ALEXANDRIA, Va., July 28 -- United States Patent no. 12,691,529, issued on July 28, was assigned to TXC Corp. (Taipei City, Taiwan).

"Processing method of single-crystal quartz material" was invented by Cheng-Wei Lin (Taipei City, Taiwan) and Wun-Kai Wang (Taipei City, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A processing method of single-crystal quartz material includes the following steps. Determining an area to be processed where twin crystals are prone to occur on the single-crystal quartz material. Using a heater to heat an area to be processed on the single-crystal quartz material, so that processing difficulty of the area to be processed is reduced. Using a laser to process the single-cry...