F16K 31/42
By means of electrically-actuated members in the supply or discharge conduits of
Official title: by means of electrically-actuated members in the supply or discharge conduits of the fluid motor (F16K31/40 takes precedence)
F16K31/42 (By means of electrically-actuated members in the supply or discharge conduits of) appears on 414 US grants and 404 published applications in this corpus.
Search patents in F16K- Granted patents
- 414
- Published applications
- 404
- Assignees
- 266
- Inventors
- 865
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 6 | 0 |
| 2001 | 5 | 1 |
| 2002 | 3 | 1 |
| 2003 | 3 | 13 |
| 2004 | 9 | 7 |
| 2005 | 6 | 10 |
| 2006 | 11 | 6 |
| 2007 | 2 | 7 |
| 2008 | 2 | 6 |
| 2009 | 3 | 7 |
| 2010 | 9 | 11 |
| 2011 | 4 | 5 |
| 2012 | 4 | 5 |
| 2013 | 6 | 18 |
| 2014 | 9 | 11 |
| 2015 | 12 | 24 |
| 2016 | 13 | 16 |
| 2017 | 22 | 29 |
| 2018 | 17 | 29 |
| 2019 | 35 | 31 |
| 2020 | 33 | 43 |
| 2021 | 33 | 23 |
| 2022 | 21 | 23 |
| 2023 | 26 | 25 |
| 2024 | 29 | 31 |
| 2025 | 17 | 11 |
| 2026 | 14 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Valve device18 Aug 2026US 12,710,108 B2Kawasaki Jukogyo Kabushiki Kaisha
- Valve control device18 Aug 2026US 12,710,110 B2Alfa Laval Corporate AB
- Direct drive valve21 Jul 2026US 12,687,239 B2Microtecnica S.R.L.
- Pilot-control electromagnetic valve30 Jun 2026US 12,669,135 B2Hydac Fluidtechnik GmbH
- Pneumatic drain valve driving device2 Jun 2026US 12,644,267 B2Kohler (China) Investment Co., Ltd.
- Pneumatic drain valve driving device17 Sep 2026US 2026/0275694 A1Kohler (China) Investment Co., Ltd.
- Inflatable Systems with Electro-Pneumatic Valve Modules17 Sep 2026US 2026/0276102 A1Goodrich Corporation
- Methods of robust electrohydraulic pressure control with distributed damping17 Sep 2026US 2026/0276103 A1Sunstream Scientific, Inc.
- Fluid storage systems and monitoring27 Aug 2026US 2026/0251492 A1Darling Ingredients Inc.
- High flow intelligent positioner6 Aug 2026US 2026/0226999 A1Sti Co., Ltd.
Most cited
By later US patents
- Valve arrangement with main shifting valve and pilot control valve48US 4,796,662 ADaimler-Benz Aktiengesellschaft · 1989
- Proportional flow valve48US 5,294,089 AAutomatic Switch Company · 1994
- Digitally controllable flow rate valve48US 5,887,847 AAutomatic Switch Company · 1999
- Slow opening gas valve47US 6,263,908 B1Emerson Electric Co. · 2001
- Control valve and electrical and hydraulic control system42US 4,467,833 ANL Industries, Inc. · 1984