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Youchun Yan

GC Guangdong Roman Technology Co.: 19 patents #1 of 15Top 7%
LU Loders Croklaan Usa: 2 patents #5 of 24Top 25%
SP Stepan Specialty Products: 2 patents #3 of 16Top 20%
📍 Dongguan, CN: #58 of 2,387 inventorsTop 3%
Overall (All Time): #143,000 of 4,157,543Top 4%
27
Patents All Time

Issued Patents All Time

Showing 1–25 of 27 patents

Patent #TitleCo-InventorsDate
D1094880 Hair straightener Gang Li 2025-09-23
D1089828 Hair drier Jinhui Deng 2025-08-19
D1041075 Hair drier Gang Li, Yuzhen Deng 2024-09-03
D1037557 Hair dryer Gang Li, Yuzhen Deng 2024-07-30
D866750 Combined toothbrush and water pick unit Gang Li, Denglin Yang 2019-11-12
D864405 Laser hair removal device Yongjun Deng 2019-10-22
D863578 Laser hair removal device Yongjun Deng 2019-10-15
D863574 Skin care device Yongjun Deng 2019-10-15
10357890 Detachable floating shaver Guang Lu, Lili Yan 2019-07-23
D844246 Interchangeable electric grip Guang Lu 2019-03-26
D844242 Razor Guang Lu 2019-03-26
D838989 Hair dressing device Yongjun Deng 2019-01-29
D836837 Hairdressing device 2018-12-25
D826567 Hair dressing device Yongjun Deng 2018-08-28
D824595 Razor 2018-07-31
D824175 Electric toothbrush 2018-07-31
D824103 Razor 2018-07-24
D823542 Razor Guang Lu 2018-07-17
D819274 Razor 2018-05-29
D812301 Razor 2018-03-06
D806228 Water pick 2017-12-26
D797994 Hair curler 2017-09-19
9149053 Method for producing conjugated linoleic acid Jeroen Monster 2015-10-06
8642795 Process for producing a conjugated unsaturated fatty acid Shuhong Cheng, Jeroen Monster 2014-02-04
7910757 Process for the preparation of fatty acids Krishnadath Bhaggan, Genwang Zhang, Zheng Guo, Shuhong Cheng, Erik Schweitzer 2011-03-22