ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,558,511, issued on Feb. 24, was assigned to Intellifai Health Inc. (Wellesley, Mass.).
"Portable oxygen concentrator" was invented by Yahuan Hu (Nanjing, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A portable oxygen concentrator, including: a battery box, a base assembly, a molecular sieve mechanism, a compressor mechanism, an oxygen storage mechanism, an outer cover, and an operation panel. The compressor mechanism includes a compressor main body and a compressor shell. A side wall of the compressor shell is provided with an opening, where a circuit board is fixed. The compressor main body includes a compressor and a vibration damping assembly...