Schwelm; Hans
Patent Applications and Registrations
Patent applications and USPTO patent grants for Schwelm; Hans.The latest application filed is for "pilot-control stage for a proportionally controlled high-pressure hydraulic valve".
- Schwelm; Hans - Kaarst DE
- Schwelm; Hans - Luxembourg-Dommeldange LU
- Schwelm; Hans - Howald G.D. LU
| Patent | Date |
|---|---|
| Pilot-control stage for a proportionally controlled high-pressure hydraulic valve Grant 9,395,014 - Schwelm July 19, 2 | 2016-07-19 |
| Pilot-control Stage For A Proportionally Controlled High-pressure Hydraulic Valve App 20140225016 - Schwelm; Hans | 2014-08-14 |
| Proportional seat-type 4-way valve Grant 5,211,196 - Schwelm May 18, 1 | 1993-05-18 |
| Two-way flow control valve Grant 4,724,864 - Schwelm February 16, 1 | 1988-02-16 |
| Hydraulic control block Grant 4,711,267 - Schwelm December 8, 1 | 1987-12-08 |
| Adjustable throttle valve Grant 4,662,600 - Schwelm May 5, 1 | 1987-05-05 |
| Hydraulic flow control valve Grant 4,572,234 - Schwelm February 25, 1 | 1986-02-25 |
| Hydraulic flow control valve Grant 4,476,893 - Schwelm October 16, 1 | 1984-10-16 |
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