GENEVA, Dec. 21 -- HUNAN DEMETER INSTRUMENTS CO., LTD. (Room 402, Building B5, MinmetalsYuelu DistrictChangsha, Hunan 410205), 湖南德米特仪器有限公司 (中国湖南省长沙市岳麓区五矿·麓谷科技产业园B5栋402) filed a patent application (PCT/CN2025/100556) for "IMPROVED HIGH-PRESSURE SWITCHING VALVE FOR LIQUID CHROMATOGRAPHY" on Jun 11, 2025. With publication no. WO/2025/256575, the details related to the patent application was published on Dec 18, 2025.
Notably, the patent application was submitted under the International Patent Classification (IPC) syst...