RV

Ralph Valkenberg

SP Stackpole International Engineered Products: 5 patents #1 of 16Top 7%
Overall (All Time): #977,127 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10871161 Epitrochoidal vacuum pump Luke BOUWMEESTER 2020-12-22
10247187 Variable displacement vane pump with thermo-compensation Manfred Arnold, Hans Peter Kutzer 2019-04-02
10030656 Variable displacement vane pump with integrated fail safe function 2018-07-24
9771935 Variable displacement vane pump with thermo-compensation Manfred Arnold, Hans Peter Kutzer 2017-09-26
9534519 Variable displacement vane pump with integrated fail safe function 2017-01-03