B81B 3/0024
Transducers for transforming thermal into mechanical energy or vice versa
Official title: {Transducers for transforming thermal into mechanical energy or vice versa, e.g. thermal or bimorph actuators (electric motors using thermal effects H02N10/00)}
B81B3/0024 (Transducers for transforming thermal into mechanical energy or vice versa) appears on 132 US grants and 121 published applications in this corpus.
Search patents in B81B- Granted patents
- 132
- Published applications
- 121
- Assignees
- 91
- Inventors
- 244
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 6 | 4 |
| 2002 | 7 | 4 |
| 2003 | 7 | 15 |
| 2004 | 13 | 8 |
| 2005 | 7 | 6 |
| 2006 | 6 | 5 |
| 2007 | 2 | 7 |
| 2008 | 3 | 6 |
| 2009 | 2 | 5 |
| 2010 | 6 | 6 |
| 2011 | 6 | 3 |
| 2012 | 6 | 1 |
| 2013 | 2 | 4 |
| 2014 | 8 | 3 |
| 2015 | 3 | 1 |
| 2016 | 3 | 3 |
| 2017 | 2 | 5 |
| 2018 | 0 | 9 |
| 2019 | 5 | 7 |
| 2020 | 8 | 5 |
| 2021 | 9 | 3 |
| 2022 | 4 | 4 |
| 2023 | 5 | 3 |
| 2024 | 2 | 1 |
| 2025 | 3 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- MEMS speaker and method of microfabrication of such a speaker20 Jan 2026US 12,528,104 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Optical MEMS based intracranial pressure and intracranial temperature monitor23 Dec 2025US 12,503,357 B2
- Resonant elements and oscillators19 Aug 2025US 12,391,543 B1SiTime Corporation
- Sensor unit, electronic apparatus, and moving object27 May 2025US 12,313,647 B2Seiko Epson Corporation
- Optical MEMS based monitoring system4 Jun 2024US 11,999,612 B2
- Micro-electro-mechanical system device and manufacturing methods of mems device and semiconductor device2 Apr 2026US 2026/0091975 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Microelectromechanical sensing device and manufacturing method thereof24 Apr 2025US 2025/0128935 A1Industrial Technology Research Institute
- Mems metamaterial and mems device incorporating the mems metamaterial27 Mar 2025US 2025/0102371 A1STMicroelectronics International N. V.
- Sensor unit, electronic apparatus, and moving object14 Mar 2024US 2024/0085452 A1Seiko Epson Corporation
- Method for manufacturing a micromechanical sensor26 Oct 2023US 2023/0339745 A1
Most cited
By later US patents
- Thermal arched beam microelectromechanical switching array171US 5,955,817 AMcnc · 1999
- Thermal arched beam microelectromechanical actuators129US 5,909,078 AMcnc · 1999
- Micromachined parylene membrane valve and pump128US 6,345,502 B1California Institute of Technology · 2002
- Thermal arched beam microelectromechanical devices and associated fabrication methods116US 5,994,816 AMcnc · 1999
- In-plane MEMS thermal actuator and associated fabrication methods114US 6,211,598 B1JDS Uniphase Corporation · 2001