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For the Inventor, By the Inventor

Indianapolis, IN, United States of America

Oak Security Group LLC


USPTO Granted Patents = 2

Trademarks = 1

Forward Citations = 5

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3 inventors (with patents filed for the assignee):

goldMedal Roger Keith Russell (2 out of 14 patents)

silverMedal Mark A Shumaker (2 out of 3 patents)

bronzeMedal Chung-Liang A Lin (2 out of 3 patents)


2 patents:

1. 11946284 - Door lock capable of showing locking or unlocking state (2024-04-02),
2. 11624208 - Door lock having a lighted display when in the locked position (2023-04-11),
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USPTO Data Jan 1 1976 - Oct 6 2026

2 Patents

#291 in Indianapolis, IN

#1,326 in Indiana

#94,782 in US

Indianapolis, IN (US)
Indianapolis, IN, United States of America

Oak Security Group LLC

Forward Citations = 5

3 inventors:

goldMedal Roger Keith Russell (2 out of 14 patents)

silverMedal Mark A Shumaker (2 out of 3 patents)

bronzeMedal Chung-Liang A Lin (2 out of 3 patents)

Please report any incorrect information to [email protected]
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