F04B 33/00
Pumps actuated by muscle power
Official title: Pumps actuated by muscle power, e.g. for inflating
F04B33/00 (Pumps actuated by muscle power) appears on 553 US grants and 497 published applications in this corpus.
Search patents in F04B- Granted patents
- 553
- Published applications
- 497
- Assignees
- 190
- Inventors
- 580
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 6 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 8 | 0 |
| 1993 | 5 | 0 |
| 1994 | 11 | 0 |
| 1995 | 12 | 0 |
| 1996 | 13 | 0 |
| 1997 | 10 | 0 |
| 1998 | 12 | 0 |
| 1999 | 13 | 0 |
| 2000 | 24 | 0 |
| 2001 | 23 | 4 |
| 2002 | 19 | 10 |
| 2003 | 10 | 20 |
| 2004 | 17 | 25 |
| 2005 | 13 | 9 |
| 2006 | 7 | 17 |
| 2007 | 8 | 19 |
| 2008 | 6 | 28 |
| 2009 | 5 | 22 |
| 2010 | 13 | 16 |
| 2011 | 11 | 16 |
| 2012 | 16 | 25 |
| 2013 | 18 | 24 |
| 2014 | 19 | 28 |
| 2015 | 17 | 26 |
| 2016 | 18 | 23 |
| 2017 | 22 | 29 |
| 2018 | 24 | 32 |
| 2019 | 23 | 18 |
| 2020 | 23 | 20 |
| 2021 | 16 | 21 |
| 2022 | 19 | 18 |
| 2023 | 16 | 15 |
| 2024 | 13 | 16 |
| 2025 | 14 | 10 |
| 2026 | 11 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Impact absorption elements, systems, and methods of use6 Oct 2026US 12,753,820 B2
- Inflation head accommodating both Schrader and Presta valves29 Sep 2026US 12,746,893 B2Schenk Designs, LLC
- Single-material hand pump14 Jul 2026US 12,680,536 B2Ningbo Jinyu Technology Industry Co., Ltd.
- Pumping device14 Jul 2026US 12,680,537 B2
- Cyclic aspiration system with a non-powered internal structural impediment engaging with a clot assisting in capture26 May 2026US 12,636,421 B2Neuravi Limited
- Pump and accessory assembly integrated into a bicycle seatpost8 Oct 2026US 2026/0307436 A1
- Aspiration vacuum source13 Aug 2026US 2026/0232889 A1Neuravi Limited
- Auto-centering pump handle23 Jul 2026US 2026/0210346 A1
- A multi-gear inflation and deflation device for a swimming pool23 Apr 2026US 2026/0110294 A1Intex Industries Xiamen Co. Ltd.
- Pumping device2 Apr 2026US 2026/0092599 A1
Most cited
By later US patents
- Preloaded fluid bladder with integral pump137US 5,406,661 AReebok International Ltd. · 1995
- Inlet check valve for pump mechanism89US 5,372,487 ADielectrics Industries · 1994
- System and method for processor-based security85US 8,738,932 B2Teleputers, LLC · 2014
- Source of vacuum and device for maintaining a negative pressure in an enclosure81US 4,287,819 A1981
- Self contained sport ball inflation mechanism68US 6,287,225 B1Spalding Sports Worldwide, Inc. · 2001