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For the Inventor, By the Inventor

Suzhou, China

Ptot (Suzhou) Inc.


USPTO Granted Patents = 2

Forward Citations = 0

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4 inventors (with patents filed for the assignee):

goldMedal Chung-Han Lu (2 out of 3 patents)

silverMedal Hsiao-Ching Shen (2 out of 4 patents)

bronzeMedal Chun-Cheng Hsieh (2 out of 2 patents)

4.  Ming-Zhan Wang (2 out of 2 patents)


2 patents:

1. 11971565 - Absorption type near infrared filter (2024-04-30),
2. 11378727 - Absorption type near infrared filter (2022-07-05),
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USPTO Data Jan 1 1976 - Oct 6 2026

2 Patents

#197 in Suzhou

#11,528 in China

Suzhou, CN
Suzhou, China

Ptot (Suzhou) Inc.

Forward Citations = 0

4 inventors:

goldMedal Chung-Han Lu (2 out of 3 patents)

silverMedal Hsiao-Ching Shen (2 out of 4 patents)

bronzeMedal Chun-Cheng Hsieh (2 out of 2 patents)

4.  Ming-Zhan Wang (2 out of 2 patents)

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