Y10T 137/7777
Both valves spring biased
Y10T137/7777 (Both valves spring biased) appears on 91 US grants and 43 published applications in this corpus.
Search patents in Y10T- Granted patents
- 91
- Published applications
- 43
- Assignees
- 66
- Inventors
- 153
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 1 |
| 2003 | 2 | 4 |
| 2004 | 1 | 2 |
| 2005 | 4 | 6 |
| 2006 | 6 | 4 |
| 2007 | 2 | 1 |
| 2008 | 6 | 5 |
| 2009 | 4 | 5 |
| 2010 | 1 | 0 |
| 2011 | 2 | 2 |
| 2012 | 3 | 2 |
| 2013 | 4 | 0 |
| 2014 | 2 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 4 |
| 2018 | 0 | 1 |
| 2019 | 5 | 2 |
| 2020 | 1 | 0 |
| 2021 | 1 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 2 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Check valve and use thereof in a fluid system25 Aug 2026US 12,716,509 B2Vitesco Technologies GmbH
- Multi-function valve assemblies19 Aug 2025US 12,392,417 B2Ford Global Technologies, LLC
- Bidirectional pressure relief valve12 Jul 2022US 11,384,857 B1Sun Hydraulics, LLC
- In-port sequence valve24 Aug 2021US 11,097,389 B2Vektek, Inc.
- Bi-directional inline check valve10 Nov 2020US 10,830,365 B2Hamilton Sundstrand Corporation
- Multi-function valve assemblies6 Nov 2025US 2025/0341260 A1Ford Global Technologies, LLC
- Check valve and use thereof in a fluid system3 Oct 2024US 2024/0328524 A1Vitesco Technologies GmbH
- Multi-function valve assemblies19 Sep 2024US 2024/0309958 A1Ford Global Technologies, LLC
- In-port sequence valve25 Jul 2019US 2019/0224794 A1Vektek, Inc.
- Bi-directional inline check valve2 May 2019US 2019/0128436 A1Goodrich Aerospace Services Private Limited
Most cited
By later US patents
- Check valve75US 5,183,075 A1993
- Diaphragm based spontaneous inflation inhibitor in a pump for an inflatable prosthesis69US 6,533,719 B2AMS Research Corporation · 2003
- Bidirectional valve and fuel shut-off device48US 5,582,198 AToyoda Gosei Co., Ltd. · 1996
- Fuel injection pump for internal combustion engines47US 4,467,767 ARobert Bosch GmbH · 1984
- Pressure valve assembly for a fuel tank filler neck cap45US 4,498,493 AStant Inc. · 1985