B81B 2201/0271
Resonators
Official title: Resonators; ultrasonic resonators
B81B2201/0271 (Resonators) appears on 495 US grants and 609 published applications in this corpus.
Search patents in B81B- Granted patents
- 495
- Published applications
- 609
- Assignees
- 237
- Inventors
- 1,033
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 4 | 2 |
| 2003 | 3 | 8 |
| 2004 | 6 | 11 |
| 2005 | 5 | 9 |
| 2006 | 7 | 11 |
| 2007 | 12 | 19 |
| 2008 | 10 | 18 |
| 2009 | 7 | 16 |
| 2010 | 20 | 23 |
| 2011 | 18 | 22 |
| 2012 | 23 | 20 |
| 2013 | 12 | 13 |
| 2014 | 21 | 27 |
| 2015 | 19 | 29 |
| 2016 | 30 | 33 |
| 2017 | 26 | 29 |
| 2018 | 24 | 31 |
| 2019 | 30 | 26 |
| 2020 | 30 | 46 |
| 2021 | 20 | 52 |
| 2022 | 31 | 37 |
| 2023 | 46 | 35 |
| 2024 | 37 | 38 |
| 2025 | 32 | 33 |
| 2026 | 18 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Three dimensional stacked microstructures for use in gyroscopes and other devices1 Sep 2026US 12,723,874 B2The Regents of the University of Michigan
- Resonance device with anti-diffusion layer and resonance device manufacturing method25 Aug 2026US 12,719,443 B2Murata Manufacturing Co., Ltd.
- Micro-acoustic resonator springy anchor based on offset acoustic reflector trenches21 Jul 2026US 12,686,611 B2Texas Instruments Incorporated
- Micro electro-mechanical system sensor9 Jun 2026US 12,649,651 B2Samsung Electronics Co., Ltd.
- Method for forming semiconductor structure9 Jun 2026US 12,649,652 B2Taiwan Semiconductor Manufacturing Company.Ltd
- Ultrasonic transceiver with stacked die back cavity10 Sep 2026US 2026/0265045 A1
- Methods of Temperature Sensing in a MEMS Resonator Using Structural Resistance13 Aug 2026US 2026/0233989 A1Stathera IP Holdings Inc.
- Semiconductor device and method of forming the same13 Aug 2026US 2026/0239881 A1Taiwan Semiconductor Manufacturing Company.Ltd
- MEMS Structure with Via-based Thermistor6 Aug 2026US 2026/0225876 A1Stathera IP Holdings Inc.
- Implantable cardiovascular sensor11 Jun 2026US 2026/0157700 A1IP2Ipo Innovations Limited
Most cited
By later US patents
- Microfabricated ultrasonic transducers and related apparatus and methods123US 9,067,779 B1Butterfly Network, Inc. · 2015
- Piezoelectric MEMS integration with GaN technology116US 7,514,759 B1HRL Laboratories, LLC · 2009
- Method and product for fabricating a resonant-bridge microaccelerometer114US 4,893,509 AGeneral Motors Corporation · 1990
- Thin film resonators fabricated on membranes created by front side releasing84US 6,355,498 B1Agere Systems Guartian Corp. · 2002
- Temperature compensation for silicon MEMS resonator77US 6,987,432 B2Robert Bosch GmbH · 2006