GENEVA, Dec. 8 -- BEIJING GRAND HITEK.CO., LTD. (Room 01, 1st To 2nd Floor, Building 1, No. 1 Kechuang 15th StreetBeijing Economic and Technological Development Zone, Daxing DistrictBeijing 100176), 北京通嘉宏瑞科技有限公司 (中国北京市大兴区北京经济技术开发区科创十五街1号1幢1至2层01) filed a patent application (PCT/CN2025/094806) for "RELAY CONTROL CIRCUIT AND CONTROL METHOD" on May 14, 2025. With publication no. WO/2025/246933, the details related to the patent application was published on Dec 04, 2025.
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