For the Inventor, By the Inventor

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Seoul, South Korea

Ht, Inc.

USPTO Granted Patents = 2

Trademarks = 1

Forward Citations = 11

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4 inventors (with patents filed for the assignee):

Jesper Osterman (1 out of 13 patents)

Terry J Scheffer (1 out of 30 patents)

Takaharu Hamada (1 out of 1 patent)

4. Se Jin Kang (1 out of 2 patents)

2 patents: Sort by Forward Citations

1. 8630037 - Optical shutter for day-night filter operation (2014-01-14),

2. 7349810 - Safety test support system, method and program (2008-03-25),

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USPTO Data Jan 1 1976 - Dec 23 2025

2 Patents

#1,170 in Seoul

#3,602 in South Korea

Seoul, South Korea

Ht, Inc.

Forward Citations = 11

4 inventors:

Jesper Osterman (1 out of 13 patents)

Terry J Scheffer (1 out of 30 patents)

Takaharu Hamada (1 out of 1 patent)

4. Se Jin Kang (1 out of 2 patents)

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