Granted Patent
Utility
US 6,636,969 · App. 09/299,327
Digital signatures having revokable anonymity and improved traceability
Inventors:
Bjorn Markus Jakobsson, Joy Colette Mueller
Patented Case
View Patent ↗
Granted: Oct 21, 2003
Filed: Apr 26, 1999
Inventors
Bjorn Markus Jakobsson
Joy Colette Mueller
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.