F16K 43/008
The main valve having a back-seat position
Official title: {the main valve having a back-seat position, e.g. to service the spindle sealing}
F16K43/008 (The main valve having a back-seat position) appears on 24 US grants and 19 published applications in this corpus.
Search patents in F16K- Granted patents
- 24
- Published applications
- 19
- Assignees
- 19
- Inventors
- 42
- Latest grant
- 13 Dec 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 2 | 0 |
| 2005 | 1 | 4 |
| 2006 | 2 | 1 |
| 2007 | 2 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 1 | 2 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 1 |
| 2021 | 1 | 4 |
| 2022 | 3 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Control device for an exhaust gas-conducting section of an exhaust turbocharger13 Dec 2022US 11,525,390 B2IHI Charging Systems International GmbH
- Gate valve with improved bonnet seal assembly4 Oct 2022US 11,460,114 B2
- Valve30 Aug 2022US 11,428,344 B2Kitz Corporation
- Gate valve with disk replacement structure19 Oct 2021US 11,149,861 B2
- Valve assembly15 Sep 2020US 10,774,933 B2Marshall Excelsior Company
- Gate valve with improved bonnet seal assembly29 Jul 2021US 2021/0231222 A1FMC Technologies, Inc.
- Valve17 Jun 2021US 2021/0180721 A1Kitz Corporation
- Gate valve with disk replacement structure10 Jun 2021US 2021/0172537 A1
- Control device for an exhaust gas-conducting section of an exhaust turbocharger20 May 2021US 2021/0148279 A1IHI Charging Systems International GmbH
- Self-cleaning valve13 Aug 2020US 2020/0256481 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Pressure balanced gate valve having selective actuator systems84US 4,230,299 APetroleum Designers, Inc. · 1980
- Stem packing assembly for gate valves and means for removal32US 4,135,546 AACF Industries, Incorporated · 1979
- Non-turbulent shut-off valve27US 4,776,365 A1988
- Unitary slot valve actuator with dual valves23US 6,913,243 B1Lam Research Corporation · 2005
- Back seat rising stem gate valve22US 5,908,046 AERC Industries, Inc. · 1999