Granted Patent
Utility
US 6,795,820 · App. 09/884,109
Metasearch technique that ranks documents obtained from multiple collections
Inventor:
Russell Barnett
Patented Case
View Patent ↗
Granted: Sep 21, 2004
Filed: Jun 20, 2001
Inventor
Russell Barnett
Assignee (at issue)
Nextpage, 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.