Credit to reddit user no_1_specific for digging this up.
The patent for LK99 (Room-temperature and atmospheric-pressure superconductor) can be found at the provided link.
Towards the bottom of this document, there is a section that lists patent citations. Notably, US20190058105A1 is a patent for a Piezoelectricity-induced Room Temperature Superconductor. This patent was filed by Dr. Salvatore Pais.
The patents of Dr. Pais can be found at the provided link here. Keen observers will note that Dr. Pais and the U.S. Navy hold a patent for a craft. This craft uses an inertial mass reduction device, coupled with high-frequency gravitational wave generators.
The intersection of these technologies is indeed fascinating, making it an intriguing topic for a thought experiment. The question arises: could LK99 be a side effect of reverse engineering programs and the use of meta-materials?
Dr. Salvatore Pais is an American aerospace engineer and inventor, currently working for the United States Space Force. He formerly worked at the Naval Air Station Patuxent River.
It’s worth mentioning that there are two podcast appearances that deserve a listen.