GENEVA, April 13 -- 3M INNOVATIVE PROPERTIES COMPANY (3M Center, Post Office Box 33427, Saint Paul, Minnesota55133-3427), CHENG, Liang (8 Xing Yi Road, Maxdo Centre, 38/FChangning District, Shanghai 200336) filed a patent application (PCT/CN2024/123197) for "AIR FILTER FOR EXTERNAL INSTALLATION ATOP AN AIR-HANDLING UNIT" on Oct 03, 2024. With publication no. WO/2026/073400, the details related to the patent application was published on Apr 09, 2026.

Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intellectual Property Organization (WIPO).

Inventor(s): FOX, Andrew R. (3M Center, Post Office Box 33427, Saint Paul, Minnesota55133-3427), CHENG, Liang (8 Xi...