Granted Patent
Utility
US 6,545,209 · App. 09/899,490
Music content characteristic identification and matching
Inventors:
Frank Flannery, Paul Deeds, Christian Eric Schrock
Patented Case
View Patent ↗
Granted: Apr 8, 2003
Filed: Jul 5, 2001
Inventors
Frank Flannery
Paul Deeds
Christian Eric Schrock
Assignee (at issue)
Microsoft Corporation
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.