Patents by Inventor Sentihilkumar Umapathy

Sentihilkumar Umapathy 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).

  • Hydrophilic silicone monomers, process for their preparation and thin films containing the same
    Patent number: 8686099
    Abstract: There is provided a mono-(meth)acrylate functionalized hydrophilic silicone monomers containing a polyether with branched linking group, useful in making water absorbing silicone-hydrogel films for contact lens applications. This invention also provides homo-polymers and copolymers made from the mono-(meth)acrylate functionalized hydrophilic silicone monomers described herein. Also provided is a process for producing the monomers and polymers described herein and contact lenses produced from the same.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: April 1, 2014
    Assignee: Momentive Performance Materials Inc.
    Inventors: Kendall Louis Guyer, Kenrick Martin Lewis, Sentihilkumar Umapathy, Anubhav Saxena, Yi-Feng Wang