F16K 15/20
Check valves: specially designed for inflatable bodies
Official title: specially designed for inflatable bodies, e.g. tyres (connecting valves to inflatable bodies B60C29/00)
F16K15/20 (Check valves: specially designed for inflatable bodies) appears on 581 US grants and 555 published applications in this corpus.
Search patents in F16K- Granted patents
- 581
- Published applications
- 555
- Assignees
- 309
- Inventors
- 840
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 9 | 0 |
| 1978 | 6 | 0 |
| 1979 | 5 | 0 |
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 6 | 0 |
| 1993 | 4 | 0 |
| 1994 | 8 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 10 | 0 |
| 1999 | 9 | 0 |
| 2000 | 15 | 0 |
| 2001 | 13 | 1 |
| 2002 | 12 | 10 |
| 2003 | 10 | 18 |
| 2004 | 10 | 21 |
| 2005 | 16 | 23 |
| 2006 | 27 | 21 |
| 2007 | 12 | 22 |
| 2008 | 13 | 16 |
| 2009 | 7 | 8 |
| 2010 | 8 | 19 |
| 2011 | 5 | 16 |
| 2012 | 15 | 14 |
| 2013 | 12 | 20 |
| 2014 | 18 | 18 |
| 2015 | 22 | 30 |
| 2016 | 13 | 28 |
| 2017 | 28 | 31 |
| 2018 | 27 | 39 |
| 2019 | 34 | 39 |
| 2020 | 27 | 27 |
| 2021 | 29 | 31 |
| 2022 | 24 | 15 |
| 2023 | 26 | 28 |
| 2024 | 18 | 20 |
| 2025 | 20 | 21 |
| 2026 | 14 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Valve connector6 Oct 2026US 12,753,864 B2Co-Luck Enterprise Co., Ltd.
- Inflation head accommodating both Schrader and Presta valves29 Sep 2026US 12,746,893 B2Schenk Designs, LLC
- Air valve, inflation, and deflation apparatuses and methods29 Sep 2026US 12,747,801 B2Belgravia Wood Limited
- Pressure regulating valve structure15 Sep 2026US 12,736,146 B2Intex Marketing Ltd.
- Tire valve1 Sep 2026US 12,723,670 B2The Legion Engineering Corporation
- Magnetic inflation device and inflating and deflating method thereof1 Oct 2026US 2026/0298360 A1
- Balloon Garland Assembly And Balloon Assemblies Therefor24 Sep 2026US 2026/0283281 A1Totali EZ Balloons LLC
- Inflatable water sports device, valve device and valve system24 Sep 2026US 2026/0287075 A1Boards & More GmbH
- Air valve and filled product containing the same24 Sep 2026US 2026/0287076 A1Broad Design Co., Ltd.
- Valve connector17 Sep 2026US 2026/0276117 A1Co-Luck Enterprise Co., Ltd.
Most cited
By later US patents
- Check valve for fluid bladders188US 5,144,708 ADielectrics Industries · 1992
- Check valve for fluid bladders103US 5,564,143 ADielectrics Industries · 1996
- Inflatable boat valve and mounting therefor102US 4,478,587 A1984
- Shoe having an inflatable bladder99US 7,337,560 B2Reebok International Ltd. · 2008
- Shoe having an inflatable bladder96US 6,785,985 B2Reebok International Ltd. · 2004