Inventor · disambiguated record
David R. Shulver
Also filed as: SHULVER DAVID · SHULVER DAVID R · SHULVER DAVID ROBERT
21 granted patents·5 pending applications·241 citations·filing 2000–2023
95Inventor score
Files withMAGNA POWERTRAIN USA INC10SHULVER DAVID R5WOLF STEEL LTD5WILLIAMSON MATTHEW3DANA AUTOMOTIVE LTD1
Top patents by PatentIndex Score
26 records- 0196US8047822B2Continuously variable displacement vane pump and systemMAGNA POWERTRAIN USA INC·Filed 2007·Granted Nov 1, 2011·29 cites·16 claims
- 0296US7794217B2Variable capacity vane pump with dual control chambersMAGNA POWERTRAIN USA INC·Filed 2005·Granted Sep 14, 2010·36 cites·16 claims
- 0395US8317486B2Variable capacity vane pump with dual control chambersWILLIAMSON MATTHEW·Filed 2010·Granted Nov 27, 2012·12 cites·9 claims
- 0494US8057201B2Variable displacement vane pump with dual control chambersSHULVER DAVID R·Filed 2007·Granted Nov 15, 2011·22 cites·17 claims
- 0594US7997882B2Reduced rotor assembly diameter vane pumpMAGNA POWERTRAIN USA INC·Filed 2007·Granted Aug 16, 2011·48 cites·12 claims
- 0692US8202061B2Control system and method for pump output pressure controlSHULVER DAVID R·Filed 2007·Granted Jun 19, 2012·16 cites·20 claims
- 0791US7832997B2Variable capacity gerotor pumpMAGNA POWERTRAIN USA INC·Filed 2005·Granted Nov 16, 2010·14 cites·19 claims
- 0890US8651825B2Variable capacity vane pump with dual control chambersMAGNA POWERTRAIN USA INC·Filed 2012·Granted Feb 18, 2014·5 cites·12 claims
- 0990US8496445B2Control system and method for pump output pressure controlSHULVER DAVID R·Filed 2012·Granted Jul 30, 2013·6 cites·9 claims
- 1086US8079826B2Vane pump with substantially constant regulated outputSHULVER DAVID R·Filed 2008·Granted Dec 20, 2011·10 cites·7 claims
- 1185US8444395B2Variable displacement variable pressure vane pump systemTANASUCA CEZAR·Filed 2007·Granted May 21, 2013·11 cites·14 claims
- 1283US8118575B2Variable displacement vane pump with enhanced discharge portWILLIAMSON MATTHEW·Filed 2009·Granted Feb 21, 2012·8 cites·11 claims
- 1377US9181803B2Vane pump with multiple control chambersMAGNA POWERTRAIN USA INC·Filed 2013·Granted Nov 10, 2015·2 cites·14 claims
- 1473US8297943B2Pump control using overpressure sourceSHULVER DAVID R·Filed 2007·Granted Oct 30, 2012·4 cites·6 claims
- 1570US11859826B2Low profile termination cap for direct vent applianceWOLF STEEL LTD·Filed 2020·Granted Jan 2, 2024·1 cites·13 claims
- 1660US6419469B1Pump having a main outlet communicating with a secondary outlet by a gapDANA AUTOMOTIVE LTD·Filed 2000·Granted Jul 16, 2002·9 cites·18 claims
- 1756US2021285661A1Heating and cooling applianceWOLF STEEL LTD·Filed 2021·Application pending·0 cites
- 1854US2024102684A1Simultaneous hybrid heating systemWOLF STEEL LTD·Filed 2023·Application pending·0 cites
- 1954US2023051360A1Simulated flame mechanism for electric fireplacesWOLF STEEL LTD·Filed 2022·Application pending·0 cites
- 2053US9534597B2Vane pump with multiple control chambersMAGNA POWERTRAIN USA INC·Filed 2015·Granted Jan 3, 2017·0 cites·8 claims
- 2153US2013251570A1Variable Displacement Variable Pressure Vane Pump SystemMAGNA POWERTRAIN USA INC·Filed 2013·Application pending·0 cites
- 2252US7037088B2Dual balance shaft pump assemblyTESMA INT INC·Filed 2003·Granted May 2, 2006·8 cites·9 claims
- 2348US10267310B2Variable pressure pump with hydraulic passageMAGNA POWERTRAIN USA INC·Filed 2015·Granted Apr 23, 2019·0 cites·28 claims
- 2447US2009016907A1Dynamic balancer with speed-related control mechanismWILLIAMSON MATTHEW·Filed 2007·Application pending·0 cites
- 2543US7866287B2Pump system and decoupler for supplying pressurized hydraulic fluid to a hydraulically actuated valvetrainMAGNA POWERTRAIN USA INC·Filed 2006·Granted Jan 11, 2011·0 cites·15 claims
- 2642US10739014B2System and method to cool an exposed surface of an applianceWOLF STEEL LTD·Filed 2018·Granted Aug 11, 2020·0 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →