Patents by Inventor Frank P. Mallak

Frank P. Mallak 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).

  • Photochromic contact lenses and methods of manufacturing
    Patent number: 7560056
    Abstract: Described are contact lenses having photochromic materials within the central or pupillary area of the lens and methods for manufacturing such lenses. In one method, a photochromic amount of at least one photochromic material is added to the pupillary region of a casting mold containing a polymerizable monomer that can be at least partially cured before and/or after the addition. Another method involves providing an amount of polymerizable photochromic monomer for the pupillary region and an amount of polymerizable non-photochromic monomer for the remainder of the contact lens in a casting mold. The photochromic and non-photochromic monomers can differ by their degree of polymerization, viscosity and/or density.
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: July 14, 2009
    Assignee: Transition Optical, Inc.
    Inventors: Barry Van Gemert, Anil Kumar, Frank P. Mallak, Robert W. Walters
  • PHOTOCHROMIC CONTACT LENSES AND METHODS OF MANUFACTURING
    Publication number: 20080125512
    Abstract: Described are contact lenses having photochromic materials within the central or pupillary area of the lens and methods for manufacturing such lenses. In one method, a photochromic amount of at least one photochromic material is added to the pupillary region of a casting mold containing a polymerizable monomer that can be at least partially cured before and/or after the addition. Another method involves providing an amount of polymerizable photochromic monomer for the pupillary region and an amount of polymerizable non-photochromic monomer for the remainder of the contact lens in a casting mold. The photochromic and non-photochromic monomers can differ by their degree of polymerization, viscosity and/or density.
    Type: Application
    Filed: February 7, 2008
    Publication date: May 29, 2008
    Applicant: TRANSITIONS OPTICAL, INC.
    Inventors: Barry Van Gemert, Anil Kumar, Frank P. Mallak, Robert W. Walters
  • Photochromic contact lenses and methods of manufacturing
    Patent number: 7368072
    Abstract: Described are contact lenses having photochromic materials within the central or pupillary area of the lens and methods for manufacturing such lenses. In one method, a photochromic amount of at least one photochromic material is added to the pupillary region of a casting mold containing a polymerizable monomer that can be at least partially cured before and/or after the addition. Another method involves providing an amount of polymerizable photochromic monomer for the pupillary region and an amount of polymerizable non-photochromic monomer for the remainder of the contact lens in a casting mold. The photochromic and non-photochromic monomers can differ by their degree of polymerization, viscosity and/or density.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: May 6, 2008
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Barry Van Gemert, Anil Kumar, Frank P. Mallak, Robert W. Walters
  • Photochromic contact lenses and methods of manufacturing
    Publication number: 20030142267
    Abstract: Described are contact lenses having photochromic materials within the central or pupillary area of the lens and methods for manufacturing such lenses. In one method, a photochromic amount of at least one photochromic material is added to the pupillary region of a casting mold containing a polymerizable monomer that can be at least partially cured before and/or after the addition. Another method involves providing an amount of polymerizable photochromic monomer for the pupillary region and an amount of polymerizable non-photochromic monomer for the remainder of the contact lens in a casting mold. The photochromic and non-photochromic monomers can differ by their degree of polymerization, viscosity and/or density.
    Type: Application
    Filed: December 10, 2002
    Publication date: July 31, 2003
    Inventors: Barry Van Gemert, Anil Kumar, Frank P. Mallak, Robert W. Walters