Patents by Inventor Mark T. Swihart

Mark T. Swihart 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).

  • Production of photoluminescent silicon nanoparticles having surfaces that are essentially free of residual oxygen
    Patent number: 8029698
    Abstract: The present invention relates to a method for preparing photoluminescent silicon nanoparticles having uniformly hydrogen-terminated surfaces that are essentially free of residual oxygen. The present invention also relates to a method of preparing a blue-emitting photoluminescent silicon nanoparticle. The present invention further relates to a composition that includes a photoluminescent silicon nanoparticle having a surface that is uniformly hydrogen-terminated and essentially free of residual oxygen. The present invention also relates to a composition including a photoluminescent silicon nanoparticle having a surface that is uniformly coated with an organic layer and essentially free of residual oxygen. The present invention additionally relates to a composition including a photoluminescent silicon nanoparticle stably dispersed in an organic solvent and having a surface that is uniformly coated with an organic layer and essentially free of residual oxygen.
    Type: Grant
    Filed: April 19, 2006
    Date of Patent: October 4, 2011
    Assignee: The Research Foundation of State University of New York
    Inventors: Eli Ruckenstein, Mark T. Swihart, Fengjun Hua
  • Process for producing luminescent silicon nanoparticles
    Patent number: 7371666
    Abstract: A process for producing brightly photoluminescent silicon nanoparticles with an emission spanning the visible spectrum is disclosed. In one aspect, the process involves reacting a silicon precursor in the presence of a sheath gas with heat from a radiation beam under conditions effective to produce silicon nanoparticles and acid etching the silicon nanoparticles under conditions effective to produce photoluminescent silicon nanoparticles. Methods for stabilizing photoluminescence of photoluminescent silicon nanoparticles are also disclosed.
    Type: Grant
    Filed: March 9, 2004
    Date of Patent: May 13, 2008
    Assignee: The Research Foundation of State University of New York
    Inventors: Mark T. Swihart, Xuegeng Li, Yuanqing He
  • Process for producing luminescent silicon nanoparticles
    Publication number: 20040229447
    Abstract: A process for producing brightly photoluminescent silicon nanoparticles with an emission spanning the visible spectrum is disclosed. In one aspect, the process involves reacting a silicon precursor in the presence of a sheath gas with heat from a radiation beam under conditions effective to produce silicon nanoparticles and acid etching the silicon nanoparticles under conditions effective to produce photoluminescent silicon nanoparticles. Methods for stabilizing photoluminescence of photoluminescent silicon nanoparticles are also disclosed.
    Type: Application
    Filed: March 9, 2004
    Publication date: November 18, 2004
    Inventors: Mark T. Swihart, Xuegeng Li, Yuanqing He
  • Fluidized bed reactor and process
    Publication number: 20040049090
    Abstract: The present invention is directed to a continuous process for producing a desired hydrocarbon product using a heterogeneous slurry catalyst, to the product of said process, and to the reactor utilized in such process.
    Type: Application
    Filed: August 11, 2003
    Publication date: March 11, 2004
    Inventors: Christopher Lynn Becker, James Richardson Lattner, Mark T. Swihart
  • Fluidized bed reactor and process
    Patent number: 6627068
    Abstract: The present invention is directed to a continuous process for producing a desired hydrocarbon product using a heterogeneous slurry catalyst, to the product of said process, and to the reactor utilized in such process.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: September 30, 2003
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Christopher Lynn Becker, James Richardson Lattner, Mark T. Swihart
  • Fluidized bed reactor and process
    Publication number: 20020020656
    Abstract: The present invention is directed to a continuous process for producing a desired hydrocarbon product using a heterogeneous slurry catalyst, to the product of said process, and to the reactor utilized in such process.
    Type: Application
    Filed: May 9, 2001
    Publication date: February 21, 2002
    Inventors: James Richardson Lattner, Mark T. Swihart
  • Fluidized bed reactor and process for producing 5-ethylidene-2-norbornene
    Patent number: 6294707
    Abstract: The present invention is directed to a continuous process for producing a desired hydrocarbon product using a heterogeneous slurry catalyst, to the product of said process, and to the reactor utilized in such process.
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: September 25, 2001
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Christopher Lynn Becker, James Richardson Lattner, Mark T. Swihart