Granted Patent
Utility
US 6,543,564 · App. 09/456,347
Balancing personal vehicle
Inventors:
Dean Kamen, Douglas Field, Richard Kurt Heinzmann
Patented Case
View Patent ↗
Granted: Apr 8, 2003
Filed: Dec 8, 1999
Inventors
Dean Kamen
Douglas Field
Richard Kurt Heinzmann
Assignee (at issue)
DEKA PRODUCTS LIMITED PARTNERSHIP
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.