Granted Patent
Utility
US 6,397,228 · App. 09/282,342
Data enhancement techniques
Inventors:
Leonid Lamburt, Lazar Koyfman
Patented Case
View Patent ↗
Granted: May 28, 2002
Filed: Mar 31, 1999
Inventors
Leonid Lamburt
Lazar Koyfman
Assignee (at issue)
Verizon Laboratories 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.