Granted Patent
Utility
US 6,116,354 · App. 09/274,458
Rotary steerable system for use in drilling deviated wells
Inventor:
Jean Buytaert
Patented Case
View Patent ↗
Granted: Sep 12, 2000
Filed: Mar 19, 1999
Inventor
Jean Buytaert
Assignee (at issue)
Weatherford/Lamb, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.