Granted Patent
Utility
US 6,416,646 · App. 09/834,000
Method of making a material for establishing solid state contact for ion selective electrodes
Inventor:
Andy Chan
Patented Case
View Patent ↗
Granted: Jul 9, 2002
Filed: Apr 12, 2001
Inventor
Andy Chan
Assignee (at issue)
Bayer Aktiengesellschaft
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.