Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12215017 | Vibration sensor | Alison HAKE | 2025-02-04 |
| 12058939 | Piezoelectric MEMS microphone | Robert J. Littrell | 2024-08-06 |
| 11950052 | Acoustic transducer with gap-controlling geometry and method of manufacturing an acoustic transducer | Robert J. Littrell | 2024-04-02 |
| 11871664 | Staggering of openings in electrodes for crack mitigation | Robert J. Littrell | 2024-01-09 |
| 11665968 | Piezoelectric MEMS microphone | Robert J. Littrell | 2023-05-30 |
| 11617041 | Piezoelectric MEMS device for producing a signal indicative of detection of an acoustic stimulus | Robert J. Littrell, Ronald Gagnon | 2023-03-28 |
| 11259124 | Acoustic transducer with gap-controlling geometry and method of manufacturing an acoustic transducer | Robert J. Littrell | 2022-02-22 |
| 11088315 | Piezoelectric MEMS microphone | Robert J. Littrell | 2021-08-10 |
| 10964880 | Piezoelectric MEMS microphone | Robert J. Littrell | 2021-03-30 |
| 10825982 | Piezoelectric micro-electro-mechanical systems (MEMS) device with a beam strengthening physical element | Robert J. Littrell, Craig Core, Yu Hui, Wang Kyung Sung | 2020-11-03 |
| 10715922 | Piezoelectric mems device for producing a signal indicative of detection of an acoustic stimulus | Robert J. Littrell, Ronald Gagnon | 2020-07-14 |
| 10566517 | Staggering of openings in electrodes for crack mitigation | Robert J. Littrell | 2020-02-18 |
| 10284960 | Acoustic transducer with gap-controlling geometry and method of manufacturing an acoustic transducer | Robert J. Littrell | 2019-05-07 |
| 10170685 | Piezoelectric MEMS microphone | Robert J. Littrell | 2019-01-01 |
| 10112047 | Cochlear implant | Katherine Elizabeth Knisely | 2018-10-30 |
| 10001391 | Adjusting resonant frequencies based on feedback networks | Robert J. Littrell | 2018-06-19 |
| 9937345 | Cochlear implant | Katherine Elizabeth Knisely | 2018-04-10 |
| 9853201 | Piezoelectric MEMS microphone | Robert J. Littrell | 2017-12-26 |
| 9055372 | Acoustic transducer with gap-controlling geometry and method of manufacturing an acoustic transducer | Robert J. Littrell | 2015-06-09 |
| 8896184 | Piezoelectric MEMS microphone | Robert J. Littrell | 2014-11-25 |
| 8531088 | Piezoelectric MEMS microphone | Robert J. Littrell | 2013-09-10 |
| 8130986 | Trapped fluid microsystems for acoustic sensing | Robert D. White | 2012-03-06 |
| 7696710 | Method of sensing an amount of moisture on a surface of a substrate with temperature compensation | Colin Byrne, Brent W. Pankey, Mitchell M. Rohde | 2010-04-13 |