Patents by Inventor Thomas L. Bougher

Thomas L. Bougher 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: 20200251401
    Abstract: Carbon nanotube (CNT) forests or sheets coated and/or bonded at room temperature with one or more coatings were measured to produce thermal resistances that are on par with conventional metallic solders. These results were achieved by reducing the high contact resistance at CNT tips and/or sidewalls, which has encumbered the development of high-performance thermal interface materials based on CNTs. Resistances as low as 4.9±0.3 mm2-K/W were achieved for the entire polymer-coated CNT interface structure.
    Type: Application
    Filed: November 4, 2019
    Publication date: August 6, 2020
    Inventors: Baratunde Cola, Virendra Singh, Thomas L. Bougher, John H. Taphouse
  • Patent number: 10724153
    Abstract: Nano structured surfaces and bulk composite materials which exhibit tunable surface morphology, wettability, thermal conductivity, and total thermal resistance properties, and methods of fabrication and uses thereof are described herein. Arrays of vertically-aligned nanostructures produced via a template assisted fabrication approach using nanoporous templates, or alternatively, via an electropolymerization process are described. As a result, control over the surface morphology and wettability can be achieved using the selective template etching process. The composite materials also demonstrate tunable thermal and electrical properties based on the methods of their fabrication. The arrays of polymeric nanostructures are chemically, mechanically, and thermally robust and can serve as soft substrates with heat dissipation capability for use in the fabrication of thermal management materials, tunable wetting for microfluidic applications, and for use in heterojunction organic photovoltaic cells.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: July 28, 2020
    Assignee: GEORGIA TECH RESEARCH CORPORATION
    Inventors: Baratunde Cola, Thomas L. Bougher, Kyriaki Kalaitzidou, Virendra Singh, Matthew Smith
  • Publication number: 20200131419
    Abstract: In order to provide a thermally conductive polymer-based resin that may be molded using a range of thermoplastic manufacturing techniques, a composition includes a thermoplastic polymer and/or elastomer, a polymer fiber, a binding agent, and a thermally conductive filler. The composition includes from 40 to 80 volume percentage of a thermoplastic polymer and/or a thermoplastic elastomer, from 5 to 30 volume percentage of a polymer fiber, from 0.1 to 20 volume percentage of a binding agent, and from 10 to 40 volume percentage of a thermally conductive filler. The polymer fibers and thermally conductive fillers are combined to create a hybrid thermally conductive particle for better feeding in standard plastic processing methods. The polymer fiber has an aspect ratio greater than 10. The filler has a thermal conductivity greater than or equal to 10 W/m-K. The composition is characterized by a thermal conductivity of at least 1 W/m-K.
    Type: Application
    Filed: October 25, 2019
    Publication date: April 30, 2020
    Inventors: Thomas L. Bougher, Matthew K. Smith, Baratunde Cola, Kyriaki Kalaitzidou
  • Patent number: 10468327
    Abstract: Carbon nanotube (CNT) forests or sheets coated and/or bonded at room temperature with one or more coatings were measured to produce thermal resistances that are on par with conventional metallic solders. These results were achieved by reducing the high contact resistance at CNT tips and/or sidewalls, which has encumbered the development of high-performance thermal interface materials based on CNTs. Resistances as low as 4.9±0.3 mm2?K/W were achieved for the entire polymer-coated CNT interface structure.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: November 5, 2019
    Assignee: Georgia Tech Research Corporation
    Inventors: Baratunde Cola, Virendra Singh, Thomas L. Bougher, John H. Taphouse
  • Publication number: 20180155854
    Abstract: Nano structured surfaces and bulk composite materials which exhibit tunable surface morphology, wettability, thermal conductivity, and total thermal resistance properties, and methods of fabrication and uses thereof are described herein. Arrays of vertically-aligned nanostructures produced via a template assisted fabrication approach using nanoporous templates, or alternatively, via an electropolymerization process are described. As a result, control over the surface morphology and wettability can be achieved using the selective template etching process. The composite materials also demonstrate tunable thermal and electrical properties based on the methods of their fabrication. The arrays of polymeric nanostructures are chemically, mechanically, and thermally robust and can serve as soft substrates with heat dissipation capability for use in the fabrication of thermal management materials, tunable wetting for microfluidic applications, and for use in heterojunction organic photovoltaic cells.
    Type: Application
    Filed: June 11, 2015
    Publication date: June 7, 2018
    Inventors: Baratunde Cola, Thomas L. Bougher, Kyriaki Kalaitzidou, Virendra Singh, Matthew Smith
  • Publication number: 20140227477
    Abstract: Carbon nanotube (CNT) forests or sheets coated and/or bonded at room temperature with one or more coatings were measured to produce thermal resistances that are on par with conventional metallic solders. These results were achieved by reducing the high contact resistance at CNT tips and/or sidewalls, which has encumbered the development of high-performance thermal interface materials based on CNTs. Resistances as low as 4.9±0.3 mm2-K/W were achieved for the entire polymer-coated CNT interface structure.
    Type: Application
    Filed: September 21, 2012
    Publication date: August 14, 2014
    Applicant: Georgia Tech Research Corporation
    Inventors: Baratunde Cola, Virendra Singh, Thomas L. Bougher, John H. Taphouse
  • Patent number: 7280268
    Abstract: Optical parametric oscillators (OPO) and systems are provided. The OPO has a non-linear optical material located between two optical elements where the product of the reflection coefficients of the optical elements are higher at the output wavelength than at either the pump or idler wavelength. The OPO output may be amplified using an additional optical parametric amplifier (OPA) stage.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: October 9, 2007
    Assignee: Purdue Research Foundation
    Inventors: Robert P. Lucht, Waruna D. Kulatilaka, Thomas N. Anderson, Thomas L. Bougher