US Patent Issued to TECMEN ELECTRONICS on Oct. 20 for "Filter for welding mask" (Chinese Inventor)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. D1,155,077, issued on Oct. 20, was assigned to TECMEN ELECTRONICS Co. LTD (Nanjing, China).

"Filter for welding mask" was invented by Yali Si (Nanjing, China).

The patent was filed on March 20, 2025, under Application No. D/994,431.

*For further information, including images, charts and tables, please visit: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&co1=AND&d=PTXT&s1=D1155077&OS=D1155077&RS=D1155077

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