Silicone hydrogel contact lenses

US10875967B2 · kind B2 · utility

Assignee

• ALCON INC. · CH

Inventors

• Steve Yun Zhang · Sugar Hill, US
• Daqing Wu · Suwanee, US
• Junhao Ge · Johns Creek, 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: Jun 6, 2018
• Grant date: Dec 29, 2020
• Expiry date: Jan 3, 2039

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B2207/109
• 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.