While drilling valve system

Assignee

• Schlumberger Technology

Inventors

• Kent David Harms (27 patents)
• Jeremy Murphy (8 patents)
• Michael J. Stucker (13 patents)
• William E. Brennan, III (21 patents)
• Albert Hoefel (28 patents)
• Steven G. Villareal (41 patents)
• Julian Pop (109 patents)

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