For the Inventor, By the Inventor

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Seongnam-si, South Korea

Viol Co. Ltd.

USPTO Granted Patents = 4

EPO Patents = 3

Trademarks = 7

Forward Citations = 0

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9 inventors (with patents filed for the assignee):

Sangjin Lee (2 out of 2 patents)

Ju Hwan Kim (2 out of 2 patents)

Yong Seok Park (1 out of 15 patents)

4. Jongju Na (1 out of 1 patent)

5. Suji Lee (1 out of 1 patent)

6. Dongkeun Shin (0 patent)

7. Heeyoung Lee (0 patent)

8. Jongju Na (0 patent)

4 patents: Sort by Forward Citations

1. 12447335 - Hand piece for skin treatment apparatus (2025-10-21),

2. 12440705 - Ultrasound apparatus with reciprocating transfer way of transducer (2025-10-14),

3. 12415095 - Ultrasound apparatus with two-row transfer way of transducer (2025-09-16),

4. 12262940 - Apparatus for treating submucosal tissue (2025-04-01),

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USPTO Data Jan 1 1976 - Dec 2 2025

4 Patents

#94 in Seongnam-si

#2,082 in South Korea

Seongnam-si, South Korea

Viol Co. Ltd.

Forward Citations = 0

9 inventors:

Sangjin Lee (2 out of 2 patents)

Ju Hwan Kim (2 out of 2 patents)

Yong Seok Park (1 out of 15 patents)

4. Jongju Na (1 out of 1 patent)

5. Suji Lee (1 out of 1 patent)

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