Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
CH

Cheonghwan Hwang

AMAmorepacific: 8 patents #57 of 696Top 9%
SCSentronix Co.: 3 patents #2 of 25Top 8%
Seoul, KR: #7,153 of 39,741 inventorsTop 20%
Overall (All Time): #639,798 of 4,157,543Top 20%
8 Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
10111805 Facial massager Changman Park, Changkeun Lee, Taehong Shin, Seunghwan Yi, Wooram Park +4 more 2018-10-30
9962315 Electric module for stimulating skin Chang-Man Park, Chil-Sung Lee, Changkeun Lee, Taehong Shin, Seunghwan Yi +4 more 2018-05-08
9744096 Face massaging device Changman Park, Changkeun Lee, Taehong Shin, Seunghwan Yi, Wooram Park +2 more 2017-08-29
9717376 Facial cleansing apparatus using electric motor and spring, control method therefor, and recording medium recording program for performing control method Sohee KIM, Wooram Park, Yoon Hee Lee, Hyeseong Nam, Chilsung Lee +2 more 2017-08-01
9578998 Skin washing machine using brushless DC motor, method of controlling same, and program recording medium for performing the controlling method Wooram Park, Sohee KIM, Yoonhee Lee, Hyeseong Nam, Kyung Shin Park +1 more 2017-02-28
9364649 Container for skin care with heating massage function Wooram Park, So Hee Kim, Yoonhee Lee, Hyesung Nam 2016-06-14
9314095 Hairdressing device having gear module for reducing rotational speed Hyeseong Nam, Wooram Park, So Hee Kim, Yoonhee Lee 2016-04-19
8505556 Tapping applicator Wooram Park, Jungsun Choi, Yoonkyun Hwang, Jinwoong Kim 2013-08-13