F16K 31/124
Servo actuated
Official title: servo actuated
F16K31/124 (Servo actuated) appears on 254 US grants and 255 published applications in this corpus.
Search patents in F16K- Granted patents
- 254
- Published applications
- 255
- Assignees
- 175
- Inventors
- 497
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 1 |
| 2004 | 2 | 2 |
| 2005 | 1 | 4 |
| 2006 | 3 | 5 |
| 2007 | 3 | 4 |
| 2008 | 3 | 3 |
| 2009 | 1 | 7 |
| 2010 | 5 | 12 |
| 2011 | 4 | 7 |
| 2012 | 10 | 5 |
| 2013 | 4 | 9 |
| 2014 | 9 | 14 |
| 2015 | 11 | 17 |
| 2016 | 15 | 17 |
| 2017 | 16 | 21 |
| 2018 | 13 | 21 |
| 2019 | 21 | 24 |
| 2020 | 17 | 18 |
| 2021 | 21 | 13 |
| 2022 | 12 | 14 |
| 2023 | 17 | 12 |
| 2024 | 14 | 13 |
| 2025 | 8 | 6 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Valve control device18 Aug 2026US 12,710,110 B2Alfa Laval Corporate AB
- Pneumatic drain valve driving device2 Jun 2026US 12,644,267 B2Kohler (China) Investment Co., Ltd.
- Flow control valve with rolling diaphragm12 May 2026US 12,624,772 B2Griswold Controls, LLC
- Single stage servo valve assembly28 Apr 2026US 12,612,977 B2Hamilton Sundstrand Corporation
- Pipeline actuation system31 Mar 2026US 12,590,594 B2
- Electric bleed off valve assembly8 Oct 2026US 2026/0309251 A1FMC Technologies, Inc.
- Pneumatic drain valve driving device17 Sep 2026US 2026/0275694 A1Kohler (China) Investment Co., Ltd.
- Slam-shut valves and controller devices for slam-shut valves6 Aug 2026US 2026/0226998 A1Emerson Process Management Regulator Technologies, Inc.
- Pneumatic gas inlet valve with adjustable stop23 Jul 2026US 2026/0210442 A1VAT Holding AG
- Energy Storage and Control System for Pipeline Flow Control12 Feb 2026US 2026/0043422 A1
Most cited
By later US patents
- Balanced pilot operated check valve61US 8,262,058 B22012
- Electro/pneumatic proportional valve36US 4,638,837 AAllied Corporation · 1987
- Valve assembly with low resistance pilot shifting34US 8,167,586 B2Ingersoll-Rand Company · 2012
- Double acting pilot valve28US 4,491,154 AJoy Manufacturing Company · 1985
- Electronic pressure control pilot operated relief valve26US 6,189,563 B12001