Inventor · disambiguated record
Ralph Valkenberg
Also filed as: VALKENBERG RALPH
5 granted patents·1 pending application·19 citations·filing 2014–2019
74Inventor score
Files withSTACKPOLE INT ENGINEERED PRODUCTS LTD4STACKPOLE INT ENG PRODUCTS LTD1STACKPOLE POWERTRAIN INT ULC1
Top patents by PatentIndex Score
6 records- 0187US10030656B2Variable displacement vane pump with integrated fail safe functionSTACKPOLE INT ENGINEERED PRODUCTS LTD·Filed 2015·Granted Jul 24, 2018·5 cites·28 claims
- 0284US9534519B2Variable displacement vane pump with integrated fail safe functionSTACKPOLE INT ENG PRODUCTS LTD·Filed 2014·Granted Jan 3, 2017·10 cites·11 claims
- 0377US10247187B2Variable displacement vane pump with thermo-compensationSTACKPOLE INT ENGINEERED PRODUCTS LTD·Filed 2017·Granted Apr 2, 2019·1 cites·22 claims
- 0473US10871161B2Epitrochoidal vacuum pumpSTACKPOLE INT ENGINEERED PRODUCTS LTD·Filed 2018·Granted Dec 22, 2020·2 cites·11 claims
- 0562US9771935B2Variable displacement vane pump with thermo-compensationSTACKPOLE POWERTRAIN INT ULC·Filed 2014·Granted Sep 26, 2017·1 cites·24 claims
- 0637US2020208629A1Pump assembly having two pumps provided in a single housingSTACKPOLE INT ENGINEERED PRODUCTS LTD·Filed 2019·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →