IP Library › Granted Patent US 5,657,108
Granted Patent Utility
US 5,657,108 · App. 08/592,164

Multifocal ophthalmic lens

Inventor: Valdemar Portney
Patented Case View Patent ↗
Granted: Aug 12, 1997 Filed: Jan 26, 1996
Inventor
Valdemar Portney

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Quick Facts
Patent No.
US 5,657,108
App. No.
08/592,164
Filed
1996-01-26
Granted
1997-08-12
Kind
A