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AMERICAN OPTICAL CORP

Overview
  • Total Patents
    5,051
About

AMERICAN OPTICAL CORP has a total of 5,051 patent applications. Its first patent ever was published in 1900. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets optics, machines and medical technology are F A HARDY & COMPANY, RODENSTOCK OPTIK G and ESSILOR INT (COMPAGNIE GENERALE D'OPTIQUE).

Patent filings per year

Chart showing AMERICAN OPTICAL CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Tillyer Edgar D 181
#2 Snitzer Elias 89
#3 Splaine Edward M 83
#4 Siegmund Walter P 72
#5 Hill Harry W 68
#6 Baker Nelson M 63
#7 Grolman Bernard 60
#8 Day George H 55
#9 Moulton Harold R 53
#10 Schumacher Elmer L 53

Latest patents

Publication Filing date Title
US5726734A Hard/soft superposition progressive lens design
IL105147D0 Production of photochromic plastic lenses
US5137341A Prescription lens carrier
ZA9109933B Spectacle lenses having an inside-out conicoidal front surface
IL100410D0 Spectacle lenses having an inside-out conicoidal front surface
NZ241027A Ophthalmic lens with convex front surface of aspherical inside-out conicoid form
AU9117591A Spectacle lenses having an inside-out conicoidal front surface
US5272332A Laser discrimination device
US5198911A Holographic optical notch reflectors
US5235357A Spectacle lenses having an inside-out conicoidal front surface and method for forming same
US5100232A Apparatus and method for detecting hidden marks on progressive aspheric ophthalmic lenses
US5116113A Laser eye protective devices
US5212585A Laser protective device
AU4571789A Progressive addition spectacle lens
US4921512A Filter element
US5000878A Photochromic articles with thermally stable photocolorability
US5123725A Progressive addition spectacle lens
US4899921A Aligner bonder
US4977627A Protective goggle
US4942696A Blocking shim and method for prescription-laboratory processing of aspheric progressive-addition lenses