GENEVA, Dec. 8 -- BEIJING GREATAR TECH CO., LTD. (Room 102, 1st Floor, Building 1, No.1 Qiaoyuan Road, Shilong Industrial Zone,Mentougou District, Beijing 102300), 北京至格科技有限公司 (中国北京市门头沟区石龙工业区桥园路1号1幢1层102室) filed a patent application (PCT/CN2025/097003) for "GRATING WAVEGUIDE DEVICE THAT REDUCES RAINBOW ARTIFACT, AND WAVEGUIDE SYSTEM" on May 23, 2025. With publication no. WO/2025/247117, the details related to the patent application was published on Dec 04, 2025.

Notably, the patent application was submitted under the Internatio...