Reza Ghaffarivardavagh

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Boston, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Air-transparent selective sound silencer using ultra-open metamaterial
- Patent number 11,846,217
- Issue date Dec 19, 2023
- Trustees of Boston University
- Xin Zhang
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Air-transparent selective sound silencer using ultra-open metamaterial
- Patent number 10,947,876
- Issue date Mar 16, 2021
- Trustees of Boston University
- Xin Zhang
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES

Patents Applicationslast 30 patents

Information Patent Application
AIR-TRANSPARENT SELECTIVE SOUND SILENCER USING ULTRA-OPEN METAMATERIAL
- Publication number 20240077008
- Publication date Mar 7, 2024
- Trustees of Boston University
- Xin Zhang
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
AIR-TRANSPARENT SELECTIVE SOUND SILENCER USING ULTRA-OPEN METAMATERIAL
- Publication number 20210087957
- Publication date Mar 25, 2021
- Trustees of Boston University
- Xin Zhang
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
AIR-TRANSPARENT SELECTIVE SOUND SILENCER USING ULTRA-OPEN METAMATERIAL
- Publication number 20200043456
- Publication date Feb 6, 2020
- BOSTON UNIVERSITY
- Xin Zhang
- G10 - MUSICAL INSTRUMENTS ACOUSTICS