Application

13889940 · Additives for Oil-Based Drilling Fluids

Filed 2013-05-08 · Granted · Patent 9328280 (2016-05-03) The official file ↗The patent and its PDF ↗ · Art unit 1768 · Examiner Alicia Bland Typical · CPC C09K 8/34 · Chevron Phillips Chemical Company LP · CHEVRON PHILLIPS CHEMICAL COMPANY

Office actions

first was Non-final rejection

RCEs

no appeal

To first action

13.1 mo

to disposition 35.8 mo

Statutes raised

103 112

4 actions read

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