Patents by Inventor Jim I. Main

Jim I. Main 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).

  • Method of making a contact lens material and a lens therefrom
    Patent number: 4375534
    Abstract: A new and improved contact lens is provided and is made by a process which uses a distillation step with an addition of a carbon decolorizing agent to the solution being distilled. The carbon decolorizing agent prevents curdling and removes impurities in the distillation step. The result is a contact lens with a very high water content and with good oxygen permeability characteristics.
    Type: Grant
    Filed: August 14, 1980
    Date of Patent: March 1, 1983
    Inventor: Jim I. Main