Granted Patent
Utility
US 5,451,237 · App. 08/149,860
Compositions and methods for inhibiting and reducing lysozyme deposition on hydrophilic contact lenses using biocompatible colored compounds
Inventor:
Joseph G. Vehige
Patented Case
View Patent ↗
Granted: Sep 19, 1995
Filed: Nov 10, 1993
Inventor
Joseph G. Vehige
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.