Inventor
KUMI AUGUSTINE TWUM
US17 patents
⚠️ This page may combine multiple inventors who share the name “KUMI AUGUSTINE TWUM”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ALCON INC
16 patentsUS11365288B2Jun 21, 2022
Silicone hydrogel contact lenses
ALCON INC4 citations83
US10875967B2Dec 29, 2020
Silicone hydrogel contact lenses
ALCON INC8 citations83
US10866344B2Dec 15, 2020
Silicone hydrogel contact lenses
ALCON INC3 citations72
US10843422B2Nov 24, 2020
Method for producing silicone hydrogel contact lenses
ALCON INC6 citations72
US11439661B2Sep 13, 2022
Ophthalmic compositions
ALCON INC2 citations71
US12162987B2Dec 10, 2024
Silicone hydrogel contact lenses
ALCON INC0 citations62
US11802182B2Oct 31, 2023
Silicone hydrogel contact lenses
ALCON INC0 citations62
US11346982B2May 31, 2022
Silicone hydrogel contact lenses
ALCON INC0 citations62
US11886045B2Jan 30, 2024
Method for making photochromic contact lenses
ALCON INC1 citations61
US12339528B2Jun 24, 2025
Colored cosmetic photochromic contact lenses
ALCON INC0 citations51
US11945181B2Apr 2, 2024
Method for making photochromic contact lenses
ALCON INC0 citations51
US11833771B2Dec 5, 2023
Method for making photochromic contact lenses
ALCON INC0 citations51
US11427685B2Aug 30, 2022
Method for making silicone hydrogel contact lenses
ALCON INC0 citations51
US11254076B2Feb 22, 2022
Method for producing silicone hydrogel contact lenses
ALCON INC0 citations51
US12194699B2Jan 14, 2025
Embedded hydrogel contact lenses
ALCON INC0 citations50
US12360289B2Jul 15, 2025
Method for making embedded hydrogel contact lenses
ALCON INC0 citations49