Assignee
STEIN SEAL CO
US·40 granted patents·1 pending application·1,021 citations·filing 1990–2024
Top patents by PatentIndex Score
41 records- 0199US7931277B2Hydrodynamic circumferential seal system for large translationsSTEIN SEAL CO·Filed 2009·Granted Apr 26, 2011·64 cites·22 claims
- 0297US10190429B2Intershaft seal with asymmetric sealing ring and centrifugal retaining platesSTEIN SEAL CO·Filed 2016·Granted Jan 29, 2019·13 cites·21 claims
- 0397US9194424B2Circumferential back-to-back seal assembly with bifurcated flowSTEIN SEAL CO·Filed 2014·Granted Nov 24, 2015·14 cites·36 claims
- 0497US8905408B2Windback device for a circumferential sealSTEIN SEAL CO·Filed 2012·Granted Dec 9, 2014·22 cites·11 claims
- 0597US7780399B1Reverse pressure double dam face sealSTEIN SEAL CO·Filed 2007·Granted Aug 24, 2010·31 cites·46 claims
- 0697US5558341ASeal for sealing an incompressible fluid between a relatively stationary seal and a movable memberSTEIN SEAL CO·Filed 1995·Granted Sep 24, 1996·188 cites·10 claims
- 0796US11168573B2Circumferential seal assembly with adjustable seating forcesSTEIN SEAL CO·Filed 2017·Granted Nov 9, 2021·10 cites·27 claims
- 0896US8342534B2Low and reverse pressure application hydrodynamic pressurizing sealsSTEIN SEAL CO·Filed 2011·Granted Jan 1, 2013·34 cites·1 claims
- 0996US6145843AHydrodynamic lift seal for use with compressible fluidsSTEIN SEAL CO·Filed 1998·Granted Nov 14, 2000·135 cites·15 claims
- 1095US9970482B2Circumferential back-to-back seal assembly with bifurcated flowSTEIN SEAL CO·Filed 2015·Granted May 15, 2018·6 cites·30 claims
- 1195US8888104B2Intershaft seal system for minimizing pressure induced twistSTEIN SEAL CO·Filed 2013·Granted Nov 18, 2014·14 cites·22 claims
- 1295US8356819B2Low and reverse pressure application hydrodynamic pressurizing sealsSTEIN SEAL CO·Filed 2011·Granted Jan 22, 2013·12 cites·13 claims
- 1395US7963525B1Hydrodynamic circumferential seal system for large translationsSTEIN SEAL CO·Filed 2011·Granted Jun 21, 2011·18 cites·15 claims
- 1494US9850770B2Intershaft seal with asymmetric sealing ringSTEIN SEAL CO·Filed 2016·Granted Dec 26, 2017·7 cites·19 claims
- 1593US6692006B2High-pressure film-riding seals for rotating shaftsSTEIN SEAL CO·Filed 2001·Granted Feb 17, 2004·90 cites·17 claims
- 1692US8616554B2Low and reverse pressure application hydrodynamic pressurizing sealsSTEIN SEAL CO·Filed 2012·Granted Dec 31, 2013·10 cites·10 claims
- 1790US11333197B2Circumferential seal assembly with multi-axis stepped groovesSTEIN SEAL CO·Filed 2020·Granted May 17, 2022·2 cites·21 claims
- 1890US8820752B2Intershaft seal with centrifugal compensationSTEIN SEAL CO·Filed 2013·Granted Sep 2, 2014·15 cites·17 claims
- 1988US10948014B2Intershaft seal assembly with multi-axis stepped groovesSTEIN SEAL CO·Filed 2018·Granted Mar 16, 2021·4 cites·49 claims
- 2086US6145840ARadial flow seals for rotating shafts which deliberately induce turbulent flow along the seal gapSTEIN SEAL CO·Filed 1995·Granted Nov 14, 2000·53 cites·12 claims
- 2186US5509664ASegmented hydrodynamic seals for sealing a rotatable shaftSTEIN SEAL CO·Filed 1993·Granted Apr 23, 1996·97 cites·7 claims
- 2284US12590638B2Circumferential sealing assembly with duct-fed hydrodynamic groovesSTEIN SEAL CO·Filed 2024·Granted Mar 31, 2026·0 cites·34 claims
- 2383US9353639B2Windback device for a circumferential sealSTEIN SEAL CO·Filed 2014·Granted May 31, 2016·6 cites·18 claims
- 2482US5516118ACircumferential hydrodynamic seals for sealing a bidirectionally rotatable memberSTEIN SEAL CO·Filed 1993·Granted May 14, 1996·49 cites·7 claims
- 2582US5137284AStationary seal ring assembly for use in dry gas face seal assembliesSTEIN SEAL CO·Filed 1990·Granted Aug 11, 1992·60 cites·4 claims
- 2681US11732753B2Circumferential seal assembly with multi-axis stepped groovesSTEIN SEAL CO·Filed 2022·Granted Aug 22, 2023·0 cites·20 claims
- 2780US12044317B2Circumferential sealing assembly with duct-fed hydrodynamic groovesSTEIN SEAL CO·Filed 2023·Granted Jul 23, 2024·0 cites·22 claims
- 2878US11686346B2Circumferential seal assembly with multi-axis stepped groovesSTEIN SEAL CO·Filed 2022·Granted Jun 27, 2023·0 cites·20 claims
- 2976US5503407AWindbacks for rotating shaftsSTEIN SEAL CO·Filed 1994·Granted Apr 2, 1996·37 cites·5 claims
- 3075US7938402B2Air riding sealSTEIN SEAL CO·Filed 2009·Granted May 10, 2011·8 cites·12 claims
- 3173US11635146B2Circumferential sealing assembly with duct-fed hydrodynamic groovesSTEIN SEAL CO·Filed 2021·Granted Apr 25, 2023·0 cites·25 claims
- 3272US11686206B2Circumferential seal assembly with adjustable seating forcesSTEIN SEAL CO·Filed 2021·Granted Jun 27, 2023·0 cites·49 claims
- 3369US10677247B2Slurry seal assemblySTEIN SEAL CO·Filed 2016·Granted Jun 9, 2020·1 cites·19 claims
- 3467US11359669B2Circumferential back-to-back seal assembly with bifurcated flowSTEIN SEAL CO·Filed 2020·Granted Jun 14, 2022·0 cites·9 claims
- 3567US10941780B2Slurry seal assemblySTEIN SEAL CO·Filed 2020·Granted Mar 9, 2021·0 cites·37 claims
- 3662US10648507B2Circumferential back-to-back seal assembly with bifurcated flowSTEIN SEAL CO·Filed 2018·Granted May 12, 2020·0 cites·10 claims
- 3753US5451065ASeal structuresSTEIN SEAL CO·Filed 1994·Granted Sep 19, 1995·21 cites·9 claims
- 3850US11739653B2Circumferential seal assembly with adjustable seating forcesSTEIN SEAL CO·Filed 2022·Granted Aug 29, 2023·0 cites·51 claims
- 3947US10711839B2Circumferential seal with bifurcated flow along multi-axis stepped groovesSTEIN SEAL CO·Filed 2018·Granted Jul 14, 2020·0 cites·26 claims
- 4043US2014265151A1Circumferential Seal with Ceramic RunnerSTEIN SEAL CO·Filed 2013·Application pending·0 cites
- 4141US11725588B2Intershaft seal assembly with pressure-balanced translatable carrierSTEIN SEAL CO·Filed 2020·Granted Aug 15, 2023·0 cites·36 claims
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