F16K 31/0686
Braking, pressure equilibration, shock absorbing
Official title: {Braking, pressure equilibration, shock absorbing}
F16K31/0686 (Braking, pressure equilibration, shock absorbing) appears on 581 US grants and 544 published applications in this corpus.
Search patents in F16K- Granted patents
- 581
- Published applications
- 544
- Assignees
- 292
- Inventors
- 1,266
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 7 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 6 | 0 |
| 1993 | 4 | 0 |
| 1994 | 5 | 0 |
| 1995 | 8 | 0 |
| 1996 | 12 | 0 |
| 1997 | 5 | 0 |
| 1998 | 6 | 0 |
| 1999 | 11 | 0 |
| 2000 | 12 | 0 |
| 2001 | 12 | 1 |
| 2002 | 7 | 8 |
| 2003 | 11 | 9 |
| 2004 | 16 | 30 |
| 2005 | 17 | 15 |
| 2006 | 12 | 15 |
| 2007 | 10 | 17 |
| 2008 | 8 | 8 |
| 2009 | 6 | 16 |
| 2010 | 5 | 13 |
| 2011 | 5 | 13 |
| 2012 | 12 | 32 |
| 2013 | 19 | 19 |
| 2014 | 17 | 19 |
| 2015 | 30 | 34 |
| 2016 | 21 | 28 |
| 2017 | 23 | 26 |
| 2018 | 33 | 40 |
| 2019 | 30 | 44 |
| 2020 | 34 | 35 |
| 2021 | 40 | 39 |
| 2022 | 33 | 31 |
| 2023 | 22 | 28 |
| 2024 | 22 | 9 |
| 2025 | 16 | 10 |
| 2026 | 9 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Filling an armature chamber in an actuator18 Aug 2026US 12,712,105 B2Magnet-Schultz GmbH & Co. KG
- Braking system for a vehicle30 Jun 2026US 12,668,286 B2WABTEC Hauts-de-France
- Solenoid valve for brake system23 Jun 2026US 12,662,100 B2Hl Mando Corporation
- Solenoid valve26 May 2026US 12,638,095 B2Hl Mando Corporation
- Electromagnetic actuator assembly, pressure control module, and vehicle braking system having an electromagnetic actuator assembly7 Apr 2026US 12,594,922 B2KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
- Solenoid valve25 Jun 2026US 2026/0177163 A1Andreas Lupold Hydrotechnik GmbH
- Fuel cut-off valve18 Jun 2026US 2026/0168587 A1Unick Corporation
- Solenoid Valve7 May 2026US 2026/0126126 A1Zhejiang Dunan Artificial Environment Co., Ltd.
- Hydraulic system for working machine, working machine, and method of controlling working machine26 Mar 2026US 2026/0085496 A1Kubota Corporation
- Fuel Pump26 Feb 2026US 2026/0055751 A1Hitachi Astemo, Ltd.
Most cited
By later US patents
- Diaphragm valve with reliability enhancements for atomic layer deposition386US 7,021,330 B2Planar Systems, Inc. · 2006
- Poppet diaphragm valve110US 5,007,458 AParker-Hannifin Corporation · 1991
- Suspension control apparatus utilizing a PWM type proportional solenoid valve109US 6,067,490 ATokico Ltd. · 2000
- Electrically controlled pressure relief valve and system and method for controlling same95US 7,299,112 B2ActiveShock, Inc. · 2007
- Solenoid valve, especially an outlet valve for infusion water80US 4,826,132 AFirma A. U. K. Muller GmbH & Co. KG · 1989