Granted Patent
Utility
US 6,757,692 · App. 09/591,317
Systems and methods for structured vocabulary search and classification
Inventors:
Charles Frederick Lee Davis, Kim L. Ong
Patented Case
View Patent ↗
Granted: Jun 29, 2004
Filed: Jun 9, 2000
Inventors
Charles Frederick Lee Davis
Kim L. Ong
Assignee (at issue)
NORTHROP GRUMMAN CORPORATION
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.