Granted Patent
Utility
US 6,721,928 · App. 10/323,565
Verification utilizing instance-based hierarchy management
Inventors:
Christophe Pierrat, Chin-Hsen Lin, Fang-Cheng Chang, Yao-Ting Wang
Patented Case
View Patent ↗
Granted: Apr 13, 2004
Filed: Dec 17, 2002
Inventors
Christophe Pierrat
Chin-Hsen Lin
Fang-Cheng Chang
Yao-Ting Wang
Assignee (at issue)
Numerical Technologies, 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.