Patents by Inventor Douglas Fox

Douglas Fox 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).

  • Patent number: 12084570
    Abstract: A flame retardant composition comprising chitosan or a modified chitosan, as well as a method for preparing a flame retardant comprising chitosan or a modified chitosan, is provided. Also provided are methods for making a flame retardant article using the described flame retardant composition. In various embodiments, the flame retardant composition is prepared by dissolution of chitosan or a modified chitosan by an aqueous acid, followed by evaporation of the water. In various embodiments, the flame retardant composition can further include at least one additional component selected from the group consisting of a polyol, flame retardant, nitrogen containing compound, carbonate containing compound, crosslinking agent, and combinations thereof.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: September 10, 2024
    Assignee: AMERICAN UNIVERSITY
    Inventors: Douglas Fox, Mauro Zammarano, Whirang Cho
  • Patent number: 11840583
    Abstract: The present application relates to cellulose nanocrystals and other anionic carbohydrates and methods of preparation thereof. Specifically, in certain embodiments, the cellulose nanocrystals are modified using ion exchange technology to yield thermally stable or task-specific, dispersible cellulose nanocrystals.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: December 12, 2023
    Assignee: AMERICAN UNIVERSITY
    Inventor: Douglas Fox
  • Publication number: 20210253743
    Abstract: The present application relates to cellulose nanocrystals and other anionic carbohydrates and methods of preparation thereof. Specifically, in certain embodiments, the cellulose nanocrystals are modified using ion exchange technology to yield thermally stable or task-specific, dispersible cellulose nanocrystals.
    Type: Application
    Filed: April 22, 2021
    Publication date: August 19, 2021
    Applicant: AMERICAN UNIVERSITY
    Inventor: Douglas FOX
  • Patent number: 11014993
    Abstract: The present application relates to cellulose nanocrystals and other anionic carbohydrates and methods of preparation thereof. Specifically, in certain embodiments, the cellulose nanocrystals are modified using ion exchange technology to yield thermally stable or task-specific, dispersible cellulose nanocrystals.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: May 25, 2021
    Assignee: AMERICAN UNIVERSITY
    Inventor: Douglas Fox
  • Publication number: 20210095102
    Abstract: A flame retardant composition comprising chitosan or a modified chitosan, as well as a method for preparing a flame retardant comprising chitosan or a modified chitosan, is provided. Also provided are methods for making a flame retardant article using the described flame retardant composition. In various embodiments, the flame retardant composition is prepared by dissolution of chitosan or a modified chitosan by an aqueous acid, followed by evaporation of the water. In various embodiments, the flame retardant composition can further include at least one additional component selected from the group consisting of a polyol, flame retardant, nitrogen containing compound, carbonate containing compound, crosslinking agent, and combinations thereof.
    Type: Application
    Filed: September 10, 2020
    Publication date: April 1, 2021
    Inventors: Douglas Fox, Mauro Zammarano, Whirang Cho
  • Patent number: 10494531
    Abstract: A flame retardant coating composition comprising poly(dopamine) and either tris(hydroxymethyl)aminomethane) or gaseous ammonia, as well as an article comprising a substrate and the flame retardant coating composition, is provided. In various embodiments, the poly(dopamine) is substantially water insoluble. The coating composition can further comprise at least one additional component selected from the group consisting of melamine, an anionic clay, a phosphorus-containing compound, an amine-containing compound, aluminosilicates, silicon oxides, and combinations thereof. Also provided are methods for forming the flame retardant coating composition and methods for increasing flame retardant properties of a substrate.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: December 3, 2019
    Assignee: AMERICAN UNIVERSITY
    Inventors: Mauro Zammarano, Douglas Fox, Philipp Grützmacher, Rick Davis
  • Patent number: 10241733
    Abstract: An example disclosed method includes providing power transmissions from a power storage unit to a power converter of a printing device, the power converter to supply an available amount of power to a print mechanism, the print mechanism having separately controllable print elements; determining a required amount of power for an upcoming print operation that involves energizing the print elements, the print elements including a first group of the print elements and a second group of the print elements; when the required amount of power is less than or equal to the available amount of power, performing the print operation by simultaneously energizing the print elements; and when the required amount of power is greater than the available amount of power, performing the print operation by alternately energizing the first group of the print elements at first times and the second group of the print elements at second times.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: March 26, 2019
    Assignee: Zebra Technologies Corporation
    Inventors: David L. Poole, Douglas A. Fox, Robert A. Ehrhardt, Eugene K. Brown, Rod DeMay, John Ham, Gary F. Lynch, Donald V. Thielen
  • Publication number: 20170321068
    Abstract: A flame retardant coating composition comprising poly(dopamine) and either tris(hydroxymethyl)aminomethane) or gaseous ammonia, as well as an article comprising a substrate and the flame retardant coating composition, is provided. In various embodiments, the poly(dopamine) is substantially water insoluble. The coating composition can further comprise at least one additional component selected from the group consisting of melamine, an anionic clay, a phosphorus-containing compound, an amine-containing compound, aluminosilicates, silicon oxides, and combinations thereof. Also provided are methods for forming the flame retardant coating composition and methods for increasing flame retardant properties of a substrate.
    Type: Application
    Filed: May 23, 2017
    Publication date: November 9, 2017
    Inventors: Mauro Zammarano, Douglas Fox, Philipp Grützmacher, Rick Davis
  • Publication number: 20170315761
    Abstract: An example disclosed method includes providing power transmissions from a power storage unit to a power converter of a printing device, the power converter to supply an available amount of power to a print mechanism, the print mechanism having separately controllable print elements; determining a required amount of power for an upcoming print operation that involves energizing the print elements, the print elements including a first group of the print elements and a second group of the print elements; when the required amount of power is less than or equal to the available amount of power, performing the print operation by simultaneously energizing the print elements; and when the required amount of power is greater than the available amount of power, performing the print operation by alternately energizing the first group of the print elements at first times and the second group of the print elements at second times.
    Type: Application
    Filed: July 20, 2017
    Publication date: November 2, 2017
    Inventors: David L. Poole, Douglas A. Fox, Robert A. Ehrhardt, Eugene K. Brown, Rod DeMay, John Ham, Gary F. Lynch, Donald V. Thielen
  • Patent number: 9747062
    Abstract: Ethernet and Universal Serial Bus (USB) powered printing devices are provided. In particular, Ethernet and USB powered printers and methods of Ethernet powering of printers that support high speed printing and/or data intensive printing. Such high-speed and/or data intensive printing operations are able to be Ethernet or USB powered by providing for a power storage unit within the printer device that is able be charged during non-printing periods and provide for necessary energy bursts to support such higher powered processes. In addition, the present invention provides for devices and methods that allow for printers to operate with main power provided by conventional power mains and for back-up or secondary power to be supplied by Ethernet or USB power. Additionally, the invention provides for Ethernet or USB powering, both primary and back-up, of the data and configuration settings in the printer control and image generating electronics.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: August 29, 2017
    Assignee: ZIH Corp.
    Inventors: David L. Poole, Douglas A. Fox, Robert A. Ehrhardt, Eugene K. Brown, Rod Demay, John Ham, Gary F. Lynch, Donald V. Thielen
  • Patent number: 9688867
    Abstract: A flame retardant coating composition comprising poly(dopamine) and either tris(hydroxymethyl)aminomethane) or gaseous ammonia, as well as an article comprising a substrate and the flame retardant coating composition, is provided. In various embodiments, the poly(dopamine) is substantially water insoluble. The coating composition can further comprise at least one additional component selected from the group consisting of melamine, an anionic clay, a phosphorus-containing compound, an amine-containing compound, aluminosilicates, silicon oxides, and combinations thereof. Also provided are methods for forming the flame retardant coating composition and methods for increasing flame retardant properties of a substrate.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: June 27, 2017
    Assignees: AMERICAN UNIVERSITY, THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE, THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY
    Inventors: Mauro Zammarano, Douglas Fox, Philipp Grützmacher, Rick Davis
  • Publication number: 20170037155
    Abstract: The present application relates to cellulose nanocrystals and other anionic carbohydrates and methods of preparation thereof. Specifically, in certain embodiments, the cellulose nanocrystals are modified using ion exchange technology to yield thermally stable or task-specific, dispersible cellulose nanocrystals.
    Type: Application
    Filed: August 5, 2016
    Publication date: February 9, 2017
    Applicant: AMERICAN UNIVERSITY
    Inventor: Douglas Fox
  • Patent number: 9332927
    Abstract: A diagnostic system is disclosed, and comprises a diagnostic device and a fluid heat transfer system. The diagnostic device has an associated bed for supporting a portion of a subject during a diagnostic procedure. The fluid heat transfer system comprises a fluid circulation component, a heater component, and a fluid line. The heater component includes a heater element and a mixing valve, and the fluid circulation component is fluidly coupled to the heater component so that a fluid can be pumped from the fluid circulation component to the heater component. The fluid line extends from the heater to the fluid circulation component, and the mixing valve is positioned near the bed so that heat can be rapidly transferred through the fluid line to alter a body temperature of the subject.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: May 10, 2016
    Assignee: SA Instruments, Inc.
    Inventors: George Ronald Morris, Sr., Douglas Fox Tomlinson
  • Publication number: 20160110141
    Abstract: Ethernet and Universal Serial Bus (USB) powered printing devices are provided. In particular, Ethernet and USB powered printers and methods of Ethernet powering of printers that support high speed printing and/or data intensive printing. Such high-speed and/or data intensive printing operations are able to be Ethernet or USB powered by providing for a power storage unit within the printer device that is able be charged during non-printing periods and provide for necessary energy bursts to support such higher powered processes. In addition, the present invention provides for devices and methods that allow for printers to operate with main power provided by conventional power mains and for back-up or secondary power to be supplied by Ethernet or USB power. Additionally, the invention provides for Ethernet or USB powering, both primary and back-up, of the data and configuration settings in the printer control and image generating electronics.
    Type: Application
    Filed: October 9, 2015
    Publication date: April 21, 2016
    Inventors: David L. Poole, Douglas A. Fox, Robert A. Ehrhardt, Eugene K. Brown, Rod Demay, John Ham, Gary F. Lynch, Donald V. Thielen
  • Patent number: 9189184
    Abstract: Communication port powered printers and methods of powering of printers that support high speed printing and/or data intensive printing are discussed herein. Some embodiments may provide for a power storage unit within the printer device that is able be charged during non-priming periods and provide for necessary energy bursts to support such higher powered processes. Some embodiments may provide for devices and methods that allow for printers to operate with main power provided by conventional power mains and for back-up or secondary power to be supplied by the communication port. Some embodiments may further provide for configuration settings in printer control electronics based on the available power from the communication port.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: November 17, 2015
    Assignee: ZIH Corp.
    Inventors: David L. Poole, Douglas A. Fox, Robert A. Ehrhardt, Eugene K. Brown, Rod Demay, John Ham, Gary F. Lynch, Donald V. Thielen
  • Publication number: 20150073071
    Abstract: A flame retardant coating composition comprising poly(dopamine) and either tris(hydroxymethyl)aminomethane) or gaseous ammonia, as well as an article comprising a substrate and the flame retardant coating composition, is provided. In various embodiments, the poly(dopamine) is substantially water insoluble. The coating composition can further comprise at least one additional component selected from the group consisting of melamine, an anionic clay, a phosphorus-containing compound, an amine-containing compound, aluminosilicates, silicon oxides, and combinations thereof. Also provided are methods for forming the flame retardant coating composition and methods for increasing flame retardant properties of a substrate.
    Type: Application
    Filed: July 21, 2014
    Publication date: March 12, 2015
    Inventors: Mauro Zammarano, Douglas Fox, Philipp Grützmacher, Rick Davis
  • Publication number: 20140257082
    Abstract: A diagnostic system is disclosed, and comprises a diagnostic device and a fluid heat transfer system. The diagnostic device has an associated bed for supporting a portion of a subject during a diagnostic procedure. The fluid heat transfer system comprises a fluid circulation component, a heater component, and a fluid line. The heater component includes a heater element and a mixing valve, and the fluid circulation component is fluidly coupled to the heater component so that a fluid can be pumped from the fluid circulation component to the heater component. The fluid line extends from the heater to the fluid circulation component, and the mixing valve is positioned near the bed so that heat can be rapidly transferred through the fluid line to alter a body temperature of the subject.
    Type: Application
    Filed: March 5, 2014
    Publication date: September 11, 2014
    Applicant: SA INSTRUMENTS, INC.
    Inventors: George Ronald Morris, SR., Douglas Fox Tomlinson
  • Publication number: 20140153026
    Abstract: Communication port powered printers and methods of powering of printers that support high speed printing and/or data intensive printing are discussed herein. Some embodiments may provide for a power storage unit within the printer device that is able be charged during non-printing periods and provide for necessary energy bursts to support such higher powered processes. Some embodiments may provide for devices and methods that allow for printers to operate with main power provided by conventional power mains and for back-up or secondary power to be supplied by the communication port. Some embodiments may further provide for configuration settings in printer control electronics based on available power from the communication port.
    Type: Application
    Filed: November 15, 2013
    Publication date: June 5, 2014
    Applicant: ZIH Corp.
    Inventors: David L. Poole, Douglas A. Fox, Robert A. Ehrhardt, Eugene K. Brown, Rod Demay, John Ham, Gary F. Lynch, Donald V. Thielen
  • Patent number: 8587825
    Abstract: Ethernet and Universal Serial Bus (USB) powered printing devices are provided. In particular, Ethernet and USB powered printers and methods of Ethernet powering of printers that support high speed printing and/or data intensive printing. Such high-speed and/or data intensive printing operations are able to be Ethernet or USB powered by providing for a power storage unit within the printer device that is able be charged during non-printing periods and provide for necessary energy bursts to support such higher powered processes. In addition, the present invention provides for devices and methods that allow for printers to operate with main power provided by conventional power mains and for back-up or secondary power to be supplied by Ethernet or USB power. Additionally, the invention provides for Ethernet or USB powering, both primary and back-up, of the data and configuration settings in the printer control and image generating electronics.
    Type: Grant
    Filed: January 20, 2006
    Date of Patent: November 19, 2013
    Assignee: ZIH Corp
    Inventors: David L. Poole, Douglas A. Fox, Robert A. Ehrhardt, Jr., Eugene K. Brown, Rod DeMay, John Ham, Gary F. Lynch, Donald V. Thielen
  • Publication number: 20080006002
    Abstract: A light steel structural member includes a web portion and a pair of flanges. The web portion has a web face. The pair of flange portions each extend generally orthogonally from each end of the web portion. The flange portions each having a plane and the planes are generally parallel each other and each flange has a flange face. At least one of the web face and the flange face has a plurality of embosses formed therein. In another embodiment the light steel structural member further includes a pair of restraining ribs. In a further embodiment the light steel structural member further includes a pair of lips and a pair of multi-cranked stiffeners. A method of making the light steel structural members is shown.
    Type: Application
    Filed: May 18, 2007
    Publication date: January 10, 2008
    Inventors: Michael Strickland, Douglas Fox, Richard Strickland