21 Utility Patents
#1,387 in Austin, TX
#5,440 in Texas
#80,312 in US
#157,948 in the World
Forward Citations = 298
Company Filing History:
Other

4. 2 out of 3
Chandler Instruments Company, LLC
5. 2 out of 1,238
Dresser Industries, Inc.
where one patent can have more than one assignee
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