Patents by Inventor Gomaa Abdel-Sadek

Gomaa Abdel-Sadek 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).

  • Custom Monomers and Polymers for Spectacle Lenses
    Publication number: 20130296452
    Abstract: Monomers and polymers used in making spectacle lenses are disclosed. A thermal curing process is disclosed that includes a latent thermal cationic acid generator and optionally a cationic photoinitiator.
    Type: Application
    Filed: July 10, 2013
    Publication date: November 7, 2013
    Inventors: Jagdish JETHMALANI, Gomaa ABDEL-SADEK, Jeffrey CHOMYN, Erdem CETIN, Lawrence H. SVERDRUP, Shawn MCCARTY, Junhao GE
  • MONOMERS AND POLYMERS FOR OPTICAL ELEMENTS
    Publication number: 20110255156
    Abstract: An optical element includes a first lens; a cover; and a cured matrix polymer sandwiched between the first lens and the cover; the matrix polymer, prior to curing, having a monomer mixture dispersed therein; the matrix polymer being selected from the group consisting of polyester, polystyrene, polyacrylate, thiol-cured epoxy polymer, thiol-cured isocyanate polymer, and mixtures thereof; and the monomer mixture comprising a thiol monomer and at least one second monomer selected from the group consisting of ene monomer and yne monomer.
    Type: Application
    Filed: September 15, 2010
    Publication date: October 20, 2011
    Applicant: Ophthonix, Inc.
    Inventors: Jagdish JETHMALANI, Andreas W. Dreher, Gomaa Abdel-Sadek, Jeffrey Chomyn, Jieming Li, Maher Qaddoura
  • Optical element for stabilizing refractive index profiles using polymer mixtures
    Patent number: 8034262
    Abstract: An optical element comprising: a first monomer polymerized while in the presence of a second monomer to form a first polymer intermixed with the second monomer, the first polymer having a spatially varying degree of cure that provides a predetermined refractive index profile; and the second monomer polymerized in the presence of the first polymer to form a second polymer intermixed with the first polymer, the second polymer stabilizing the refractive index profile.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: October 11, 2011
    Assignee: Ophthonix, Inc.
    Inventors: Shui T. Lai, Donald G. Bruns, Lawrence H. Sverdrup, Gomaa Abdel-Sadek
  • Monomers and polymers for optical elements
    Patent number: 7821719
    Abstract: An optical element includes a first lens; a cover; and a cured matrix polymer sandwiched between the first lens and the cover; the matrix polymer, prior to curing, having a monomer mixture dispersed therein; the matrix polymer being selected from the group consisting of polyester, polystyrene, polyacrylate, thiol-cured epoxy polymer, thiol-cured isocyanate polymer, and mixtures thereof; and the monomer mixture comprising a thiol monomer and at least one second monomer selected from the group consisting of ene monomer and yne monomer.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: October 26, 2010
    Assignee: Ophthonix, Inc.
    Inventors: Jagdish Jethmalani, Andreas W. Dreher, Gomaa Abdel-Sadek, Jeffrey Chomyn, Jieming Li, Maher Qaddoura
  • Monomers and polymers for optical elements
    Patent number: 7371804
    Abstract: Compositions comprising a matrix polymer and a mixture of monomers are used for making polymer mixtures containing the matrix polymer and a second polymer formed from the monomer mixture. Preferably, the matrix polymer comprises a polyester, polystyrene, polyacrylate, thiol-cured epoxy polymer, thiol-cured isocyanate polymer, or mixtures thereof. Preferably, the monomer mixture comprises a thiol monomer and at least one second monomer selected from the group consisting of ene monomer and yne monomer. The compositions may be used to fabricate optical elements such as lenses.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: May 13, 2008
    Assignee: Ophthonix, Inc.
    Inventors: Jagdish Jethmalani, Andreas W. Dreher, Gomaa Abdel-Sadek, Jeffrey Chomyn, Jieming Li, Maher Qaddoura
  • Custom monomers and polymers for spectacle lenses
    Publication number: 20080071002
    Abstract: Monomers and polymers used in making spectacle lenses are disclosed. A thermal curing process is disclosed that includes a latent thermal cationic acid generator and optionally a cationic photoinitiator.
    Type: Application
    Filed: March 20, 2007
    Publication date: March 20, 2008
    Inventors: Jagdish Jethmalani, Gomaa Abdel-Sadek, Jeffrey Chomyn, Erdem Cetin, Lawrence Sverdrup, Shawn McCarty, Junhao Ge
  • MONOMERS AND POLYMERS FOR OPTICAL ELEMENTS
    Publication number: 20080068723
    Abstract: An optical element includes a first lens; a cover; and a cured matrix polymer sandwiched between the first lens and the cover; the matrix polymer, prior to curing, having a monomer mixture dispersed therein; the matrix polymer being selected from the group consisting of polyester, polystyrene, polyacrylate, thiol-cured epoxy polymer, thiol-cured isocyanate polymer, and mixtures thereof; and the monomer mixture comprising a thiol monomer and at least one second monomer selected from the group consisting of ene monomer and yne monomer.
    Type: Application
    Filed: November 6, 2007
    Publication date: March 20, 2008
    Applicant: Ophthonix, Inc.
    Inventors: Jagdish JETHMALANI, Andreas Dreher, Gomaa Abdel-Sadek, Jeffrey Chomyn, Jieming Li, Maher Qaddoura
  • Monomers and polymers for optical elements
    Publication number: 20060052547
    Abstract: Compositions comprising a matrix polymer and a mixture of monomers are used for making polymer mixtures containing the matrix polymer and a second polymer formed from the monomer mixture. Preferably, the matrix polymer comprises a polyester, polystyrene, polyacrylate, thiol-cured epoxy polymer, thiol-cured isocyanate polymer, or mixtures thereof. Preferably, the monomer mixture comprises a thiol monomer and at least one second monomer selected from the group consisting of ene monomer and yne monomer. The compositions may be used to fabricate optical elements such as lenses.
    Type: Application
    Filed: September 7, 2004
    Publication date: March 9, 2006
    Inventors: Jagdish Jethmalani, Andreas Dreher, Gomaa Abdel-Sadek, Jeffrey Chomyn, Jieming Li, Maher Qaddoura
  • Method for stabilizing refractive index profiles using polymer mixtures
    Publication number: 20060050228
    Abstract: A method for making an optical element comprises polymerizing a first monomer to form a first polymer, the first polymer having a spatially varying degree of cure that provides a predetermined refractive index profile; and polymerizing a second monomer in the presence of the first polymer to form a second polymer intermixed with the first polymer, the second polymer stabilizing the first polymer and the refractive index profile.
    Type: Application
    Filed: September 7, 2004
    Publication date: March 9, 2006
    Inventors: Shui Lai, Donald Bruns, Lawrence Sverdrup, Gomaa Abdel-Sadek