Granted Patent
Utility
US 6,336,121 · App. 09/047,286
Method and apparatus for securing and accessing data elements within a database
Inventors:
Patrick A. Lyson, Ron Vandergeest
Patented Case
View Patent ↗
Granted: Jan 1, 2002
Filed: Mar 24, 1998
Inventors
Patrick A. Lyson
Ron Vandergeest
Assignee (at issue)
Entrust Technologies 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.