Granted Patent
Utility
US 5,837,723 · App. 08/270,589
Pharmaceutical composition useful for treating ophthalmological diseases
Inventor:
Toshiaki Watanabe
Patented Case
View Patent ↗
Granted: Nov 17, 1998
Filed: Jul 5, 1994
Inventor
Toshiaki Watanabe
Assignee (at issue)
MITSUBISHI CHEMICAL CORPORATION
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.