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For the Inventor, By the Inventor

Seoul, South Korea

Protech Co., Ltd.


USPTO Granted Patents = 1

% Expired Patents = 100.0

Forward Citations = 0

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1 inventor (with patents filed for the assignee):

goldMedal Masahiro Kato (1 out of 192 patents)


1 patent:

1. 8998238 - Meal-serving stock shelf-equipped wheelchair (2015-04-07),
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USPTO Data Jan 1 1976 - Sep 22 2026

1 Patents

#1,937 in Seoul

#5,775 in South Korea

Seoul, KR
Seoul, South Korea

Protech Co., Ltd.

Forward Citations = 0

1 inventor:

goldMedal Masahiro Kato (1 out of 192 patents)

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