21 Utility Patents
#23 in Aberdeen
#2,246 in United Kingdom
#157,806 in the World
Forward Citations = 315
Company Filing History:
Smith International, Inc.

Weatherford/lamb, Inc.
4. 2 out of 832,575 patents
Other
5. 2 out of 15
Sondex Limited
where one patent can have more than one assignee
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