F16K 39/022
Using balancing surfaces
Official title: {using balancing surfaces}
F16K39/022 (Using balancing surfaces) appears on 189 US grants and 185 published applications in this corpus.
Search patents in F16K- Granted patents
- 189
- Published applications
- 185
- Assignees
- 122
- Inventors
- 368
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 2 |
| 2003 | 3 | 1 |
| 2004 | 2 | 4 |
| 2005 | 1 | 4 |
| 2006 | 5 | 3 |
| 2007 | 1 | 2 |
| 2008 | 0 | 1 |
| 2009 | 2 | 5 |
| 2010 | 1 | 4 |
| 2011 | 1 | 0 |
| 2012 | 3 | 6 |
| 2013 | 6 | 2 |
| 2014 | 2 | 9 |
| 2015 | 5 | 6 |
| 2016 | 14 | 5 |
| 2017 | 4 | 8 |
| 2018 | 8 | 10 |
| 2019 | 14 | 20 |
| 2020 | 9 | 13 |
| 2021 | 12 | 16 |
| 2022 | 16 | 23 |
| 2023 | 18 | 10 |
| 2024 | 14 | 12 |
| 2025 | 12 | 11 |
| 2026 | 3 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Valves and trim assemblies for valves6 Oct 2026US 12,753,840 B2Fisher Jeon Gas Equipment (Chengdu) Co., Ltd.
- Electronic expansion valve21 Jul 2026US 12,687,242 B2Zhejiang Dunan Artificial Environment Co., Ltd.
- Flow control valve3 Feb 2026US 12,540,683 B2Danfoss A/S
- Proportional valve assembly for refrigerant16 Dec 2025US 12,498,151 B2ECO Holding 1 GmbH
- Automatic drain valve9 Dec 2025US 12,492,540 B2B/E Aerospace, Inc.
- Valve trim apparatus having grooves to reduce cavitation10 Sep 2026US 2026/0266396 A1Fisher Controls International LLC
- Reduced Stroke Control Cartridge For Hydraulic Valve20 Aug 2026US 2026/0243353 A1Giacomini S.p. A.
- Slam-shut valves and controller devices for slam-shut valves6 Aug 2026US 2026/0226998 A1Emerson Process Management Regulator Technologies, Inc.
- Valve with improved piston balancing16 Jul 2026US 2026/0201978 A1Danfoss A/S
- Pressure-balanced valve16 Jul 2026US 2026/0201979 A1Aerojet Rocketdyne, Inc.
Most cited
By later US patents
- Straight valve54US 6,116,571 ABurkert Werke GmbH & Co. · 2000
- Control valve49US 5,217,043 A1993
- Boom control valve36US 5,263,514 ADelavan Inc. · 1993
- Proportional type electromagnetic valve28US 4,314,585 AHitachi, Ltd. · 1982
- Poppet valve assembly apparatus having two simultaneously-seating heads27US 6,230,742 B1Delphi Technologies, Inc. · 2001