7 Utility Patents
#486 in Zurich
#5,306 in Switzerland
#598,480 in the World
Forward Citations = 174
Company Filing History:
Chevron U.s.a. Inc.

Schlumberger Technology Corporation
4. 1 out of 832,680 patents
Other
5. 1 out of 4

where one patent can have more than one assignee
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