Granted Patent
Utility
US 6,385,603 · App. 09/332,544
Joined table expression optimization by query transformation
Inventors:
Yao-Ching Chen, Fen-Ling Lin, Jerry Mukai, Hong Sang Tie, Yun Wang
Patented Case
View Patent ↗
Granted: May 7, 2002
Filed: Jun 14, 1999
Inventors
Yao-Ching Chen
Fen-Ling Lin
Jerry Mukai
Hong Sang Tie
Yun Wang
Assignee (at issue)
International Business Machines 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.