ALEXANDRIA, Va., June 18 -- United States Patent no. 12,325,966, issued on June 10, was assigned to WAVEBREAKER AB (Lerum, Sweden).
"Interference noise-control unit" was invented by Tony Johansson (Lerum, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure relates to an interference noise-control unit comprising a housing to be secured on a sound arresting wall. The housing comprises a hollow compartment comprising at least one first channel and at least one second channel, wherein the first channel has a first channel height A and a first channel length B, and wherein the second channel has a second channel height A' and a second channel length B', and wherein the first channel height A is ...