F16K 41/003
Spindle sealings: by fluid
Official title: {by fluid}
F16K41/003 (Spindle sealings: by fluid) appears on 40 US grants and 33 published applications in this corpus.
Search patents in F16K- Granted patents
- 40
- Published applications
- 33
- Assignees
- 30
- Inventors
- 77
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 4 |
| 2015 | 2 | 2 |
| 2016 | 5 | 1 |
| 2017 | 0 | 2 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 1 | 1 |
| 2021 | 0 | 2 |
| 2022 | 3 | 2 |
| 2023 | 6 | 7 |
| 2024 | 3 | 2 |
| 2025 | 2 | 3 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Packing system of a valve assembly25 Aug 2026US 12,716,521 B2Fisher Controls International LLC
- Packing system of a valve assembly25 Feb 2025US 12,234,926 B1Fisher Controls International LLC
- Butterfly valve7 Jan 2025US 12,188,577 B2Ckd Corporation
- Packing system and diagnostic method for a packing system of a valve assembly31 Dec 2024US 12,181,052 B2Fisher Controls International LLC
- Top entry valve for severe industrial applications31 Dec 2024US 12,181,063 B2Velan Inc.
- Gland repair tools, assemblies, and methods of repairing gland seals on high pressure valves18 Sep 2025US 2025/0289066 A1Enerpac Tool Group Corp.
- Packing system of a valve assembly15 May 2025US 2025/0155052 A1Fisher Controls International LLC
- Packing System of a Valve Assembly13 Feb 2025US 2025/0052340 A1Fisher Controls International LLC
- Butterfly valve2 May 2024US 2024/0142001 A1Ckd Corporation
- Packing System and Diagnostic Method for a Packing System of a Valve Assembly7 Mar 2024US 2024/0077140 A1Fisher Controls International LLC
Most cited
By later US patents
- Gas pressurized packing system for control valves39US 9,528,631 B2Fisher Controls International LLC · 2016
- Sealing system for a valve having biassed sealant under pressure35US 5,607,165 ACooper Cameron Corporation · 1997
- Packing gland assembly27US 4,177,998 AACF Industries, Incorporated · 1979
- Aseptic valve25US 4,325,401 AKagome Co., Ltd. · 1982
- Applicator for liquids such as adhesives25US 5,794,825 ALoctite (Ireland) Limited · 1998