Granted Patent
Utility
US 5,945,639 · App. 08/192,078
Cancellation of common-mode signals in digitizing tablet
Inventors:
Tony S. Partow, William K. Petty
Patented Case
View Patent ↗
Granted: Aug 31, 1999
Filed: Feb 4, 1994
Inventors
Tony S. Partow
William K. Petty
Assignee (at issue)
Hyundai Electronics America
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.