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For the Inventor, By the Inventor

Ridgefield, CT, United States of America

Chestnut Springs LLC


USPTO Granted Patents = 3

Forward Citations = 28

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3 inventors (with patents filed for the assignee):

goldMedal Randall Cher Liang Cha (3 out of 27 patents)

silverMedal Sufan Siauw (3 out of 3 patents)

bronzeMedal Ralph T Webdale (3 out of 3 patents)


3 patents:

1. 11608472 - Method for imparting flame retardancy to a substrate material (2023-03-21),
2. 11326104 - Process for preparing flame retardant compositions (2022-05-10),
3. 10752840 - Flame retardant compositions and processes for preparation thereof (2020-08-25),
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USPTO Data Jan 1 1976 - Dec 23 2025

3 Patents

#16 in Ridgefield, CT

#1,345 in Connecticut

#71,950 in US

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Ridgefield, CT, United States of America

Chestnut Springs LLC

Forward Citations = 28

3 inventors:

goldMedal Randall Cher Liang Cha (3 out of 27 patents)

silverMedal Sufan Siauw (3 out of 3 patents)

bronzeMedal Ralph T Webdale (3 out of 3 patents)

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