4. Optics: eye examining, vision testing and correcting
  5. Spectacles and eyeglasses
  6. Ophthalmic lenses or blanks

Gentex Optics, Inc.

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Aspheric/atoric wide field sunglasses and safety eyewear

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – With antiglare or shading
Patent

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Infusion of dye using a plasticizer

Bleaching and dyeing; fluid treatment and chemical modification – Pattern effect dyeing – process – compositions – or products – Two or more sequential dye application steps
Reexamination Certificate

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Insert for molding convex surfaces of progressive lenses and ret

Plastic article or earthenware shaping or treating: apparatus – With apparatus assembly or dismantling means or with idle part – Plural wear or shaping surfaces mounted for alternative use
Patent

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Method for injection molding with direct insert thermal control

Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Shaping against forming surface
Reexamination Certificate

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Method of depositing thin films

Chemistry: electrical and wave energy – Processes and products – Coating – forming or etching by sputtering
Reexamination Certificate

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Profile ID: LFUS-PAI-P-920433

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