78 Utility Patents
#71 in Houston, TX
#597 in Texas
#8,743 in US
#15,985 in the World
Forward Citations = 3,401
Company Filing History:

Hughes Tool Company LLC

4. 2 out of 29
Brown Oil Tools, Inc.
5. 1 out of 831,952 patents
Other
where one patent can have more than one assignee
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