Joseph W Wittmann

Title: Joseph W. Wittmann: Contact Lens Inventor

Introduction

Joseph W. Wittmann is an inventor associated with Rochester, New York. His patent work includes innovations in tinted and oxygen-permeable contact lenses. He is credited with 4 patents.

Latest Patents

Wittmann’s listed patents address contact lens materials and manufacturing methods.

- Tinted Contact Lens and Method for Preparation with Dichlorotriazine. This invention describes tinting hydrophilic contact lenses made from a copolymer of a hydroxyl group-containing monomer and N-vinylpyrrolidone. The lens is impregnated with an aqueous solution of a dichlorotriazine reactive dye, then treated with an aqueous alkaline solution to fix the dye.

- Oxygen Permeable Hard Contact Lens. This patent concerns hard contact lenses made by copolymerizing an ethylenically unsaturated silicone ester, a sterically hindered or bulky aliphatic ester of an ethylenically unsaturated carboxylic acid, and a hydrophilic monomer. It also describes a method for polymerizing these materials.

Career Highlights

Wittmann’s listed professional affiliations include Coopervision, Inc. and Uco Optics, Inc. His patent work reflects an emphasis on contact lens composition, performance, and preparation.

Collaborations

John M. Evans is identified as a coworker. The available information does not specify the nature or scope of their collaboration.

Conclusion

Joseph W. Wittmann’s patents document contributions to tinted and oxygen-permeable contact lens technologies, alongside professional affiliations in the optical industry.