Patents by Inventor Mohammed I. Ali

Mohammed I. Ali 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).

  • Silicone-containing contact lens polymers, oxygen permeable contact lenses and methods for making these lenses and treating patients with visual impairment
    Patent number: 5331067
    Abstract: The present invention relates to novel copolymers and contact lenses made from these copolymers comprising preformed silicon-containing acrylic star polymers and macromonomers, preparation of these contact lenses and a therapeutic method for treating patients with visual impairment. Described is a copolymer comprising at least about 10% by weight of a preformed silicone-containing acrylic copolymer and no more than about 90% by weight of a matrix formed from the random polymerization of a mixture of monomers. The mixture of monomers comprises at least one monomer selected from the group consisting of silicone acrylates, esters of alpha, beta-unsaturated acids and wetting monomers. The preformed silicone-containing acrylic copolymer is preferably copolymerized throughout the matrix.
    Type: Grant
    Filed: January 12, 1993
    Date of Patent: July 19, 1994
    Assignee: Permeable Technologies, Inc.
    Inventors: Leonard Seidner, Harry J. Spinelli, Mohammed I. Ali, Lester Weintraub
  • Silicone-containing polymers, oxygen permeable hydrophilic contact lenses and methods for making these lenses and treating patients with visual impairment
    Patent number: 5314960
    Abstract: The present invention relates to novel copolymers and contact lenses made from these copolymers comprising preformed silicone-containing acrylic star polymers, graft copolymers and macromonomers, preparation of these contact lenses and a therapeutic method for treating patients with visual impairment.Described is a composition comprising at least about 10% by weight of a preformed silicone-containing acrylic copolymer and no more than about 90% by weight of a matrix formed from the random polymerization of a mixture of monomers. The mixture of monomers comprises at least one hydrophilic monomer and optionally, monomers selected from the group consisting of silicone acrylates, esters of alpha, beta-unsaturated acids and crosslinking monomers. The preformed silicone-containing acrylic copolymer is preferably copolymerized throughout the matrix. The final compositions are hydrated to a final water content of at least about 10% by weight.
    Type: Grant
    Filed: October 9, 1991
    Date of Patent: May 24, 1994
    Assignee: Permeable Technologies, Inc.
    Inventors: Harry J. Spinelli, Waifong L. Anton, Leonard Seidner, Henry D. Coleman, Mohammed I. Ali, Lester Weintraub, Paul White
  • Silicone-containing polymers, compositions and improved oxygen permeable hydrophilic contact lenses
    Patent number: 5314961
    Abstract: The present invention relates to novel copolymers and contact lenses made from these copolymers comprising preformed silicone-containing acrylic star polymers, graft copolymers and macromonomers, preparation of these contact lenses and a therapeutic method for treating patients with visual impairment.Described is a composition comprising at least about 10% by weight of a preformed silicone-containing acrylic copolymer and no more than about 90% by weight of a matrix formed from the random polymerization of a mixture of monomers. The mixture of monomers comprises at least one hydrophilic monomer and at least about 5% by weight of a polysiloxanylalkylester of an alpha, beta unsaturated acid and optionally, monomers selected from the group consisting of esters of alpha, beta-unsaturated acids and crosslinking monomers. The preformed silicone-containing acrylic copolymer is preferably copolymerized throughout the matrix. The final compositions are hydrated to a final water content of at least about 10% by weight.
    Type: Grant
    Filed: April 9, 1992
    Date of Patent: May 24, 1994
    Assignee: Permeable Technologies, Inc.
    Inventors: Waifong L. Anton, Henry D. Coleman, Mohammed I. Ali, Lester Weintraub
  • Silicone-containing contact lens polymers, oxygen permeable contact lenses and methods for making these lenses and treating patients with visual impairment
    Patent number: 5244981
    Abstract: The present invention relates to novel copolymers and contact lenses made from these copolymers comprising preformed silicone-containing acrylic star polymers and macromonomers, preparation of these contact lenses and a therapeutic method for treating patients with visual impairment.Described is a copolymer comprising at least about 10% by weight of a preformed silicone-containing acrylic copolymer and no more than about 90% by weight of a matrix formed from the random polymerization of a mixture of monomers. The mixture of monomers comprises at least one monomer selected from the group consisting of silicone acrylates, esters of alpha, beta-unsaturated acids and wetting monomers. The preformed silicone-containing acrylic copolymer is preferably copolymerized throughout the matrix.
    Type: Grant
    Filed: April 10, 1990
    Date of Patent: September 14, 1993
    Assignee: Permeable Technologies, Inc.
    Inventors: Leonard Seidner, Harry J. Spinelli, Mohammed I. Ali, Lester Weintraub