Granted Patent
Utility
US 6,607,607 · App. 09/799,990
Coiled tubing wellbore cleanout
Inventors:
Scott A. Walker, Jeff Li, Graham Wilde
Patented Case
View Patent ↗
Granted: Aug 19, 2003
Filed: Mar 6, 2001
Inventors
Scott A. Walker
Jeff Li
Graham Wilde
Assignee (at issue)
BJ SERVICES, LLC
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.