Patents by Inventor Janet Moradian-Oldak

Janet Moradian-Oldak 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).

  • Publication number: 20190060207
    Abstract: A composition for re-constructing enamel-coated substrates such as a tooth which includes an amelogenin, chitosan, and water. The composition may also include compounds providing calcium and phosphate ions. Methods using the composition are also provided.
    Type: Application
    Filed: November 8, 2018
    Publication date: February 28, 2019
    Inventors: Janet Moradian-Oldak, Qichao Ruan
  • Publication number: 20180236130
    Abstract: A method to regrow a protective layer over exposed/demineralized dentin that includes a step of identifying a subject having exposed/demineralized dentin. The demineralized dentin is contacted with a remineralization composition that includes an amelogenin and derived peptides, a chitosan, water, and a sufficient amount of a pH adjusting component such that the composition has a pH greater than about 6.0 such that dentinal tubules are occluded with apatite crystals and enamel is regrown on the dentinal tubules.
    Type: Application
    Filed: April 13, 2018
    Publication date: August 23, 2018
    Inventors: JANET MORADIAN-OLDAK, QICHAO RUAN, KAUSHIK MUKHERJEE
  • Patent number: 9962465
    Abstract: A method to regrow a protective layer over exposed/demineralized dentin that includes a step of identifying a subject having exposed/demineralized dentin. The demineralized dentin is contacted with a remineralization composition that includes an amelogenin and derived peptides, a chitosan, water, and a sufficient amount of a pH adjusting component such that the composition has a pH greater than about 6.0 such that dentinal tubules are occluded with apatite crystals and enamel is regrown on the dentinal tubules.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: May 8, 2018
    Assignee: University of Southern California
    Inventors: Janet Moradian-Oldak, Qichao Ruan, Kaushik Mukherjee
  • Publication number: 20170273793
    Abstract: A multilayer structure that functions as a bone replacement material includes a plurality of organic matrix layers such that each organic matrix layer includes chitosan and a dicarboxylic acid. The multilayer structure also includes a plurality of calcium phosphate-containing layers wherein each calcium phosphate-containing layer is interposed between a pair of organic matrix layers. Characteristically, the chitosan is cross-linked by the dicarboxylic acid.
    Type: Application
    Filed: March 22, 2017
    Publication date: September 28, 2017
    Inventors: JANET MORADIAN-OLDAK, QICHAO RUAN
  • Publication number: 20170007737
    Abstract: A method to regrow a protective layer over exposed/demineralized dentin that includes a step of identifying a subject having exposed/demineralized dentin. The demineralized dentin is contacted with a remineralization composition that includes an amelogenin and derived peptides, a chitosan, water, and a sufficient amount of a pH adjusting component such that the composition has a pH greater than about 6.0 such that dentinal tubules are occluded with apatite crystals and enamel is regrown on the dentinal tubules.
    Type: Application
    Filed: July 6, 2016
    Publication date: January 12, 2017
    Inventors: JANET MORADIAN-OLDAK, QICHAO RUAN, KAUSHIK MUKHERJEE
  • Publication number: 20140186273
    Abstract: A composition for re-constructing enamel-coated substrates such as a tooth which includes an amelogenin, chitosan, and water. The composition may also include compounds providing calcium and phosphate ions. Methods using the composition are also provided.
    Type: Application
    Filed: December 27, 2013
    Publication date: July 3, 2014
    Applicant: University of Southern California
    Inventors: Janet MORADIAN-OLDAK, Qichao RUAN
  • Patent number: 8545625
    Abstract: The invention provides novel dental enamel inspired materials for biomedical and dental applications. The materials are apatite-like calcium phosphate complexes and may comprise apatite, octacalcium phosphate crystals, or mixtures thereof. In one embodiment, the materials (calcium phosphate coatings) are mixtures of crystals of apatite and its precursor, octacalcium phosphate, nucleated on a titanium surface. They are prepared using a chemical process leading to the formation of biological apatite which is similar to that found in natural bone and teeth. In one embodiment, the materials are prepared by placing a titanium substrate in a supersaturated calcifying solution containing native or purified recombinant amelogenins. The presence of the amelogenins modulates apatite crystal growth to mimic in vivo apatite crystal formation.
    Type: Grant
    Filed: September 12, 2006
    Date of Patent: October 1, 2013
    Assignee: University of Southern California
    Inventors: Hai Bo Wen, Janet Moradian-Oldak
  • Publication number: 20070010893
    Abstract: The invention provides novel dental enamel inspired materials for biomedical and dental applications. The materials are apatite-like calcium phosphate complexes and may comprise apatite, octacalcium phosphate crystals, or mixtures thereof. In one embodiment, the materials (calcium phosphate coatings) are mixtures of crystals of apatite and its precursor, octacalcium phosphate, nucleated on a titanium surface. They are prepared using a chemical process leading to the formation of biological apatite which is similar to that found in natural bone and teeth. In one embodiment, the materials are prepared by placing a titanium substrate in a supersaturated calcifyng solution containing native or purified recombinant amelogenins. The presence of the amelogenins modulates apatite crystal growth to mimic in vivo apatite crystal formation.
    Type: Application
    Filed: September 12, 2006
    Publication date: January 11, 2007
    Applicant: The University of Southern California, a California Corporation
    Inventors: Hai Wen, Janet Moradian-Oldak
  • Patent number: 7132015
    Abstract: The invention provides novel dental enamel inspired materials for biomedical and dental applications. The materials are apatite-like calcium phosphate complexes and may comprise apatite, octacalcium phosphate crystals, or mixtures thereof. In one embodiment, the materials (calcium phosphate coatings) are mixtures of crystals of apatite and its precursor, octacalcium phosphate, nucleated on a titanium surface. They are prepared using a chemical process leading to the formation of biological apatite which is similar to that found in natural bone and teeth. In one embodiment, the materials are prepared by placing a titanium substrate in a supersaturated calcifying solution containing native or purified recombinant amelogenins. The presence of the amelogenins modulates apatite crystal growth to mimic in vivo apatite crystal formation.
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: November 7, 2006
    Assignee: University of Southern California
    Inventors: Hai Bo Wen, Janet Moradian-Oldak
  • Publication number: 20030170378
    Abstract: The invention provides novel dental enamel inspired materials for biomedical and dental applications. The materials are apatite-like calcium phosphate complexes and may comprise apatite, octacalcium phosphate crystals, or mixtures thereof. In one embodiment, the materials (calcium phosphate coatings) are mixtures of crystals of apatite and its precursor, octacalcium phosphate, nucleated on a titanium surface. They are prepared using a chemical process leading to the formation of biological apatite which is similar to that found in natural bone and teeth. In one embodiment, the materials are prepared by placing a titanium substrate in a supersaturated calcifying solution containing native or purified recombinant amelogenins. The presence of the amelogenins modulates apatite crystal growth to mimic in vivo apatite crystal formation.
    Type: Application
    Filed: February 20, 2003
    Publication date: September 11, 2003
    Applicant: University of Southern California
    Inventors: Hai Bo Wen, Janet Moradian-Oldak