YL

Yutian Long

YK Ykk: 1 patents #472 of 845Top 60%
Overall (All Time): #2,625,493 of 4,157,543Top 65%
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Patent #TitleCo-InventorsDate
11839271 Slide fastener Takayuki Inukai, Aoi Takekawa, Yuko Fukuda, Mitsuo Tsuzuyama 2023-12-12