Inventor
HOVEY RICHARD J
11 patents
⚠️ This page may combine multiple inventors who share the name “HOVEY RICHARD J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AMERICAN OPTICAL CORP
10 patentsUS4367170AJan 4, 1983
Stabilized photochromic materials
AMERICAN OPTICAL CORP289 citations98
US4166043AAug 28, 1979
Stabilized photochromic materials
AMERICAN OPTICAL CORP266 citations97
US4342668AAug 3, 1982
Photochromic compounds
AMERICAN OPTICAL CORP267 citations96
US4215010AJul 29, 1980
Photochromic compounds
AMERICAN OPTICAL CORP273 citations96
US4289497ASep 15, 1981
Gradient photochromic lens and method selectively reducing photochromic activity
AMERICAN OPTICAL CORP53 citations95
US4043637AAug 23, 1977
Photochromic light valve
AMERICAN OPTICAL CORP132 citations95
US4383956AMay 17, 1983
Method of a single element complete air filtering structure for a respirator filter cartridge
AMERICAN OPTICAL CORP29 citations91
US4046586ASep 6, 1977
Stabilized photochromic materials
AMERICAN OPTICAL CORP29 citations81
US4110244AAug 29, 1978
Photochromic plastic material
AMERICAN OPTICAL CORP12 citations73
US4049846ASep 20, 1977
Photochromic plastic materials
AMERICAN OPTICAL CORP12 citations73