Granted Patent
Utility
US 6,788,785 · App. 09/356,041
Stable adaptive filter and method
Inventor:
Heping Ding
Patented Case
View Patent ↗
Granted: Sep 7, 2004
Filed: Jul 16, 1999
Inventor
Heping Ding
Assignee (at issue)
Nortel Networks Limited
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.