135 Utility Patents
#3 in Spring, TX
#196 in Texas
#2,858 in US
#5,031 in the World
Forward Citations = 2,790
Company Filing History:

Baroid Technology, Inc.
Numar Corporation
4. 4 out of 319

5. 3 out of 1,238
Dresser Industries, Inc.
where one patent can have more than one assignee
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