IP Library › Granted Patent US 6,715,570
Granted Patent Utility
US 6,715,570 · App. 10/065,100

Two stage downhole drilling fluid filter

Inventors: Geoff Downton, Christian Menger, Henry Phan
Patented Case View Patent ↗
Granted: Apr 6, 2004 Filed: Sep 17, 2002
Inventors
Geoff Downton
Christian Menger
Henry Phan
Assignee (at issue)
Schulumberger Technology Corporation

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Quick Facts
Patent No.
US 6,715,570
App. No.
10/065,100
Filed
2002-09-17
Granted
2004-04-06
Kind
B1