ALEXANDRIA, Va., Oct. 27 -- United States Patent no. D1,155,881, issued on Oct. 27, was assigned to HANGZHOU HANGKE OPTOELECTRONICS Co. LTD. (Hangzhou, China).

"Bulb shell" was invented by Qianjun Yan (Hangzhou, China), Zhaozhang Zheng (Hangzhou, China) and Hai Wang (Hangzhou, China).

The patent was filed on Dec. 11, 2024, under Application No. D/977,939.

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