Granted Patent
Utility
US 6,375,642 · App. 09/503,884
Method of and device for improving a drainage of aqueous humor within the eye
Inventors:
Hans R. Grieshaber, M. D. Robert Stegmann
Patented Case
View Patent ↗
Granted: Apr 23, 2002
Filed: Feb 15, 2000
Inventors
Hans R. Grieshaber
M. D. Robert Stegmann
Assignee (at issue)
Grieshaber & Co. AG Schaffhausen
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.