Granted Patent
Utility
US 6,278,937 · App. 09/541,053
Method and apparatus for controlling the position of floating rig
Inventors:
Shigeki Ishida, Susumu Tanaka
Patented Case
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Granted: Aug 21, 2001
Filed: Mar 31, 2000
Inventors
Shigeki Ishida
Susumu Tanaka
Assignee (at issue)
Mitsui Engineering & Shipbuilding Co., Ltd.
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.