Granted Patent
Utility
US 6,420,976 · App. 09/208,243
Underwater hydrocarbon production systems
Inventors:
Christopher David Baggs, Steven Robert Powell
Patented Case
View Patent ↗
Granted: Jul 16, 2002
Filed: Dec 9, 1998
Inventors
Christopher David Baggs
Steven Robert Powell
Assignee (at issue)
ABB Seatec Limited
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.