Granted Patent
Utility
US 6,227,765 · App. 09/186,694
Pipeline device, a tool for the guide-in of a pipeline end and a method for the pull-in of a pipeline end
Inventor:
Knut von Trepka
Patented Case
View Patent ↗
Granted: May 8, 2001
Filed: Nov 6, 1998
Inventor
Knut von Trepka
Assignee (at issue)
Kvaerner Oilfield Products A.S.
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.