Assignee
NIPPON PILLAR PACKING
JP·248 granted patents·34 pending applications·3,869 citations·filing 1980–2024
Top patents by PatentIndex Score
282 records- 0196US11708928B2Resin joint, channel block, and fluid control deviceNIPPON PILLAR PACKING·Filed 2020·Granted Jul 25, 2023·3 cites·7 claims
- 0296US7565065B2Fluid heater and fluid heating apparatusNIPPON PILLAR PACKING·Filed 2005·Granted Jul 21, 2009·37 cites·20 claims
- 0395US6564828B1Check valveNIPPON PILLAR PACKING·Filed 2000·Granted May 20, 2003·78 cites·14 claims
- 0494US5242871AHeat-resistant expansion memberNIPPON PILLAR PACKING·Filed 1992·Granted Sep 7, 1993·84 cites·8 claims
- 0594US4541638AEmergency shaft seal device by deformation of packing ringNIPPON PILLAR PACKING·Filed 1984·Granted Sep 17, 1985·255 cites·14 claims
- 0693US6357753B1Cartridge-type mechanical sealNIPPON PILLAR PACKING·Filed 2000·Granted Mar 19, 2002·79 cites·10 claims
- 0792USD464409SSleeve for tube fittingNIPPON PILLAR PACKING·Filed 1999·Granted Oct 15, 2002·42 cites·1 claims
- 0892US6135458AStatic pressure non-contact gas sealNIPPON PILLAR PACKING·Filed 1997·Granted Oct 24, 2000·75 cites·7 claims
- 0992US5664787ANon-contacting shaft sealing deviceNIPPON PILLAR PACKING·Filed 1996·Granted Sep 9, 1997·72 cites·4 claims
- 1091USD996584SGasketNIPPON PILLAR PACKING·Filed 2021·Granted Aug 22, 2023·17 cites·1 claims
- 1191US11572951B2Gasket-mounting structureNIPPON PILLAR PACKING·Filed 2019·Granted Feb 7, 2023·6 cites·4 claims
- 1291US6325382B1Non-contact type mechanical sealNIPPON PILLAR PACKING·Filed 2000·Granted Dec 4, 2001·67 cites·12 claims
- 1391US5501470ANon-contacting shaft sealing device with grooved face patternNIPPON PILLAR PACKING·Filed 1993·Granted Mar 26, 1996·64 cites·17 claims
- 1491US5240769APacking material and packing made of the sameNIPPON PILLAR PACKING·Filed 1992·Granted Aug 31, 1993·75 cites·15 claims
- 1591US5134030APacking material and packing made of the sameNIPPON PILLAR PACKING·Filed 1987·Granted Jul 28, 1992·63 cites·51 claims
- 1690USD461545SSleeve for tube fittingNIPPON PILLAR PACKING·Filed 1999·Granted Aug 13, 2002·38 cites·1 claims
- 1789US7845262B2Process and apparatus for producing yarn and gland packingNIPPON PILLAR PACKING·Filed 2006·Granted Dec 7, 2010·11 cites·14 claims
- 1889US5765838ASealing gasket made of expanded graphite, with opened thin-leaf surface structureNIPPON PILLAR PACKING·Filed 1996·Granted Jun 16, 1998·61 cites·3 claims
- 1989US5370405APackingNIPPON PILLAR PACKING·Filed 1993·Granted Dec 6, 1994·36 cites·4 claims
- 2088US12287033B2Seal memberNIPPON PILLAR PACKING·Filed 2021·Granted Apr 29, 2025·2 cites·4 claims
- 2188US5992857AComposite gasketNIPPON PILLAR PACKING·Filed 1997·Granted Nov 30, 1999·63 cites·8 claims
- 2287US11067175B2Gasket-mounting structureNIPPON PILLAR PACKING·Filed 2019·Granted Jul 20, 2021·4 cites·5 claims
- 2387US10408207B2Bellows pump deviceNIPPON PILLAR PACKING·Filed 2015·Granted Sep 10, 2019·6 cites·3 claims
- 2487US10190708B2Resin-made pipe jointNIPPON PILLAR PACKING·Filed 2015·Granted Jan 29, 2019·5 cites·8 claims
- 2587US7883093B2Mechanical sealNIPPON PILLAR PACKING·Filed 2005·Granted Feb 8, 2011·13 cites·5 claims
- 2687US6045164APipe joint made of resinNIPPON PILLAR PACKING·Filed 1999·Granted Apr 4, 2000·61 cites·10 claims
- 2787US5549306AKnitting yarn for gland packing and gland packing made of said knitting yarnNIPPON PILLAR PACKING·Filed 1995·Granted Aug 27, 1996·47 cites·6 claims
- 2887US5421593AShaft seal deviceNIPPON PILLAR PACKING·Filed 1993·Granted Jun 6, 1995·67 cites·8 claims
- 2986US6431551B1Non-contact type mechanical sealNIPPON PILLAR PACKING·Filed 2000·Granted Aug 13, 2002·32 cites·11 claims
- 3086US4705722AGland packingNIPPON PILLAR PACKING·Filed 1986·Granted Nov 10, 1987·49 cites·14 claims
- 3185USD997310SGasketNIPPON PILLAR PACKING·Filed 2021·Granted Aug 29, 2023·10 cites·1 claims
- 3285US7374409B2Reciprocating pumpNIPPON PILLAR PACKING·Filed 2004·Granted May 20, 2008·32 cites·7 claims
- 3385US7229076B2Mechanical sealNIPPON PILLAR PACKING·Filed 2006·Granted Jun 12, 2007·11 cites·3 claims
- 3485US6776440B2Method and structure for preventing slipping-off of a tube in a pipe joint made of resinNIPPON PILLAR PACKING·Filed 2002·Granted Aug 17, 2004·34 cites·6 claims
- 3585US6382633B1Shaft seal device using gland packingNIPPON PILLAR PACKING·Filed 1999·Granted May 7, 2002·50 cites·6 claims
- 3685US6089965APolishing padNIPPON PILLAR PACKING·Filed 1999·Granted Jul 18, 2000·89 cites·4 claims
- 3784US10132431B2Pipe connecting deviceNIPPON PILLAR PACKING·Filed 2014·Granted Nov 20, 2018·7 cites·3 claims
- 3884US10100444B2Yarn and gland packingNIPPON PILLAR PACKING·Filed 2015·Granted Oct 16, 2018·5 cites·8 claims
- 3984US7726659B2Static pressure type non-contact gas sealNIPPON PILLAR PACKING·Filed 2005·Granted Jun 1, 2010·13 cites·2 claims
- 4083US10718324B2Bellows pump apparatusNIPPON PILLAR PACKING·Filed 2015·Granted Jul 21, 2020·4 cites·11 claims
- 4183US10571060B2Structure of resin-made pipe jointNIPPON PILLAR PACKING·Filed 2016·Granted Feb 25, 2020·4 cites·6 claims
- 4283US6468685B1Separator for a fuel cellNIPPON PILLAR PACKING·Filed 2000·Granted Oct 22, 2002·26 cites·8 claims
- 4383US5749586AGasket for sanitary piping and method of manufacturing the sameNIPPON PILLAR PACKING·Filed 1995·Granted May 12, 1998·55 cites·8 claims
- 4483US5529318ANon-contacting shaft sealing deviceNIPPON PILLAR PACKING·Filed 1995·Granted Jun 25, 1996·44 cites·9 claims
- 4582US6324739B1Inner ring press-insertion jig for a pipe joint made of resinNIPPON PILLAR PACKING·Filed 2000·Granted Dec 4, 2001·18 cites·11 claims
- 4682US6089621APipe joint made of resinNIPPON PILLAR PACKING·Filed 1998·Granted Jul 18, 2000·45 cites·17 claims
- 4782US6053973ASingle crystal SiC and a method of producing the sameNIPPON PILLAR PACKING·Filed 1998·Granted Apr 25, 2000·48 cites·12 claims
- 4881US7086650B2Gland packingNIPPON PILLAR PACKING·Filed 2003·Granted Aug 8, 2006·17 cites·2 claims
- 4981US4455334AMolded gland packingNIPPON PILLAR PACKING·Filed 1982·Granted Jun 19, 1984·68 cites·6 claims
- 5080USD985740SGasketNIPPON PILLAR PACKING·Filed 2021·Granted May 9, 2023·7 cites·1 claims
Showing the top 50 of 282 patent records by PatentIndex Score.
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