Granted Patent
Utility
US 6,413,297 · App. 09/626,857
Method and apparatus for treating pressurized drilling fluid returns from a well
Inventors:
Theodore Allen Morgan, David Speed, Carel Willem Jan Hoyer
Patented Case
View Patent ↗
Granted: Jul 2, 2002
Filed: Jul 27, 2000
Inventors
Theodore Allen Morgan
David Speed
Carel Willem Jan Hoyer
Assignee (at issue)
Northland Energy 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.