Columbus, OH, United States of America

Columbia Gas Service System Corporation


USPTO Granted Patents = 2

Forward Citations = 15

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1 inventor (with patents filed for the assignee):

goldMedal Klaus H Hemsath (2 out of 45 patents)


2 patents:

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USPTO Data Jan 1 1976 - Dec 2 2025

2 Patents

#248 in Columbus, OH

#3,555 in Ohio

#92,551 in US

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Columbus, OH, United States of America
Forward Citations = 15

1 inventor:

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