Granted Patent
Utility
US 5,147,393 · App. 07/681,814
Bifocal intraocular lens with correction for spherical abberation
Inventors:
Stephen J. Van Noy, Anilbhai S. Patel, Thomas Carncross
Patented Case
View Patent ↗
Granted: Sep 15, 1992
Filed: Apr 5, 1991
Inventors
Stephen J. Van Noy
Anilbhai S. Patel
Thomas Carncross
Assignee (at issue)
Alcon Surgical, Inc.
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.