US Patent Issued to DELL PRODUCTS on Sept. 29 for "Additive manufacturing of resonant metasurfaces for noise cancellation" (Canadian Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,749,472, issued on Sept. 29, was assigned to DELL PRODUCTS LP (Round Rock, Texas).

"Additive manufacturing of resonant metasurfaces for noise cancellation" was invented by Tejinder Singh (Kanata, Canada), Navjot Kaur Khaira (Kanata, Canada) and Kan Wang (Ottawa).

According to the abstract* released by the U.S. Patent & Trademark Office: "The technology described herein is directed towards metasurfaces arranged with unit cells for narrowband sound absorption, in which the unit cells are based on the principles of Helmholtz resonators. A deeply subwavelength sound absorbing unit-cell is designed and constructed based on a desired resonance frequency. The unit-cell includes a neck port...