Granted Patent
Utility
US 5,425,105 · App. 08/053,728
Multiple adaptive filter active noise canceller
Inventors:
Allen Kwok Wah Lo, Paul L. Feintuch
Patented Case
View Patent ↗
Granted: Jun 13, 1995
Filed: Apr 27, 1993
Inventors
Allen Kwok Wah Lo
Paul L. Feintuch
Assignee (at issue)
Hughes Aircraft Company
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.