Granted Patent
Utility
US 6,311,134 · App. 09/247,058
Process and apparatus for comparing chemical products
Inventor:
Matthew D. Sorenson
Patented Case
View Patent ↗
Granted: Oct 30, 2001
Filed: Feb 9, 1999
Inventor
Matthew D. Sorenson
Assignee (at issue)
MALLINCKRODT LLC
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.