Patents by Inventor Jeffrey E. Steven

Jeffrey E. Steven has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process of manufacturing contact lenses with measured exposure to oxygen
    Patent number: 6610220
    Abstract: This invention provides a method of manufacturing a contact lens comprising the step of: dosing a contact lens mold comprising optical mold surfaces with an oxygen-sensitive reaction mixture, wherein said optical surfaces of said contact lens mold have between from 0.13×10−9 to 2.6×10−9 moles/cm2 O2 available to interfere with the reaction of said reaction mixture. This invention further provides a method of manufacturing a contact lens comprising the steps of: dosing a contact lens mold comprising optical mold surfaces with a reaction mixture, and sealing said reaction mixture and said optical mold surfaces away from a gaseous environment, wherein said optical surfaces of said contact lens mold were exposed to said gaseous environment comprising greater than 0.5 percent oxygen just prior to said sealing step.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: August 26, 2003
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Jeffrey D. Caltrider, Joseph W. Ricard, Terry L. Spaulding, Jeffrey E. Steven, Olin W. Calvin, John B. Enns, Ture Kindt-Larsen