Granted Patent
Utility
US 6,501,791 · App. 09/359,343
Method and apparatus for allocating tones to a plurality of users in a multi-tone modem communications system
Inventor:
Chien-Meen Hwang
Patented Case
View Patent ↗
Granted: Dec 31, 2002
Filed: Jul 21, 1999
Inventor
Chien-Meen Hwang
Assignee (at issue)
Legerity, 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.