Granted Patent
Utility
US 6,340,596 · App. 09/248,316
Reagent composition for measuring hydrogen sulfide and method for measuring hydrogen sulfide
Inventor:
Masami Sugiyama
Patented Case
View Patent ↗
Granted: Jan 22, 2002
Filed: Feb 11, 1999
Inventor
Masami Sugiyama
Assignee (at issue)
FUJIREBIO 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.