Granted Patent
Utility
US 6,487,535 · App. 09/186,234
Multi-channel audio encoder
Inventors:
Stephen Malcolm Smyth, Michael Henry Smyth, William Paul Smith
Patented Case
View Patent ↗
Granted: Nov 26, 2002
Filed: Nov 4, 1998
Inventors
Stephen Malcolm Smyth
Michael Henry Smyth
William Paul Smith
Assignee (at issue)
Digital Theater Systems, 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.