F16K 41/16
Spindle sealings: with a flange on the spindle which rests on a
Official title: with a flange on the spindle which rests on a sealing ring
F16K41/16 (Spindle sealings: with a flange on the spindle which rests on a) appears on 30 US grants and 20 published applications in this corpus.
Search patents in F16K- Granted patents
- 30
- Published applications
- 20
- Assignees
- 25
- Inventors
- 66
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 2 |
| 2017 | 1 | 0 |
| 2018 | 1 | 2 |
| 2019 | 1 | 2 |
| 2020 | 1 | 1 |
| 2021 | 0 | 2 |
| 2022 | 1 | 0 |
| 2023 | 2 | 2 |
| 2024 | 2 | 4 |
| 2025 | 4 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Disengageable valve backseat system and method7 Jul 2026US 12,674,518 B2Baker Hughes Pressure Control LLC
- Valve packing apparatus and related methods15 Jul 2025US 12,359,747 B2Fisher Controls International LLC
- Ringless zero clearance closure27 May 2025US 12,313,186 B2Hamilton Sundstrand Corporation
- Valve packing apparatus and related methods4 Feb 2025US 12,215,801 B2Fisher Controls International LLC
- Disengageable valve backseat system and method14 Jan 2025US 12,196,332 B1Baker Hughes Oilfield Operations LLC
- Valve with combined rotation stop and stem blowout prevention9 Apr 2026US 2026/0098595 A1Belimo Holding AG
- Disengageable valve backseat system and method8 May 2025US 2025/0146588 A1Baker Hughes Oilfield Operations LLC
- Valve packing apparatus and related methods1 May 2025US 2025/0137553 A1Fisher Controls International LLC
- Disengageable valve backseat system and method26 Dec 2024US 2024/0426388 A1Baker Hughes Oilfield Operations LLC
- Ringless zero clearance closure14 Mar 2024US 2024/0084922 A1Hamilton Sundstrand Corporation
Most cited
By later US patents
- Balanced stem gate valve35US 4,281,819 A1981
- Actuator with nonelastomeric seal33US 4,630,636 ABaker CAC, Inc. · 1986
- Floating seal for fluid control devices31US 4,166,606 AThe Meyer Dairy Products Company · 1979
- Fluid flow control valve, principally of the ball or plug type28US 4,332,370 ASerck Industries Limited · 1982
- Heat responsive back seat arrangement for valve operator23US 4,245,661 ACombustion Engineering, Inc. · 1981