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VISTAKON INC

Overview
  • Total Patents
    109
About

VISTAKON INC has a total of 109 patent applications. Its first patent ever was published in 1982. It filed its patents most often in United States, Australia and Canada. Its main competitors in its focus markets machines, optics and medical technology are SEUFERT THORSTEN, REXAM COSMETIC CLOSURES and ADISA ENTWICKLUNGS AG.

Patent filings per year

Chart showing VISTAKON INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Kindt-Larsen Ture 37
#2 Heaton John C 28
#3 Rastrelli Edmund C 27
#4 Ashley Charles R 22
#5 Lahm William J 21
#6 Crossman Russell J 20
#7 Hennessey John P 13
#8 Hill Gregory A 13
#9 Hennessy John P 10
#10 Larsen Hans Ole 9

Latest patents

Publication Filing date Title
US5256751A Ophthalmic lens polymer incorporating acyclic monomer
US5292350A Method for preparing tinted contact lens
US5094609A Chamber for hydrating contact lenses
US4889664A Method of forming shaped hydrogel articles including contact lenses
US4986414A Container for a number of packaged contact lenses
US4958280A Apparatus and method for satisfying disposable contact lens prescriptions
US4782942A Container for a number of packaged contact lenses
US4691820A Package for hydrophilic contact lens
CA1276597C Package for hydrophilic contact lens
ZA8508912B Shaped hydrogel articles
US4573774A Soft toric contact lens
US4680336A Method of forming shaped hydrogel articles
US4618227A Soft contact lens
US4573775A Bifocal contact lens