Patents by Inventor Steve Duffy

Steve Duffy 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).

  • Flexural sheet explosive simulants
    Patent number: 11613504
    Abstract: An explosive sheet simulant that uses an ethylene vinyl acetate polymer combined with boron carbide or iron oxide for X-ray attenuating properties, and components of the mixture selected for predetermined flexural modulus combined with particle density, effective atomic number, X-ray transmission properties, or millimeter wave properties.
    Type: Grant
    Filed: January 25, 2022
    Date of Patent: March 28, 2023
    Assignee: The Government of the United States of America, as represented by the Secretary of Homeland Security
    Inventors: Michael Brogden, Steve Duffy
  • FLEXURAL SHEET EXPLOSIVE SIMULANTS
    Publication number: 20220144721
    Abstract: An explosive sheet simulant that uses an ethylene vinyl acetate polymer combined with boron carbide or iron oxide for X-ray attenuating properties, and components of the mixture selected for predetermined flexural modulus combined with particle density, effective atomic number, X-ray transmission properties, or millimeter wave properties.
    Type: Application
    Filed: January 25, 2022
    Publication date: May 12, 2022
    Applicant: The Government of the United States of America, as represented by the Secretary of Homeland Security
    Inventors: Michael Brogden, Steve Duffy
  • High fidelity sheet explosive simulants
    Patent number: 11254623
    Abstract: An explosive sheet simulant that uses an ethylene vinyl acetate polymer combined with a mixture of a boron carbide and iron oxide for X-ray attenuating properties, and components of the mixture selected for predetermined flexural modulus combined with particle density, effective atomic number, X-ray transmission properties, or millimeter wave properties.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: February 22, 2022
    Assignee: The Government of the United States of America, as represented by the Secretary of Homeland Security
    Inventors: Michael Brogden, Steve Duffy
  • HIGH FIDELITY SHEET EXPLOSIVE SIMULANTS
    Publication number: 20210188732
    Abstract: An explosive sheet simulant that uses an ethylene vinyl acetate polymer combined with a mixture of a boron carbide and iron oxide for X-ray attenuating properties, and components of the mixture selected for predetermined flexural modulus combined with particle density, effective atomic number, X-ray transmission properties, or millimeter wave properties.
    Type: Application
    Filed: March 5, 2021
    Publication date: June 24, 2021
    Applicant: The Government of the United States of America, as represented by the Secretary of Homeland Security
    Inventors: Michael Brogden, Steve Duffy
  • High fidelity sheet explosive simulants
    Patent number: 10941085
    Abstract: An explosive sheet simulant that uses an ethylene vinyl acetate polymer combined with either a mixture of a boron carbide and iron oxide for X-ray attenuating properties or calcium carbonate for millimeter wave properties, wherein the components of the mixture are selected such that the sheet has a predetermined flexural modulus combined with particle density, effective atomic number, x-ray transmission properties, or millimeter wave properties.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: March 9, 2021
    Assignee: The Government of the United States of America, as represented by the Secretary of Homeland Security
    Inventors: Michael Brogden, Steve Duffy
  • HIGH FIDELITY SHEET EXPLOSIVE SIMULANTS
    Publication number: 20180339952
    Abstract: An explosive sheet simulant that uses an ethylene vinyl acetate polymer combined with either a mixture of a boron carbide and iron oxide for X-ray attenuating properties or calcium carbonate for millimeter wave properties, wherein the components of the mixture are selected such that the sheet has a predetermined flexural modulus combined with particle density, effective atomic number, x-ray transmission properties, or millimeter wave properties.
    Type: Application
    Filed: May 25, 2017
    Publication date: November 29, 2018
    Applicant: The Government of the United States of America, as represented by the Secretary of Homeland Security
    Inventors: Michael Brogden, Steve Duffy