F04B 45/041
Double acting plate-like flexible pumping member
Official title: {double acting plate-like flexible pumping member}
F04B45/041 (Double acting plate-like flexible pumping member) appears on 22 US grants and 24 published applications in this corpus.
Search patents in F04B- Granted patents
- 22
- Published applications
- 24
- Assignees
- 25
- Inventors
- 55
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 1 |
| 2004 | 2 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 4 |
| 2018 | 1 | 2 |
| 2019 | 1 | 1 |
| 2020 | 3 | 1 |
| 2021 | 2 | 4 |
| 2022 | 0 | 0 |
| 2023 | 0 | 2 |
| 2024 | 3 | 2 |
| 2025 | 1 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Production technique of synthetic jet actuators17 Feb 2026US 12,553,431 B2Actasys Inc.
- Fluid plate assembly25 Feb 2025US 12,237,754 B2ROLLS-ROYCE plc
- Tunnel boring machine having a device for detecting a content of critical gas3 Dec 2024US 12,158,071 B2Herrenknecht AG
- Piezoelectric pump with annular valve arrangement9 Jan 2024US 11,867,166 B2Murata Manufacturing Co., Ltd.
- Piezoelectric pump with annular valve arrangement9 Jan 2024US 11,867,167 B2Murata Manufacturing Co., Ltd.
- Novel design and production technique of synthetic jet actuators28 May 2026US 2026/0146595 A1Actasys Inc.
- Electrostatically actuated device21 Nov 2024US 2024/0384714 A1Laclaree
- Novel Design and Production Technique of Synthetic Jet Actuators3 Oct 2024US 2024/0328441 A1Actasys Inc.
- Fluid plate assembly22 Jun 2023US 2023/0198339 A1ROLLS-ROYCE plc
- Tunnel boring machine having a device for detecting a content of critical gas4 May 2023US 2023/0140625 A1Herrenknecht AG
Most cited
By later US patents
- Cascade compressor98US 5,078,581 AInternational Business Machines Corporation · 1992
- Apparatus for expressing milk39US 6,706,012 B22004
- Diaphragm vacuum pump33US 3,954,352 AToyota Jidosha Kogyo Kabushiki Kaisha · 1976
- Device for generating a medium stream28US 7,889,877 B2NXP B. V. · 2011
- Diaphragm type air pump24US 4,137,020 ANippondenso Co., Ltd. · 1979