Patents by Inventor Gregory Todd Lewis

Gregory Todd Lewis 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).

  • Patent number: 9144824
    Abstract: A method of modifying a polymeric, inorganic, or organic-functionalized substrate surface is provided. In one embodiment, an atmospheric pressure (AP) plasma stream is directed at a substrate surface, leading to the formation of surface-bound active sites that function as polymerization initiators. When contacted with a monomer or monomer solution, the active sites facilitate formation of a dense array of graft polymers covalently bound to the substrate surface. In another embodiment, an inorganic substrate is cleaned, conditioned in a humidity chamber, treated with an AP plasma, and contacted with a monomer or monomer solution to facilitate formation and growth of graft polymers on the substrate surface.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: September 29, 2015
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Yoram Cohen, Gregory Todd Lewis
  • Publication number: 20100035074
    Abstract: A method of modifying a polymeric, inorganic, or organic-functionalized substrate surface is provided. In one embodiment, an atmospheric pressure (AP) plasma stream is directed at a substrate surface, leading to the formation of surface-bound active sites that function as polymerization initiators. When contacted with a monomer or monomer solution, the active sites facilitate formation of a dense array of graft polymers covalently bound to the substrate surface. In another embodiment, an inorganic substrate is cleaned, conditioned in a humidity chamber, treated with an AP plasma, and contacted with a monomer or monomer solution to facilitate formation and growth of graft polymers on the substrate surface.
    Type: Application
    Filed: November 13, 2007
    Publication date: February 11, 2010
    Inventors: Yoram Cohen, Gregory Todd Lewis