Granted Patent
Utility
US 6,544,193 · App. 09/790,653
Noninvasive measurement of chemical substances
Inventor:
Marcio Marc Abreu
Patented Case
View Patent ↗
Granted: Apr 8, 2003
Filed: Feb 23, 2001
Inventor
Marcio Marc Abreu
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.