Granted Patent
Utility
US 6,167,399 · App. 09/073,113
Join index for relational databases
Inventor:
Chi-Kim Hoang
Patented Case
View Patent ↗
Granted: Dec 26, 2000
Filed: May 5, 1998
Inventor
Chi-Kim Hoang
Assignee (at issue)
NCR 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.