23 Utility Patents
#94 in Spring, TX
#4,815 in Texas
#70,755 in US
#138,545 in the World
Forward Citations = 1,111
Company Filing History:
Smith International, Inc.
Dresser Industries, Inc.
Varel International Ltd.
4. 1 out of 301
Hughes Tool Company LLC
5. 1 out of 1
Ots International, Inc.
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