Granted Patent
Utility
US 6,098,666 · App. 09/231,388
Dual coil tubing assembly
Inventors:
Jesse D. Wells, Andrew C. Brunn
Patented Case
View Patent ↗
Granted: Aug 8, 2000
Filed: Jan 13, 1999
Inventors
Jesse D. Wells
Andrew C. Brunn
Assignee (at issue)
Parker-Hannifin Corporation
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.