Patents by Inventor Michael A. Schreuder

Michael A. Schreuder 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).

  • FRANGIBLE SECURITY DEVICE
    Publication number: 20220335169
    Abstract: The present disclosure pertains to a tamper indicating security device, which indicates unauthorized duplication of and/or access to a variety of secure documents, technologies, products, and/or protected volumes.
    Type: Application
    Filed: May 4, 2022
    Publication date: October 20, 2022
    Applicant: Tetramer Technologies, LLC
    Inventors: Jeffrey R. DiMaio, Zachary Hunt, Yanina Breakiron, Baris Kokuoz, Bogdan Zdyrko, Michael A. Schreuder, Stephen D. Hudson
  • Frangible security device
    Patent number: 11347901
    Abstract: The present disclosure pertains to a tamper indicating security device, which indicates unauthorized duplication of and/or access to a variety of secure documents, technologies, products, and/or protected volumes.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: May 31, 2022
    Assignee: Tetramer Technologies, LLC
    Inventors: Jeffrey R. DiMaio, Zachary Hunt, Yanina Breakiron, Baris Kokuoz, Bogdan Zdyrko, Michael A. Schreuder, Stephen D. Hudson
  • FRANGIBLE SECURITY DEVICE
    Publication number: 20190005275
    Abstract: The present disclosure pertains to a tamper indicating security device, which indicates unauthorized duplication of and/or access to a variety of secure documents, technologies, products, and/or protected volumes.
    Type: Application
    Filed: June 28, 2018
    Publication date: January 3, 2019
    Applicant: Tetramer Technologies, LLC
    Inventors: Jeffrey R. DiMaio, Zachary Hunt, Yanina Breakiron, Baris Kokuoz, Bogdan Zdyrko, Michael A. Schreuder, Stephen D. Hudson
  • Surface structures for enhancement of quantum yield in broad spectrum emission nanocrystals
    Patent number: 8784698
    Abstract: Disclosed are inorganic nanoparticles comprising a body comprising cadmium and/or zinc crystallized with selenium, sulfur, and/or tellurium; a multiplicity of phosphonic acid ligands comprising at least about 20% of the total surface ligand coverage; wherein the nanocrystal is capable of absorbing energy from a first electromagnetic region and capable of emitting light in a second electromagnetic region, wherein the maximum absorbance wavelength of the first electromagnetic region is different from the maximum emission wavelength of the second electromagnetic region, thereby providing a Stokes shift of at least about 20 nm, wherein the second electromagnetic region comprises an at least about 100 nm wide band of wavelengths, and wherein the nanoparticle exhibits has a quantum yield of at least about 10%. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: July 22, 2014
    Assignee: Vanderbilt University
    Inventors: Michael A. Schreuder, James R. McBride, Sandra J. Rosenthal
  • SURFACE STRUCTURES FOR ENHANCEMENT OF QUANTUM YIELD IN BROAD SPECTRUM EMISSION NANOCRYSTALS
    Publication number: 20110223425
    Abstract: Disclosed are inorganic nanoparticles comprising a body comprising cadmium and/or zinc crystallized with selenium, sulfur, and/or tellurium; a multiplicity of phosphonic acid ligands comprising at least about 20% of the total surface ligand coverage; wherein the nanocrystal is capable of absorbing energy from a first electromagnetic region and capable of emitting light in a second electromagnetic region, wherein the maximum absorbance wavelength of the first electromagnetic region is different from the maximum emission wavelength of the second electromagnetic region, thereby providing a Stokes shift of at least about 20 nm, wherein the second electromagnetic region comprises an at least about 100 nm wide band of wavelengths, and wherein the nanoparticle exhibits has a quantum yield of at least about 10%. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Application
    Filed: May 24, 2011
    Publication date: September 15, 2011
    Inventors: Michael A. Schreuder, James R. McBride, Sandra J. Rosenthal
  • SURFACE STRUCTURES FOR ENHANCEMENT OF QUANTUM YIELD IN BROAD SPECTRUM EMISSION NANOCRYSTALS
    Publication number: 20110049442
    Abstract: Disclosed are inorganic nanoparticles comprising a body comprising cadmium and/or zinc crystallized with selenium, sulfur, and/or tellurium; a multiplicity of phosphonic acid ligands comprising at least about 20% of the total surface ligand coverage; wherein the nanocrystal is capable of absorbing energy from a first electromagnetic region and capable of emitting light in a second electromagnetic region, wherein the maximum absorbance wavelength of the first electromagnetic region is different from the maximum emission wavelength of the second electromagnetic region, thereby providing a Stokes shift of at least about 20 nm, wherein the second electromagnetic region comprises an at least about 100 nm wide band of wavelengths, and wherein the nanoparticle exhibits has a quantum yield of at least about 10%. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Application
    Filed: March 30, 2010
    Publication date: March 3, 2011
    Inventors: Michael A. Schreuder, James R. McBride, Sandra J. Rosenthal