Acoustic particles and metamaterials for use as localization and contrast agents
US10254424B1 · kind B1 · utility
5Cited by
3References
7Claims
0Family size
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Key dates
| Filing date | Apr 6, 2015 |
| Grant date | Apr 9, 2019 |
| Priority date | — |
| Expiry date | Sep 13, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/42
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Acoustic particle metamaterials in Smart Proppants reflect sound waves at distinct frequency ranges when receiving sounds from an above ground or in-ground source. Sound receivers at separated locations receive the reflected sound waves at distinct times, providing information on location of the Smart Proppants, which are mixed with conventional proppants. The Smart Proppants prevent transmission of waves at precise ranges of frequencies and reflect those waves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.