F16K 25/005
Particular materials for seats or closure elements
Official title: {Particular materials for seats or closure elements}
F16K25/005 (Particular materials for seats or closure elements) appears on 623 US grants and 746 published applications in this corpus.
Search patents in F16K- Granted patents
- 623
- Published applications
- 746
- Assignees
- 444
- Inventors
- 1,565
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 6 | 0 |
| 1991 | 6 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 8 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 7 | 0 |
| 1998 | 7 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 5 |
| 2002 | 12 | 6 |
| 2003 | 5 | 7 |
| 2004 | 6 | 12 |
| 2005 | 9 | 7 |
| 2006 | 5 | 13 |
| 2007 | 2 | 8 |
| 2008 | 7 | 14 |
| 2009 | 2 | 11 |
| 2010 | 4 | 12 |
| 2011 | 8 | 16 |
| 2012 | 7 | 16 |
| 2013 | 9 | 28 |
| 2014 | 19 | 43 |
| 2015 | 25 | 33 |
| 2016 | 39 | 55 |
| 2017 | 27 | 47 |
| 2018 | 31 | 43 |
| 2019 | 45 | 57 |
| 2020 | 44 | 51 |
| 2021 | 46 | 45 |
| 2022 | 34 | 46 |
| 2023 | 43 | 49 |
| 2024 | 47 | 36 |
| 2025 | 42 | 58 |
| 2026 | 32 | 28 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Valve device15 Sep 2026US 12,736,139 B2Fujikin Incorporated
- Fluid device8 Sep 2026US 12,729,770 B2Surpass Industry Co., Ltd.
- Hydrogen gas valve device and hydrogen gas valve body equipped therewith1 Sep 2026US 12,723,660 B2Kawasaki Jukogyo Kabushiki Kaisha
- Through-hardened valve seat for hydraulic fracturing1 Sep 2026US 12,723,662 B2Apex Industrial LLC
- Valve core with microporous structure and solenoid valve using valve core25 Aug 2026US 12,716,511 B2Suzhou Rayontech Technology Co., Ltd
- Through-Hardened Valve Seat for Hydraulic Fracturing1 Oct 2026US 2026/0298349 A1Apex Industrial LLC
- High-temperature diaphragm valve1 Oct 2026US 2026/0298355 A1Kitz Sct Corporation
- Valve seat with embedded structure and related methods17 Sep 2026US 2026/0276098 A1Vulcan Industrial Holdings, LLC
- Gate valve, gate valve seat system, and method27 Aug 2026US 2026/0251221 A1Supreme Production Services, Inc.
- Valve seat assemblies, valve assemblies, and fluid ends for high power pumps and related methods6 Aug 2026US 2026/0226987 A1Vulcan Industrial Holdings, LLC
Most cited
By later US patents
- Valve seats for use in fracturing pumps131US 9,822,894 B2S,P.M. Flow Control, Inc. · 2017
- Fluid end with carbide valve seat and adhesive dampening interface116US 9,435,454 B22016
- Seat support and threaded seat for valve with quadruple seat110US 6,641,112 B22003
- Ceramic disc faucet valve90US 4,651,770 ASpeakman Company · 1987
- Wear resistant diamond cladding84US 4,732,364 AAmeron Iron Works USA, Inc. · 1988