Granted Patent
Utility
US 6,078,672 · App. 08/852,245
Adaptive personal active noise system
Inventors:
William R. Saunders, Michael A. Vaudrey
Patented Case
View Patent ↗
Granted: Jun 20, 2000
Filed: May 6, 1997
Inventors
William R. Saunders
Michael A. Vaudrey
Assignee (at issue)
VIRGINIA TECH INTELLECTUAL PROPERTIES, INC.
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.