F16K 3/20
By movement of the seats
Official title: by movement of the seats
F16K3/20 (By movement of the seats) appears on 157 US grants and 133 published applications in this corpus.
Search patents in F16K- Granted patents
- 157
- Published applications
- 133
- Assignees
- 113
- Inventors
- 237
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 1 |
| 2002 | 1 | 3 |
| 2003 | 3 | 1 |
| 2004 | 0 | 3 |
| 2005 | 2 | 4 |
| 2006 | 3 | 1 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 3 | 2 |
| 2010 | 1 | 2 |
| 2011 | 0 | 1 |
| 2012 | 2 | 3 |
| 2013 | 2 | 2 |
| 2014 | 3 | 2 |
| 2015 | 2 | 1 |
| 2016 | 2 | 8 |
| 2017 | 6 | 7 |
| 2018 | 4 | 10 |
| 2019 | 8 | 8 |
| 2020 | 10 | 19 |
| 2021 | 16 | 8 |
| 2022 | 6 | 6 |
| 2023 | 12 | 8 |
| 2024 | 5 | 8 |
| 2025 | 9 | 10 |
| 2026 | 7 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and methods for purging an isolation valve with a liquid purge medium23 Jun 2026US 12,663,087 B2TapcoEnpro, LLC
- Non-circular body gate valve with skirt plate having spacers and method14 Apr 2026US 12,601,407 B2
- Gate valves with dynamic skirts and multiple energizers24 Mar 2026US 12,584,560 B2Bestway Oilfield, Inc.
- Concentric valve skirts3 Mar 2026US 12,565,933 B1Bestway Oilfield, Inc.
- Dynamic slab gate valves24 Feb 2026US 12,560,244 B2Bestway Oilfield, Inc.
- Dual seat assembly for bidirectional gate valve sealing24 Sep 2026US 2026/0287069 A1
- Large-diameter in-line seal comprising a sealing plate10 Sep 2026US 2026/0266380 A1Onis
- Gate valve for harsh service27 Aug 2026US 2026/0251223 A1Sayatva, LLC
- Dustproof gate valve13 Aug 2026US 2026/0235211 A1King Lai Hygienic Materials Co., Ltd
- Dynamic Slab Gate Valves25 Jun 2026US 2026/0177149 A1Bestway Oilfield, Inc.
Most cited
By later US patents
- Gate valve530US 6,299,133 B2SMC Corporation · 2001
- Valve108US 4,570,670 A1986
- Valve seat ring having a corner groove to receive an elastic seal ring101US 4,068,821 AACF Industries, Incorporated · 1978
- Valve with seat assembly71US 6,966,537 B2Worldwide Oilfield Machine, Inc. · 2005
- Slide valve66US 5,577,707 AVAT Holding AG · 1996