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For the Inventor, By the Inventor

West Carrollton, OH, United States of America

Impact Devices Incorporated


USPTO Granted Patents = 3

% Expired Patents = 33.3

Forward Citations = 8

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3 inventors (with patents filed for the assignee):

goldMedal Dwight Tangren (1 out of 2 patents)

silverMedal David B Mohler (1 out of 13 patents)

bronzeMedal Kenneth L Roy (1 out of 4 patents)


3 patents:

1. 8522676 - Gravity-induced impact nutcracker (2013-09-03),
2. 6469885 - Power saving circuit for solenoid driver (2002-10-22),
3. 5527117 - Braille printing solenoid housing (1996-06-18),
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USPTO Data Jan 1 1976 - Sep 22 2026

3 Patents

#3 in West Carrollton, OH

#2,860 in Ohio

#73,717 in US

West Carrollton, OH (US)
West Carrollton, OH, United States of America

Impact Devices Incorporated

Forward Citations = 8

3 inventors:

goldMedal Dwight Tangren (1 out of 2 patents)

silverMedal David B Mohler (1 out of 13 patents)

bronzeMedal Kenneth L Roy (1 out of 4 patents)

Please report any incorrect information to [email protected]
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