F41B 9/0037
Pressurisation by a piston
Official title: {Pressurisation by a piston}
F41B9/0037 (Pressurisation by a piston) appears on 85 US grants and 62 published applications in this corpus.
Search patents in F41B- Granted patents
- 85
- Published applications
- 62
- Assignees
- 46
- Inventors
- 109
- Latest grant
- 16 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 5 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 3 |
| 2006 | 1 | 4 |
| 2007 | 2 | 2 |
| 2008 | 1 | 4 |
| 2009 | 2 | 3 |
| 2010 | 3 | 4 |
| 2011 | 2 | 4 |
| 2012 | 2 | 5 |
| 2013 | 4 | 5 |
| 2014 | 3 | 4 |
| 2015 | 4 | 4 |
| 2016 | 1 | 2 |
| 2017 | 2 | 0 |
| 2018 | 1 | 2 |
| 2019 | 3 | 4 |
| 2020 | 1 | 1 |
| 2021 | 3 | 1 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 2 | 4 |
| 2025 | 1 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
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- Liquid replenishing mechanism and water gun18 Oct 2022US 11,473,871 B1
- Toy water gun for water streaming and spraying7 Dec 2021US 11,193,729 B2Shantou P&C Plastic Products Company Limited
- Hand-cranked Driving Device and Hand-cranked Water Gun25 Jun 2026US 2026/0177346 A1Shantou Barbosheng Technology Co., Ltd.
- Water gun11 Sep 2025US 2025/0283687 A1
- Liquid dispensing apparatus30 Jan 2025US 2025/0035402 A1Zuru (Singapore) Pte. Ltd.
- Water tag / water game26 Dec 2024US 2024/0424388 A1Watertag.Com Ltd.
- Diving mask17 Oct 2024US 2024/0343362 A1Dongguan Kuyou Sports Goods Co., Ltd
Most cited
By later US patents