F16K 5/222
For plugs with conical surfaces
Official title: {for plugs with conical surfaces}
F16K5/222 (For plugs with conical surfaces) appears on 12 US grants and 6 published applications in this corpus.
Search patents in F16K- Granted patents
- 12
- Published applications
- 6
- Assignees
- 7
- Inventors
- 22
- Latest grant
- 16 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 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 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 1 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Wedge torque assembly16 Dec 2025US 12,498,053 B2Crane ChemPharma & Energy Corp.
- Plug member of gas valve25 Jun 2019US 10,330,207 B2Grand Mate Co., Ltd.
- Plug member of gas valve26 Jun 2018US 10,006,550 B2Grand Mate Co., Ltd.
- Tank valve10 Nov 2015US 9,182,044 B1
- Tapered plug valve17 May 1994US 5,312,086 ABTR plc
- An improved conical element for gas passage in multi-stage gas taps2 Jan 2025US 2025/0003506 A1Turas Gaz ArmatüRleri San. Ve Tic. A.S.
- Wedge torque assembly22 Aug 2024US 2024/0280184 A1Crane ChemPharma & Energy Corp.
- Subterranean Valve Testing, Lubricating, and Sealing Device9 Jan 2020US 2020/0011152 A1
- Plug member of gas valve27 Apr 2017US 2017/0114906 A1Grand Mate Co., Ltd.
- Plug member of gas valve27 Apr 2017US 2017/0114908 A1Grand Mate Co., Ltd.
Most cited
By later US patents
- Valve stem seal25US 4,305,567 ARockwell International Corporation · 1981
- Rotary valve with stem seal means11US 4,174,092 ARockwell International Corporation · 1979
- Balanced plug valve10US 4,034,776 ARockwell International Corporation · 1977
- Hydraulic control valves8US 4,694,849 A1987
- Method of and apparatus for pressure buffering all leak paths of a lined plug valve5US 4,116,208 AXomox Corporation · 1978