Park Ridge, IL, United States of America

Conversion Sound Inc.


USPTO Granted Patents = 3


Trademarks = 1

Forward Citations = 12

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5 inventors (with patents filed for the assignee):

goldMedal Stavros Basseas (3 out of 8 patents)

silverMedal Michael John Kilhefner (1 out of 1 patent)

bronzeMedal Steven C Hannibal (1 out of 2 patents)

4 James R Anderson (1 out of 19 patents)

5 Michael Kilhefner (0 patent)


3 patents:

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USPTO Data Jan 1 1976 - Dec 9 2025

3 Patents

#9 in Park Ridge, IL

#3,358 in Illinois

#71,968 in US

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Park Ridge, IL, United States of America
Forward Citations = 12

5 inventors:

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