F16K 15/034
Weight-loaded
Official title: {weight-loaded}
F16K15/034 (Weight-loaded) appears on 48 US grants and 40 published applications in this corpus.
Search patents in F16K- Granted patents
- 48
- Published applications
- 40
- Assignees
- 38
- Inventors
- 121
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 4 |
| 2018 | 2 | 3 |
| 2019 | 4 | 0 |
| 2020 | 0 | 2 |
| 2021 | 1 | 0 |
| 2022 | 7 | 10 |
| 2023 | 4 | 4 |
| 2024 | 3 | 4 |
| 2025 | 5 | 3 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for determining valve flutter25 Nov 2025US 12,480,598 B2Hamilton Sundstrand Corporation
- Blocking valve4 Nov 2025US 12,460,740 B2
- Two-pin clapper check valve9 Sep 2025US 12,410,869 B2SPM Oil & Gas Inc.
- Check valve for cryogenic fluid4 Mar 2025US 12,241,557 B2Dong-A University Research Foundation for Industry-Academy Cooperation
- Magnetic pressure retaining control device18 Feb 2025US 12,228,217 B2Shenzhen University
- Flapper valve for aircraft engine18 Jun 2026US 2026/0168445 A1Pratt & Whitney Canada Corp.
- Swing check valve28 Aug 2025US 2025/0271070 A1DeZURIK, Inc.
- Systems and methods for determining valve flutter17 Apr 2025US 2025/0122951 A1Hamilton Sundstrand Corporation
- Check valves6 Mar 2025US 2025/0075813 A1
- Blocking valve23 May 2024US 2024/0167575 A1
Most cited
By later US patents
- Flapper valves with hydrofoil and valve systems56US 11,306,835 B1KHOLLE Magnolia 2015, LLC · 2022
- Arcuate swing check valve52US 4,396,034 A1983
- Check valve assembly with removable seat36US 5,056,548 AKF Industries, Inc. · 1991
- Check valve actuator26US 4,669,500 AWheatley Pump and Valve, Inc. · 1987
- Swing check valve with internally balanced disc25US 4,353,390 AAnchor/Darling Valve Company · 1982