53 Utility Patents
#7 in Tulsa, OK
#79 in Oklahoma
#18,191 in US
#34,000 in the World
Forward Citations = 3,273
Company Filing History:

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John Zink Company, a Division of Koch Engineering Company, Inc.
4. 2 out of 153

5. 2 out of 47
Koch Engineering Company, Inc.
where one patent can have more than one assignee
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