Granted Patent
Utility
US 6,735,312 · App. 09/310,056
Cryptographic method for restricting access to transmitted programming content using ƒ-redundant establishment key combinations
Inventors:
Michel Ferreira Abdalla, Yuval Shavitt, Avishai Wool
Patented Case
View Patent ↗
Granted: May 11, 2004
Filed: May 11, 1999
Inventors
Michel Ferreira Abdalla
Yuval Shavitt
Avishai Wool
Assignee (at issue)
LUCENT TECHNOLOGIES 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.