HS

Hans Schwelm

HR Hydrolux S.A R.L.: 6 patents #1 of 5Top 20%
BM Barmag Barmer Maschinenfabrik: 2 patents #18 of 68Top 30%
📍 Kaarst, DE: #17 of 185 inventorsTop 10%
Overall (All Time): #462,415 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
9395014 Pilot-control stage for a proportionally controlled high-pressure hydraulic valve 2016-07-19
5975134 Valve system 1999-11-02
5236015 Position-controlled proportional directional valve 1993-08-17
5211196 Proportional seat-type 4-way valve 1993-05-18
5178358 Adjustable proportional throttle-valve with feedback 1993-01-12
5144983 Position-controlled proportional directional valve 1992-09-08
4724864 Two-way flow control valve 1988-02-16
4711267 Hydraulic control block 1987-12-08
4662600 Adjustable throttle valve 1987-05-05
4572234 Hydraulic flow control valve 1986-02-25
4476893 Hydraulic flow control valve 1984-10-16