Granted Patent
Utility
US 6,644,567 · App. 10/185,303
Remotely operated cutting mode shifting apparatus for a combination fluid jet decoking tool
Inventors:
Douglas Adams, Jay Roger Clark, Lloyd D. Hanson, Martin Prescott, Robert M. Purton, Richard Tran
Patented Case
View Patent ↗
Granted: Nov 11, 2003
Filed: Jun 28, 2002
Inventors
Douglas Adams
Jay Roger Clark
Lloyd D. Hanson
Martin Prescott
Robert M. Purton
Richard Tran
Assignee (at issue)
Flowserve Management Company
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.