Inventor
BILL MARKUS
DE19 patents
⚠️ This page may combine multiple inventors who share the name “BILL MARKUS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HYDAC FLUIDTECHNIK GMBH
12 patentsUS10519988B2Dec 31, 2019
Pressure retaining valve
HYDAC FLUIDTECHNIK GMBH3 citations72
US9777844B2Oct 3, 2017
Valve, in particular pilot-operated proportional directional poppet valve
HYDAC FLUIDTECHNIK GMBH5 citations72
US9791061B2Oct 17, 2017
Valve
HYDAC FLUIDTECHNIK GMBH5 citations67
US10678273B2Jun 9, 2020
Pressure-regulating valve
HYDAC FLUIDTECHNIK GMBH3 citations65
US10400912B2Sep 3, 2019
Pilot-operated directional control valve
HYDAC FLUIDTECHNIK GMBH1 citations62
US7740224B2Jun 22, 2010
Valve
HYDAC FLUIDTECHNIK GMBH4 citations60
US11307599B2Apr 19, 2022
Device and valve for flow force compensation
HYDAC FLUIDTECHNIK GMBH0 citations51
US9664291B2May 30, 2017
Valve, in particular pilot-operated proportional directional poppet valve
HYDAC FLUIDTECHNIK GMBH1 citations51
US12378977B2Aug 5, 2025
Valve for providing a fluid-conducting connection between a pressure supply port and a consumer port or between the consumer port and a return port
HYDAC FLUIDTECHNIK GMBH0 citations46
US12241484B2Mar 4, 2025
Valve
HYDAC FLUIDTECHNIK GMBH0 citations44
US9709180B2Jul 18, 2017
Directional poppet valve
HYDAC FLUIDTECHNIK GMBH0 citations41
US10871177B2Dec 22, 2020
Discharge pressure scale and lifting-lowering device having a discharge pressure scale of this type
HYDAC FLUIDTECHNIK GMBH0 citations36
BILL MARKUS
4 patentsUS8662109B2Mar 4, 2014
Proportional pressure control valve
BILL MARKUS20 citations91
US8840081B2Sep 23, 2014
Piloted valve, particularly proportional throttle valve
BILL MARKUS6 citations71
US8746276B2Jun 10, 2014
Proportional throttle valve
BILL MARKUS5 citations71
US8833729B2Sep 16, 2014
Proportional throttle valve
BILL MARKUS0 citations49