GENEVA, Nov. 6 -- CHONGYOU HI-TECH ELECTRONIC FUEL INJECTION SYSTEM CO., LTD. filed a patent application (CN2025/147716) for “PLUNGER SLEEVE STRUCTURE COMPRISING MULTI-STAGE SEALING RING FOR FUEL SUPPLY PUMP, AND FUEL PUMPING SYSTEM ASSEMBLY”. With publication no. WO/2026/227879, here are the other details related to the patent application:
Kind: Initial Publication with ISR [A1]
IPC: F04B 53/00
Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intellectual Property Organization (WIPO).
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