Granted Patent
Utility
US 6,338,099 · App. 09/349,376
Device code recognizing circuit
Inventor:
Thomas Liu
Patented Case
View Patent ↗
Granted: Jan 8, 2002
Filed: Jul 9, 1999
Inventor
Thomas Liu
Assignee (at issue)
BEHAVIOR TECH COMPUTER CORP.
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.