Granted Patent
Utility
US 6,729,839 · App. 09/829,416
Toroidal and compound vortex attractor
Inventors:
Lewis Illingworth, David Reinfeld
Patented Case
View Patent ↗
Granted: May 4, 2004
Filed: Apr 9, 2001
Inventors
Lewis Illingworth
David Reinfeld
Assignee (at issue)
Vortex, LLC
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.