Granted Patent
Utility
US 6,697,501 · App. 09/725,958
Method for detecting velocity or displacement of an object over a surface by analyzing images of the surface
Inventors:
Nickolai R. Tevs, Dean Michael Weiten
Patented Case
View Patent ↗
Granted: Feb 24, 2004
Filed: Nov 30, 2000
Inventors
Nickolai R. Tevs
Dean Michael Weiten
Assignee (at issue)
Vansco Electronics LP
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.