Patents by Inventor Andrew John Ferguson

Andrew John Ferguson 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).

  • Methods of preparing single-walled carbon nanotube networks
    Patent number: 11796488
    Abstract: Methods for determining desired doping conditions for a semiconducting single-walled carbon nanotube (s-SWCNT) are provided. One exemplary method includes doping each of a plurality of s-SWCNT networks under a respective set of doping conditions; determining a thermoelectric (TE) power factor as a function of a fractional bleach of an absorption spectrum for the plurality of s-SWCNT networks doped under the respective sets of doping conditions; and using the function to identify one of the TE power factors within a range of the fractional bleach of the absorption spectrum. The identified TE power factor corresponds to the desired doping conditions.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: October 24, 2023
    Assignee: Alliance for Sustainable Energy, LLC
    Inventors: Azure Dee Avery, Jeffrey Lee Blackburn, Andrew John Ferguson, Taylor Christie Julia Aubry-Komin
  • Compositions having reduced thermal conductivities and methods of making the same
    Patent number: 11787697
    Abstract: The present disclosure relates to a composition that includes a film having a network of randomly aligned carbon nanotubes, where the carbon nanotubes have an average diameter between about 0.6 nm and about 2.0 nm and the carbon nanotubes form bundles having an average diameter between about 3 nm and about 50 nm. In addition, the composition is characterized by a power factor ?2? between 1 ?W/mK2 and about 3500 ?W/mK2 and by ZT=?2?T/k between about 0.02 and about 2.0 over a temperature range between about 100 K and about 500 K.
    Type: Grant
    Filed: September 14, 2021
    Date of Patent: October 17, 2023
    Assignees: Alliance for Sustainable Energy, LLC, University of Denver
    Inventors: Jeffrey Lee Blackburn, Andrew John Ferguson, Barry Lee Zink
  • ELECTRONIC RATCHET
    Publication number: 20220238823
    Abstract: Electronic ratchet devices comprising a pair of first and second electrodes; a dielectric layer; a gate electrode layer; and a transport layer are disclosed herein.
    Type: Application
    Filed: May 22, 2020
    Publication date: July 28, 2022
    Inventors: Andrew John FERGUSON, Jeffrey Lee BLACKBURN, Ji HAO
  • COMPOSITIONS HAVING REDUCED THERMAL CONDUCTIVITIES AND METHODS OF MAKING THE SAME
    Publication number: 20220081297
    Abstract: The present disclosure relates to a composition that includes a film having a network of randomly aligned carbon nanotubes, where the carbon nanotubes have an average diameter between about 0.6 nm and about 2.0 nm and the carbon nanotubes form bundles having an average diameter between about 3 nm and about 50 nm. In addition, the composition is characterized by a power factor ?2? between 1 ?W/mK2 and about 3500 ?W/mK2 and by ZT=?2?T/k between about 0.02 and about 2.0 over a temperature range between about 100 K and about 500 K.
    Type: Application
    Filed: September 14, 2021
    Publication date: March 17, 2022
    Inventors: Jeffrey Lee BLACKBURN, Andrew John FERGUSON, Barry Lee ZINK
  • METHODS OF PREPARING SINGLE-WALLED CARBON NANOTUBE NETWORKS
    Publication number: 20210164923
    Abstract: Methods for determining desired doping conditions for a semiconducting single-walled carbon nanotube (s-SWCNT) are provided. One exemplary method includes doping each of a plurality of s-SWCNT networks under a respective set of doping conditions; determining a thermoelectric (TE) power factor as a function of a fractional bleach of an absorption spectrum for the plurality of s-SWCNT networks doped under the respective sets of doping conditions; and using the function to identify one of the TE power factors within a range of the fractional bleach of the absorption spectrum. The identified TE power factor corresponds to the desired doping conditions.
    Type: Application
    Filed: January 15, 2021
    Publication date: June 3, 2021
    Inventors: Azure Dee AVERY, Jeffrey Lee BLACKBURN, Andrew John FERGUSON, Taylor Christie Julia AUBRY-KOMIN
  • Methods of preparing single-walled carbon nanotube networks
    Patent number: 10928334
    Abstract: Methods for determining desired doping conditions for a semiconducting single-walled carbon nanotube (s-SWCNT) are provided. One exemplary method includes doping each of a plurality of s-SWCNT networks under a respective set of doping conditions; determining a thermoelectric (TE) power factor as a function of a fractional bleach of an absorption spectrum for the plurality of s-SWCNT networks doped under the respective sets of doping conditions; and using the function to identify one of the TE power factors within a range of the fractional bleach of the absorption spectrum. The identified TE power factor corresponds to the desired doping conditions.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: February 23, 2021
    Assignee: Alliance for Sustainable Energy, LLC
    Inventors: Azure Dee Avery, Jeffrey Lee Blackburn, Andrew John Ferguson
  • METHODS OF PREPARING SINGLE-WALLED CARBON NANOTUBE NETWORKS
    Publication number: 20200278307
    Abstract: Methods for determining desired doping conditions for a semiconducting single-walled carbon nanotube (s-SWCNT) are provided. One exemplary method includes doping each of a plurality of s-SWCNT networks under a respective set of doping conditions; determining a thermoelectric (TE) power factor as a function of a fractional bleach of an absorption spectrum for the plurality of s-SWCNT networks doped under the respective sets of doping conditions; and using the function to identify one of the TE power factors within a range of the fractional bleach of the absorption spectrum. The identified TE power factor corresponds to the desired doping conditions.
    Type: Application
    Filed: February 7, 2020
    Publication date: September 3, 2020
    Inventors: Azure Dee AVERY, Jeffrey Lee BLACKBURN, Andrew John FERGUSON
  • Methods of preparing single-walled carbon nanotube networks
    Patent number: 10598614
    Abstract: Methods for determining desired doping conditions for a semiconducting single-walled carbon nanotube (s-SWCNT) are provided. One exemplary method includes doping each of a plurality of s-SWCNT networks under a respective set of doping conditions; determining a thermoelectric (TE) power factor as a function of a fractional bleach of an absorption spectrum for the plurality of s-SWCNT networks doped under the respective sets of doping conditions; and using the function to identify one of the TE power factors within a range of the fractional bleach of the absorption spectrum. The identified TE power factor corresponds to the desired doping conditions.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: March 24, 2020
    Assignee: Alliance for Sustainable Energy, LLC
    Inventors: Azure Dee Avery, Jeffrey Lee Blackburn, Andrew John Ferguson
  • METHODS OF PREPARING SINGLE-WALLED CARBON NANOTUBE NETWORKS
    Publication number: 20180194629
    Abstract: Methods for determining desired doping conditions for a semiconducting single-walled carbon nanotube (s-SWCNT) are provided. One exemplary method includes doping each of a plurality of s-SWCNT networks under a respective set of doping conditions; determining a thermoelectric (TE) power factor as a function of a fractional bleach of an absorption spectrum for the plurality of s-SWCNT networks doped under the respective sets of doping conditions; and using the function to identify one of the TE power factors within a range of the fractional bleach of the absorption spectrum. The identified TE power factor corresponds to the desired doping conditions.
    Type: Application
    Filed: July 13, 2016
    Publication date: July 12, 2018
    Inventors: Azure Dee Avery, Jeffrey Lee Blackburn, Andrew John Ferguson