Acoustaical devices employing phase change materials
US10602250B2 · kind B2 · utility
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14References
27Claims
0Family size
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Key dates
| Filing date | Oct 13, 2016 |
| Grant date | Mar 24, 2020 |
| Priority date | — |
| Expiry date | Apr 29, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2201/105
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The disclosure is related to materials that includes phase change materials. The materials are suitable for use in acoustical devices such as headphones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.