Contact lenses bearing marks

US6203156A · kind A · utility

Assignee

• Johnson & Johnson Vision Care, Inc. · US

Inventors

• Jongliang Wu · Jacksonville, US
• Khaled Chehab · Jacksonville, US
• Carl Crowe · Jacksonville, US
• Victor Lust · Jacksonville, US
• Richard J. Nason · Roanoke, US
• Timothy R. Poling · Jacksonville, US
• Jon Walker · Lompoc, US

Key dates

• Filing date: Mar 31, 1998
• Grant date: Mar 20, 2001
• Expiry date: Mar 31, 2018

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41M5/267
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

This invention provides a contact lens comprising a front surface, a back surface, and an identifying mark, wherein said identifying mark comprises one or more holes depressed into at least one of said surfaces of said lens.