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PLASTIC CONTACT LENS COMPANY

Overview
  • Total Patents
    37
About

PLASTIC CONTACT LENS COMPANY has a total of 37 patent applications. Its first patent ever was published in 1958. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets optics, machine tools and machines are OPTIMED NV, SHURON OPTICAL CO INC and LUNETIERS COTTET POICHET TAGNO.

Patent filings in countries

World map showing PLASTIC CONTACT LENS COMPANYs patent filings in countries
# Country Total Patents
#1 United States 13
#2 Canada 7
#3 United Kingdom 7
#4 France 5
#5 Germany 2
#6 Spain 2
#7 Switzerland 1

Patent filings per year

Chart showing PLASTIC CONTACT LENS COMPANYs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Kratt Henry J 10
#2 Wesley Newton K 3
#3 Black Chester J 2
#4 Hamm Homer A 2
#5 Cepero Gilberto R 2
#6 Bronstein Leonard 1
#7 Long William E 1
#8 Davies Aliport 1
#9 Alexander Hamm Homer 1
#10 Alexander Homer 1

Latest patents

Publication Filing date Title
ES381509A2 Contact lenses
DE1772356A1 Contact lenses with coated edge zone
GB1178211A Bifocal Contact Lens
GB1117326A Plastic contact lenses and methods for their production
US3389012A Teflon coating on edges of contact lens
US3279878A Bi-focal corneal contact lens
US3297396A Contact lens with blind spot aperture
US3162985A Apparatus for producing contact lenses
US3339997A Bifocal ophthalmic lens having different color distance and near vision zones
US3285512A Graphical corneal contact lens computer
GB930876A Contact lens blank
US3079737A Toric lens tool
US3079736A Toric lens tool
US3153960A Contact lens cutting apparatus
US3087284A Lens edging tool
US3100955A Apparatus for producing contact lenses
GB905289A Improvements in corneal contact lenses
US2990664A Method for finishing contact lenses
US3031927A Bifocal corneal contact lens
CA721045A Bifocal corneal contact lens