Granted Patent
Utility
US 6,172,987 · App. 09/190,389
Switching compression routines with no loss of data
Inventors:
Kaveh Razazian, Xiao Ling Chang, Lois M. GREER
Patented Case
View Patent ↗
Granted: Jan 9, 2001
Filed: Nov 10, 1998
Inventors
Kaveh Razazian
Xiao Ling Chang
Lois M. GREER
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.