Granted Patent
Utility
US 6,476,511 · App. 09/787,632
Floating apparatus and method for extracting power from sea waves
Inventors:
Richard Yemm, David Pizer, Chris Retzler
Patented Case
View Patent ↗
Granted: Nov 5, 2002
Filed: May 30, 2001
Inventors
Richard Yemm
David Pizer
Chris Retzler
Assignee (at issue)
Ocean Power Delivery 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.