F16K 31/1635
For rotating valves
Official title: {for rotating valves}
F16K31/1635 (For rotating valves) appears on 223 US grants and 169 published applications in this corpus.
Search patents in F16K- Granted patents
- 223
- Published applications
- 169
- Assignees
- 148
- Inventors
- 418
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 2 | 0 |
| 1989 | 6 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 7 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 5 | 0 |
| 2000 | 10 | 0 |
| 2001 | 6 | 0 |
| 2002 | 0 | 0 |
| 2003 | 4 | 5 |
| 2004 | 3 | 7 |
| 2005 | 4 | 7 |
| 2006 | 5 | 2 |
| 2007 | 1 | 4 |
| 2008 | 3 | 5 |
| 2009 | 3 | 2 |
| 2010 | 5 | 6 |
| 2011 | 3 | 5 |
| 2012 | 4 | 6 |
| 2013 | 3 | 3 |
| 2014 | 3 | 6 |
| 2015 | 4 | 7 |
| 2016 | 4 | 15 |
| 2017 | 6 | 16 |
| 2018 | 14 | 16 |
| 2019 | 14 | 4 |
| 2020 | 10 | 15 |
| 2021 | 9 | 5 |
| 2022 | 8 | 12 |
| 2023 | 7 | 9 |
| 2024 | 8 | 7 |
| 2025 | 8 | 4 |
| 2026 | 4 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Valve control device18 Aug 2026US 12,710,110 B2Alfa Laval Corporate AB
- Diagnostic method, diagnostic device and process valve assembly11 Aug 2026US 12,704,198 B2Festo AG & Co.
- Valve with capability to self-anticipate failure3 Mar 2026US 12,565,940 B2Kuqi Investment Co., Ltd.
- Variable venturi valve10 Feb 2026US 12,546,412 B1
- Fluid density valve, method, and system9 Sep 2025US 12,410,680 B2Baker Hughes Oilfield Operations LLC
- Torque limiter coupling assembly for valve actuators15 Jan 2026US 2026/0016102 A1Watts Regulator Co.
- Valve Actuator Device for Fluid Flow Control20 Nov 2025US 2025/0354622 A1Batfer Investment S.A.
- Rotary actuated shear and seal valve2 Oct 2025US 2025/0305385 A1Nxl Technologies Inc.
- Fluid density valve, method, and system16 Jan 2025US 2025/0020042 A1Baker Hughes Oilfield Operations LLC
- Torque limiter for valve actuators9 Jan 2025US 2025/0012374 A1Watts Regulator Co.
Most cited
By later US patents
- Rotatable ball valve apparatus and method98US 4,681,133 AHydril Company · 1987
- Rotatable ball valve apparatus and method82US 4,703,807 AHydril Company · 1987
- Valve actuator66US 3,982,725 AKeystone International, Inc. · 1976
- Valve operators64US 4,869,459 A1989
- Remote control actuating device for a valve42US 4,647,003 AGeorg Fischer Aktiengesellschaft · 1987