IP Library › Granted Patent US 5,432,152
Granted Patent Utility
US 5,432,152 · App. 08/291,250

Invert drilling fluid

Inventors: Raymond B. Dawson, Joel F. Carpenter
Patented Case View Patent ↗
Granted: Jul 11, 1995 Filed: Aug 16, 1994
Inventors
Raymond B. Dawson
Joel F. Carpenter
Assignee (at issue)
ALBEMARLE CORPORATION

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Quick Facts
Patent No.
US 5,432,152
App. No.
08/291,250
Filed
1994-08-16
Granted
1995-07-11
Kind
A