Granted Patent
Utility
US 5,612,093 · App. 08/491,333
Titanium and zirconium complexes of carboxylic acids as corrosion inhibitors
Inventors:
Adalbert Braig, Markus Frey, Andreas Kramer
Patented Case
View Patent ↗
Granted: Mar 18, 1997
Filed: Jun 30, 1995
Inventors
Adalbert Braig
Markus Frey
Andreas Kramer
Assignee (at issue)
Ciba-Geigy
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.