F04B 43/046
With piezoelectric drive
Official title: {with piezoelectric drive}
F04B43/046 (With piezoelectric drive) appears on 595 US grants and 718 published applications in this corpus.
Search patents in F04B- Granted patents
- 595
- Published applications
- 718
- Assignees
- 277
- Inventors
- 1,056
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 7 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 7 | 0 |
| 2001 | 8 | 2 |
| 2002 | 8 | 9 |
| 2003 | 9 | 13 |
| 2004 | 13 | 17 |
| 2005 | 3 | 21 |
| 2006 | 7 | 23 |
| 2007 | 19 | 17 |
| 2008 | 7 | 22 |
| 2009 | 6 | 37 |
| 2010 | 11 | 16 |
| 2011 | 18 | 19 |
| 2012 | 17 | 19 |
| 2013 | 13 | 37 |
| 2014 | 15 | 25 |
| 2015 | 21 | 22 |
| 2016 | 25 | 18 |
| 2017 | 11 | 42 |
| 2018 | 20 | 37 |
| 2019 | 43 | 51 |
| 2020 | 30 | 52 |
| 2021 | 45 | 57 |
| 2022 | 43 | 45 |
| 2023 | 57 | 39 |
| 2024 | 41 | 33 |
| 2025 | 32 | 30 |
| 2026 | 23 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Micromembrane pumping device29 Sep 2026US 12,747,726 B2Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e. V.
- Piezoelectric MEMS-based active cooling for heat dissipation in compute devices22 Sep 2026US 12,745,638 B2Frore Systems Inc.
- Liquid feeding device and inkjet recording apparatus15 Sep 2026US 12,736,043 B2KYOCERA Document Solutions Inc.
- Tuned micro check valves and pumps15 Sep 2026US 12,736,044 B2Q T Flow Ltd
- Diaphragm pump, liquid discharge head, and liquid discharge apparatus25 Aug 2026US 12,716,409 B2Canon Kabushiki Kaisha
- Actuator8 Oct 2026US 2026/0314264 A1Murata Manufacturing Co., Ltd.
- Diaphragm pump, liquid ejection head and liquid ejection apparatus17 Sep 2026US 2026/0273948 A1
- Fluid control device17 Sep 2026US 2026/0275978 A1Murata Manufacturing Co., Ltd.
- Haptic feedback device for virtual reality (vr) and augmented reality (ar)30 Jul 2026US 2026/0218697 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Fluid driving mechanism2 Jul 2026US 2026/0185515 A1TDK Taiwan Corp.
Most cited
By later US patents
- Two-valve thin plate micropump365US 5,171,132 ASeiko Epson Corporation · 1992
- Valve arrangement of microstructured components360US 5,029,805 ADragerwerk Aktiengesellschaft · 1991
- Two valve micropump with improved outlet343US 5,224,843 AWestonbridge International Limited · 1993
- Micropump316US 5,759,014 AWestonbridge International Limited · 1998
- Micropump having a constant output304US 5,085,562 AWestonbridge International Limited · 1992