Granted Patent
Utility
US 5,892,147 · App. 08/883,955
Method for the determination of inflow of oil and/or gas into a well
Inventors:
Jan Magne Garnes, Siamos Anastasios
Patented Case
View Patent ↗
Granted: Apr 6, 1999
Filed: Jun 27, 1997
Inventors
Jan Magne Garnes
Siamos Anastasios
Assignee (at issue)
NORSK HYDRO ASA
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.