Patents by Inventor George Greene, IV

George Greene, IV 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).

  • Multi-layer coated porous materials and methods of making the same
    Patent number: 7507469
    Abstract: Multi-layer coated materials and methods of making them are disclosed. In a specific embodiment, a porous polymeric substrate is pre-activated and immersed in a polyelectrolyte solution to form a first layer having an electric charge and at least one functional group. The coated material is next immersed in a second solution of a material having an electric charge opposite of that of the first layer to provide a bi-layer coating. This process can be repeated to form multi-layer coatings on porous substrates.
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: March 24, 2009
    Assignee: Porex Corporation
    Inventors: Guoqiang Mao, George Greene, IV, Li Yao
  • Multi-layer coated porous materials and methods of making the same
    Patent number: 7094464
    Abstract: Multi-layer coated materials and methods of making them are disclosed. In a specific embodiment, a porous polymeric substrate is pre-activated and immersed in a polyelectrolyte solution to form a first layer having an electric charge and at least one functional group. The coated material is next immersed in a second solution of a material having an electric charge opposite of that of the first layer to provide a bi-layer coating. This process can be repeated to form multi-layer coatings on porous substrates.
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: August 22, 2006
    Assignee: Porex Corporation
    Inventors: Guoqiang Mao, George Greene, IV, Li Yao