Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12375846 | Loudspeaker system having an acoustic meta material enclosure | — | 2025-07-29 |
| 11727909 | Meta material porous/poro-elastic sound absorbers | — | 2023-08-15 |
| 11721314 | Methods and systems for modifying acoustics of a loudspeaker back enclosure using active noise control | — | 2023-08-08 |
| 11640816 | Metamaterial acoustic impedance matching device for headphone-type devices | — | 2023-05-02 |
| 11443725 | Acoustic meta material passive spiral audio amplifier and a method to make the same | — | 2022-09-13 |
| 11381905 | Passive acoustic meta material audio amplifier and the method to make the same | — | 2022-07-05 |
| 11323798 | Metamaterial passive impedance matching device for a loudspeaker | — | 2022-05-03 |
| 11289786 | Metamaterial loudspeaker diaphragm | — | 2022-03-29 |
| 11172288 | Methods and systems for modifying acoustics of a loudspeaker back enclosure using active noise control | — | 2021-11-09 |
| 10950212 | Acoustic meta material passive spiral audio amplifier and a method to make the same | — | 2021-03-16 |
| 10735851 | Passive acoustic meta material audio amplifier and the method to make the same | — | 2020-08-04 |
| 10701478 | Meta acoustic horn system for audio amplification and the method to make the same | — | 2020-06-30 |
| 10616679 | Passive acoustic meta material audio amplifier and the method to make the same | — | 2020-04-07 |
| 10304490 | Acoustic holographic recording and reproduction system using meta material layers | — | 2019-05-28 |
| 9930443 | Active acoustic meta material loudspeaker system and the process to make the same | — | 2018-03-27 |
| 9759447 | Acoustic metamaterial noise control method and apparatus for ducted systems | — | 2017-09-12 |
| 9762994 | Active acoustic meta material loudspeaker system and the process to make the same | — | 2017-09-12 |
| 9353518 | Noise reduction system for composite structures | Cliff L. Chin | 2016-05-31 |
| 8770343 | Noise reduction system for composite structures | Cliff L. Chin | 2014-07-08 |
| 8657067 | Acoustic damping device for noise reduction | — | 2014-02-25 |
| 8479880 | Multifunctional nano-skin articles and methods | — | 2013-07-09 |
| 8192570 | Exhaust washed structure and associated composite structure and method of fabrication | Michael Leslie Hand, Buddhadev Chakrabarti, Leanne L. Lehman | 2012-06-05 |
| 8127889 | Noise reduction system for structures | — | 2012-03-06 |
| 8043690 | Exhaust washed structure and associated composite structure and method of fabrication | Michael Leslie Hand, Buddhadev Chakrabarti, Leanne L. Lehman | 2011-10-25 |
| 7913813 | Noise shield for a launch vehicle | — | 2011-03-29 |