Silicone hydrogel contact lenses

US11346982B2 · kind B2 · utility

Assignee

• ALCON INC. · CH

Inventors

• Daqing Wu · Suwanee, US
• Junhao Ge · Johns Creek, US
• Steve Yun Zhang · Sugar Hill, US
• Richard Charles Breitkopf · Dunwoody, US
• Xinming Qian · Johns Creek, US
• Zach Munoz · Smyrna, US
• Matthew D. Nelson · Salt Lake City, US
• Augustine Twum Kumi · Grayson, US
• Weihong Lang · Suwanee, US
• Ying Zheng · Suwanee, US
• Feng Jing · Atlanta, US
• Frank Chang · Cumming, US

Key dates

• Filing date: Sep 30, 2020
• Grant date: May 31, 2022
• Expiry date: Sep 30, 2040

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F230/08
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention generally relates to inherently wettable silicone hydrogel contact lenses having relatively high oxygen permeability, relatively high equilibrium water content and relatively low elastic modulus. The present invention is also related to a method for making such inherently wettable silicone hydrogel contact lenses.