GENEVA, Dec. 8 -- HANGZHOU RUIHENG ELECTROMAGNETIC TECHNOLOGY CO., LTD (Room 101, Building 4, No. 88 Binhe Road, Qingshanhu Street, Lin'an District (Self Declared)Hangzhou, Zhejiang 310000), 杭州锐恒电磁科技有限责任公司 (中国浙江省杭州市临安区青山湖街道滨河路88号4幢101室（自主申报）) filed a patent application (PCT/CN2025/073921) for "THREE-STAGE PILOT INVERSELY-PROPORTIONAL PRESSURE-REDUCING SOLENOID VALVE" on Jan 22, 2025. With publication no. WO/2025/246409, the details related to the paten...