Inventor · disambiguated record
Manmohan S. Kalsi
Also filed as: KALSI MAMMOHAN S · KALSI MANHOHAN S · KALSI MANMOHAN S · KALSI MANMOHAN SINGH
36 granted patents·4 pending applications·2,297 citations·filing 1977–2025
98Inventor score
Top patents by PatentIndex Score
40 records- 0199US5873576ASkew and twist resistant hydrodynamic rotary shaft sealKALSI ENG INC·Filed 1997·Granted Feb 23, 1999·126 cites·7 claims
- 0299US5738358AExtrusion resistant hydrodynamically lubricated multiple modulus rotary shaft sealKALSI ENG INC·Filed 1996·Granted Apr 14, 1998·154 cites·28 claims
- 0399US4484753ARotary shaft sealNL INDUSTRIES INC·Filed 1983·Granted Nov 27, 1984·112 cites·25 claims
- 0498US6036192ASkew and twist resistant hydrodynamic rotary shaft sealKALSI ENG INC·Filed 1999·Granted Mar 14, 2000·105 cites·24 claims
- 0598US4610319AHydrodynamic lubricant seal for drill bitsKALSI MANMOHAN S·Filed 1984·Granted Sep 9, 1986·147 cites·29 claims
- 0697US6382634B1Hydrodynamic seal with improved extrusion abrasion and twist resistanceKALSI ENG INC·Filed 2000·Granted May 7, 2002·61 cites·21 claims
- 0797US6315302B1Skew resisting hydrodynamic sealKALSI ENG INC·Filed 2000·Granted Nov 13, 2001·87 cites·27 claims
- 0897US6120036AExtrusion resistant hydrodynamically lubricated rotary shaft sealKALSI ENG INC·Filed 1998·Granted Sep 19, 2000·88 cites·26 claims
- 0997US5678829AHydrodynamically lubricated rotary shaft seal with environmental side grooveKALSI ENG INC·Filed 1996·Granted Oct 21, 1997·123 cites·20 claims
- 1096US6685194B2Hydrodynamic rotary seal with varying slopeFiled 2001·Granted Feb 3, 2004·75 cites·41 claims
- 1196US6334619B1Hydrodynamic packing assemblyKALSI ENG INC·Filed 1999·Granted Jan 1, 2002·90 cites·33 claims
- 1295US11085470B2Flow conditioning assemblyKALSI ENG INC·Filed 2020·Granted Aug 10, 2021·11 cites·106 claims
- 1395US6767016B2Hydrodynamic rotary seal with opposed tapering seal lipsFiled 2001·Granted Jul 27, 2004·62 cites·37 claims
- 1495US6460635B1Load responsive hydrodynamic bearingKALSI ENG INC·Filed 2000·Granted Oct 8, 2002·87 cites·39 claims
- 1594US8505924B2Rotary shaft sealing assemblyDIETLE LANNIE L·Filed 2010·Granted Aug 13, 2013·14 cites·20 claims
- 1694US6561520B2Hydrodynamic rotary coupling sealKALSI ENG INC·Filed 2001·Granted May 13, 2003·75 cites·27 claims
- 1794US4124194AMetallic seat construction for valvesACF IND INC·Filed 1977·Granted Nov 7, 1978·61 cites·9 claims
- 1892US6007105ASwivel seal assemblyKALSI ENG INC·Filed 1998·Granted Dec 28, 1999·156 cites·30 claims
- 1991US7798496B2Rotary shaft sealing assemblyKALSI ENG INC·Filed 2004·Granted Sep 21, 2010·34 cites·35 claims
- 2091US5305839ATurbine pump ring for drilling headsMASX ENERGY SERVICES GROUP INC·Filed 1993·Granted Apr 26, 1994·142 cites·11 claims
- 2191US4549754ATool jointREED TUBULAR PROD·Filed 1983·Granted Oct 29, 1985·146 cites·7 claims
- 2288US11261891B2Flow conditioning assemblyKALSI ENG INC·Filed 2021·Granted Mar 1, 2022·2 cites·56 claims
- 2388US7052020B2Hydrodynamic rotary sealKALSI ENG INC·Filed 2003·Granted May 30, 2006·33 cites·41 claims
- 2485US4208035AMetal gate valve seat having a flexible front lip face sealACF IND INC·Filed 1978·Granted Jun 17, 1980·39 cites·9 claims
- 2579US4790393AValve for drilling fluid telemetry systemsNL INDUSTRIES INC·Filed 1983·Granted Dec 13, 1988·50 cites·20 claims
- 2679US4147183AValve using rolamite mechanismACF IND INC·Filed 1977·Granted Apr 3, 1979·29 cites·8 claims
- 2774US12271214B2Miniature passive thermal control valve for mixing or splitting single-phase fluid with adjustable thermal actuatorKALSI ENG INC·Filed 2024·Granted Apr 8, 2025·0 cites·34 claims
- 2872US6338469B1Flexible wedge gate valveKALSI ENG INC·Filed 1999·Granted Jan 15, 2002·34 cites·8 claims
- 2968US5765637AMultiple test cased hole formation tester with in-line perforation, sampling and hole resealing meansGAS RES INST·Filed 1996·Granted Jun 16, 1998·53 cites·8 claims
- 3062US11989043B2Miniature passive thermal control valve for mixing or splitting single-phase fluid with adjustable thermal actuatorKALSI ENG INC·Filed 2022·Granted May 21, 2024·0 cites·25 claims
- 3162US5657961AFlexible wedge gate valveKALSI ENG INC·Filed 1995·Granted Aug 19, 1997·24 cites·18 claims
- 3259US2025314319A1Fast-responding passive flow rate limiting valve for high pressure gas applicationsKALSI ENG INC·Filed 2025·Application pending·0 cites
- 3353US5862861APlug apparatus suitable for sealing holes of variable or roughened diameterFiled 1996·Granted Jan 26, 1999·31 cites·14 claims
- 3453US4489918ANonfloating seat for expanding gate valvesKALSI MANMOHAN S·Filed 1983·Granted Dec 25, 1984·15 cites·21 claims
- 3550US2024353871A1Passive modulating design for fast responding control valves for high pressure gas applicationsKALSI ENG INC·Filed 2024·Application pending·0 cites
- 3646US4614330ANon-locking tapered plug valveEMPRESAS LANZAGORTA S A DE C V·Filed 1985·Granted Sep 30, 1986·15 cites·16 claims
- 3744US4810105ABearing sleevesSPERRY SUN INC·Filed 1987·Granted Mar 7, 1989·12 cites·8 claims
- 3843US2006171616A1Hydrodynamic thrust bearing assemblyKALSI ENG INC·Filed 2006·Application pending·0 cites
- 3939US4613443ANonconducting thread lubricantNL INDUSTRIES INC·Filed 1984·Granted Sep 23, 1986·4 cites·8 claims
- 4038US2003205864A1Rotary sealing deviceFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →