Inventor

WITTMANN JOSEPH W

US4 patents

⚠️ This page may combine multiple inventors who share the name “WITTMANN JOSEPH W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

UCO OPTICS INC

2 patents

US4454295AJun 12, 1984

Cured cellulose ester, method of curing same, and use thereof

UCO OPTICS INC271 citations96

US4395496AJul 26, 1983

Cured cellulose ester, method of curing same, and use thereof

UCO OPTICS INC53 citations94

COOPERVISION INC

2 patents

US4508884AApr 2, 1985

Oxygen permeable hard contact lens

COOPERVISION INC58 citations95

US4891046AJan 2, 1990

Tinted contact lens and method for preparation with dichlorotriazine reactive dye

COOPERVISION INC47 citations91