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  1. Technology classes
  2. /Y · General tagging of new technological developments
  3. /Y10 · Technical subjects covered by former uspc
  4. /Y10S · Technical subjects covered by former uspc cross-reference art collections [xracs] and digests
  5. /Y10S 137/00 · Fluid handling
  6. /Y10S 137/904
Y10S 137/904

Cushion check valves

Y10S137/904 (Cushion check valves) appears on 26 US grants and 6 published applications in this corpus.

Search patents in Y10S

Where it sits

  1. YGeneral tagging of new technological developments
  2. Y10Technical subjects covered by former uspc
  3. Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests
  4. Y10S 137/00Fluid handling
  5. Y10S 137/904Cushion check valves
Granted patents
26
Published applications
6
Assignees
17
Inventors
33
Latest grant
14 Jul 2015

Filings by year

Granted patentsPublished applications
Y10S 137/904: granted patents and published applications per publication year
YearGranted patentsPublished applications
198210
198310
198400
198510
198600
198710
198800
198920
199020
199130
199210
199310
199430
199510
199620
199700
199800
199900
200000
200110
200200
200300
200411
200500
200612
200721
200800
200900
201000
201100
201200
201300
201401
201521

1982199220022015

By publication year. Applications have been published since 2001.

Recent patents

  • Tunable check valve14 Jul 2015US 9,080,690 B2
  • Tunable fluid end3 Feb 2015US 8,944,409 B2
  • Check valve31 Jul 2007US 7,249,611 B2Valve Innovations, LLC
  • High impact discharge valve30 Jan 2007US 7,168,446 B2Air Products and Chemicals, Inc.
  • Check valve26 Dec 2006US 7,152,622 B2Valve Innovations, LLC
  • Tunable Check Valve12 Feb 2015US 2015/0040998 A1
  • Tunable Fluid End29 May 2014US 2014/0144528 A1
  • Check valve8 Mar 2007US 2007/0051411 A1Valve Innovations, LLC
  • High impact discharge valve23 Nov 2006US 2006/0260693 A1Air Products and Chemicals, Inc.
  • Check valve18 May 2006US 2006/0102233 A1Valve Innovations, LLC

Most cited

By later US patents
  • Valve assembly with relief groove34US 4,350,179 A1982
  • Bonnetless swing check valve32US 5,341,840 ATom Wheatley Valve Co. · 1994
  • Valve arrangement for a micro pump28US 5,520,522 ATDK Corporation · 1996
  • Check valve27US 7,152,622 B2Valve Innovations, LLC · 2006
  • Top-entry check valve with threaded fasteners25US 5,161,570 A1992

Top assignees

Documents
  • VIValve Innovations, LLC4
  • Air Products and Chemicals, Inc.2
  • DWDieter Wildfang GmbH2
  • KIKeystone International Holdings Corp.2
  • BVBall Vavle Company, Inc.1
  • BHBrand Hydraulics Co. Inc.1
  • DIDresser Industries, Inc.1
  • IIIMO Industries, Inc.1
  • IMInstruments and Movements Limited1
  • JJackson Corporation1

Often classified with

  • Y10TTechnical subjects covered by former us classification31
  • F16KValves27
  • F04BPositive-displacement machines for liquids10
  • F01LCyclically operating valves for machines or engines3
  • E03CDomestic plumbing installations for fresh water or waste water2
  • A61MDevices for delivering substances into the body1
  • B05BSpraying apparatus1
  • E05FDevices for moving wings into open or closed position1
  • E05YIndexing scheme associated with subclasses e05d and e05f, relating to construction elements1
  • F01NGas-flow silencers or exhaust apparatus for machines or engines in general1

Documents that also carry the other class.

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