Patents/Inventors

Changhong Yin

Mansfield, TXUS2 patents

3 Patents

US118400352023
Pad Transfer Printing Method for Making Colored Contact Lenses
Alcon Inc.
0 cites
US116029102023
Pad Transfer Printing Method for Making Colored Contact Lenses
Alcon Inc.
0 cites
US115840972023
Method for Making Opaque Colored Silicone Hydrogel Contact Lenses
Alcon Inc.
0 cites