24 Utility Patents
#589 in Houston, TX
#4,544 in Texas
#66,461 in US
#129,867 in the World
Forward Citations = 470
Company Filing History:

Varco Shaffer, Inc.

4. 2 out of 109
Cooper Cameron Corporation
5. 1 out of 90
Baroid Technology, Inc.
where one patent can have more than one assignee
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