuserRED VALVE CO INC·Filed 1999·Granted Apr 9, 2002·76 cites·17 claims
- 0887US4172580APinch valveRED VALVE CO INC·Filed 1977·Granted Oct 30, 1979·39 cites·4 claims
- 0985US4303222APinch valveRED VALVE CO INC·Filed 1980·Granted Dec 1, 1981·44 cites·6 claims
- 1084US5727593ATide gate valve with curvilinear billRED VALVE CO INC·Filed 1996·Granted Mar 17, 1998·55 cites·25 claims
- 1183US6372140B2Diffused aeration methodRED VALVE CO INC·Filed 2001·Granted Apr 16, 2002·35 cites·7 claims
- 1283US4607663AInversion-resistant, readily-openable tide gate valveRED VALVE CO INC·Filed 1985·Granted Aug 26, 1986·48 cites·5 claims
- 1381US5769125AInversion-resistant, readily openable tide gate valveRED VALVE CO INC·Filed 1996·Granted Jun 23, 1998·45 cites·19 claims
- 1481US4372528APinch valve sleeveRED VALVE CO INC·Filed 1981·Granted Feb 8, 1983·36 cites·11 claims
- 1580US6367505B1Check valve with oversized billRED VALVE CO INC·Filed 2000·Granted Apr 9, 2002·25 cites·25 claims
- 1676US6923421B2Flexible half sleeve style pinch valveRED VALVE CO INC·Filed 2003·Granted Aug 2, 2005·23 cites·9 claims
- 1776US5931197AAsymmetrical check valveRED VALVE CO INC·Filed 1998·Granted Aug 3, 1999·37 cites·21 claims
- 1874US6016839AAir diffuser valveRED VALVE CO INC·Filed 1998·Granted Jan 25, 2000·34 cites·20 claims
- 1972US6953059B2Check valve with hangerRED VALVE CO INC·Filed 2003·Granted Oct 11, 2005·14 cites·10 claims
- 2071US6702263B2Diffuser saddle connectionRED VALVE CO INC·Filed 2002·Granted Mar 9, 2004·17 cites·4 claims
- 2169US6505810B2Pinch valve arrangement for flow controlRED VALVE CO INC·Filed 2001·Granted Jan 14, 2003·17 cites·5 claims
- 2269US2025197262A1Wastewater Biological Selector System and Methods for Treating Wastewater Process FluidRED VALVE CO INC·Filed 2024·Application pending·0 cites
- 2368US12420243B2Venturi aspirator THM/VOC removal systemRED VALVE CO INC·Filed 2022·Granted Sep 23, 2025·0 cites·17 claims
- 2467US4763527ATemperature-resistant isolation fluid pressure detectorRED VALVE CO INC·Filed 1987·Granted Aug 16, 1988·24 cites·4 claims
- 2567US4585031AInversion-resistant tide gate valveRED VALVE CO INC·Filed 1985·Granted Apr 29, 1986·32 cites·7 claims
- 2666US5606995AInversion-resistant, readily openable tide gate valveRED VALVE CO INC·Filed 1994·Granted Mar 4, 1997·25 cites·11 claims
- 2765US4534224AIsolation fluid pressure detectorRED VALVE CO INC·Filed 1984·Granted Aug 13, 1985·19 cites·7 claims
- 2865US2025135410A1Multiple Submergence Depth Diffused Air System and Methods of Diffusing AirRED VALVE CO INC·Filed 2024·Application pending·0 cites
- 2963US2025290571A1Duckbill Flow Control Devices Having a Dynamic Recovery Mechanism and Methods of Using the SameRED VALVE CO INC·Filed 2025·Application pending·0 cites
- 3062US4603864ASealing arrangement for knife gate valvesRED VALVE CO INC·Filed 1985·Granted Aug 5, 1986·29 cites·4 claims
- 3158US10550954B2Elastomeric in-line tide gate valveRED VALVE CO INC·Filed 2017·Granted Feb 4, 2020·1 cites·21 claims
- 3258US7104279B2Method and apparatus for preventing stagnation in fluid reservoirsRED VALVE CO INC·Filed 2001·Granted Sep 12, 2006·7 cites·15 claims
- 3355US10627036B2Pressure and headloss maintaining valve system for clean and dirty water systemsRED VALVE CO INC·Filed 2017·Granted Apr 21, 2020·0 cites·16 claims
- 3453US6561225B2Passive flow control valveRED VALVE CO INC·Filed 2002·Granted May 13, 2003·9 cites·20 claims
- 3550US4923166APressure-reducing noise-abating control valveRED VALVE CO INC·Filed 1989·Granted May 8, 1990·13 cites·10 claims
- 3650US2008083889A1Directly Fluid Operated Pinch ValveRED VALVE CO INC·Filed 2007·Application pending·0 cites
- 3749US2025067355A1Tide Gate Check Valve with an Enlarged Integral Annular WallRED VALVE CO INC·Filed 2023·Application pending·0 cites
- 3848US6193220B1Diffused aeration systemRED VALVE CO INC·Filed 1999·Granted Feb 27, 2001·15 cites·17 claims
- 3947US10773878B2Free flow collar for control valvesRED VALVE CO INC·Filed 2016·Granted Sep 15, 2020·0 cites·23 claims
- 4047US2006120214A1Mixing deviceRED VALVE CO INC·Filed 2005·Application pending·0 cites
- 4147US2007246113A1First flush passive flow control valveRED VALVE CO INC·Filed 2007·Application pending·0 cites
- 4238US10538438B2Tank overflow pipe adjustable dechlorinating deviceRED VALVE CO INC·Filed 2016·Granted Jan 21, 2020·0 cites·21 claims
- 4334US5282314AMethod of making a pressure relief valueRED VALVE CO INC·Filed 1993·Granted Feb 1, 1994·4 cites·4 claims
- 4431US5215123APressure relief valveRED VALVE CO INC·Filed 1992·Granted Jun 1, 1993·2 cites·15 claims
Join the waitlist — get patent alerts
Get an alert when RED VALVE CO INC files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →