For the Inventor, By the Inventor

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Hwasung, South Korea

Won St Co., Ltd.

USPTO Granted Patents = 3

Trademarks = 3

Forward Citations = 5

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6 inventors (with patents filed for the assignee):

Taek Won Lee (3 out of 3 patents)

Gi Dong Son (2 out of 2 patents)

Dong Hyup Nam (2 out of 2 patents)

4. Hyeok Do Kwon (2 out of 2 patents)

5. Martin R Elliott (1 out of 13 patents)

6. William John Fosnight (1 out of 122 patents)

3 patents: Sort by Forward Citations

1. 12247613 - Ball spline having reinforcement bush part (2025-03-11),

2. 12129889 - Ball spline having bypass track (2024-10-29),

3. 8573847 - Linear motion guide unit (2013-11-05),

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USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#1 in Hwasung

#2,641 in South Korea

Hwasung, South Korea

Won St Co., Ltd.

Forward Citations = 5

6 inventors:

Taek Won Lee (3 out of 3 patents)

Gi Dong Son (2 out of 2 patents)

Dong Hyup Nam (2 out of 2 patents)

4. Hyeok Do Kwon (2 out of 2 patents)

5. Martin R Elliott (1 out of 13 patents)

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