Silicone hydrogel contact lenses for sustained release of beneficial polymers

US9498035B2 · kind B2 · utility

Assignee

• COOPERVISION INTERNATIONAL LIMITED · GB

Inventors

• Andrew Luk · Castro Valley, US
• Victoria Rogers · Pleasanton, US
• Junhao Ge · Johns Creek, US
• Hong Xue · Sha Tin, CN
• Yuwen Liu · Dublin, US
• Arthur Back · Danville, US
• Yun Zhang · Dublin, US
• Ying Ye · Pleasanton, US
• Peter Zhu · Cupertino, US

Key dates

• Filing date: Dec 18, 2013
• Grant date: Nov 22, 2016
• Expiry date: Feb 18, 2034

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B1/043
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

Silicone hydrogel contact lenses comprising an ionic component sustain release of beneficial cationic polymers.