F16K 1/42
Valve seats
Official title: Valve seats (for double-seat valves F16K1/44)
F16K1/42 (Valve seats) appears on 700 US grants and 808 published applications in this corpus.
Search patents in F16K- Granted patents
- 700
- Published applications
- 808
- Assignees
- 437
- Inventors
- 1,562
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 5 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 6 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 1 |
| 2002 | 3 | 7 |
| 2003 | 7 | 5 |
| 2004 | 7 | 8 |
| 2005 | 3 | 9 |
| 2006 | 7 | 12 |
| 2007 | 3 | 10 |
| 2008 | 6 | 13 |
| 2009 | 4 | 16 |
| 2010 | 11 | 10 |
| 2011 | 7 | 24 |
| 2012 | 10 | 16 |
| 2013 | 8 | 22 |
| 2014 | 19 | 28 |
| 2015 | 22 | 36 |
| 2016 | 30 | 45 |
| 2017 | 38 | 33 |
| 2018 | 32 | 44 |
| 2019 | 49 | 68 |
| 2020 | 41 | 71 |
| 2021 | 58 | 64 |
| 2022 | 69 | 51 |
| 2023 | 52 | 69 |
| 2024 | 55 | 54 |
| 2025 | 56 | 54 |
| 2026 | 34 | 38 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Valves and trim assemblies for valves6 Oct 2026US 12,753,840 B2Fisher Jeon Gas Equipment (Chengdu) Co., Ltd.
- Valve head structure and flow regulating valve with valve head structure29 Sep 2026US 12,747,794 B2Zhejiang Dunan Artificial Environment Co., Ltd.
- High-pressure fluid on/off valve and components and method of use of same29 Sep 2026US 12,747,803 B2Flow International Corporation
- Valve seat for damper with externally mounted valve15 Sep 2026US 12,736,102 B2Advanced Suspension Technology LLC
- Through-hardened valve seat for hydraulic fracturing1 Sep 2026US 12,723,662 B2Apex Industrial LLC
- Through-Hardened Valve Seat for Hydraulic Fracturing1 Oct 2026US 2026/0298349 A1Apex Industrial LLC
- Valve apparatus17 Sep 2026US 2026/0276086 A1MAC Valves, Inc.
- Shock absorber10 Sep 2026US 2026/0266350 A1Kyb Motorcycle Suspension Co., Ltd.
- Valve device and manufacturing method3 Sep 2026US 2026/0258871 A1Zhejiang Sanhua Automotive Components Co., Ltd.
- Reduced Stroke Control Cartridge For Hydraulic Valve20 Aug 2026US 2026/0243353 A1Giacomini S.p. A.
Most cited
By later US patents
- Valve having opposed curved sealing surfaces on a valve member and a valve seat to facilitate effective sealing160US 10,094,366 B2National Oilwell Varco, L. P. · 2018
- 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
- Pump assembly including fluid cylinder and tapered valve seats75US 10,240,597 B2S,P.M. Flow Control, Inc. · 2019