Patents by Inventor Douglas E. Freeman

Douglas E. Freeman 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).

  • Light weight thermoplastic flex foam and hybrid duct system
    Patent number: 10647074
    Abstract: An aerospace vessel including a fuselage, a means for causing the fuselage to fly coupled to the fuselage, and an environmental control system within the fuselage. The environmental control system includes a duct made of closed cell thermoplastic foam, such as polyvinylidene fluoride foam.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: May 12, 2020
    Assignee: The Boeing Company
    Inventors: Walter Forrest Frantz, Jayant D. Patel, Douglas Dean Maben, Bruce Whitman, Douglas E. Freeman
  • Light weight thermoplastic flex foam and hybrid duct system
    Patent number: 9669593
    Abstract: An aerospace vessel including a fuselage, a means for causing the fuselage to fly coupled to the fuselage, and an environmental control system within the fuselage. The environmental control system includes a duct made of closed cell thermoplastic foam, such as polyvinylidene fluoride foam.
    Type: Grant
    Filed: June 14, 2007
    Date of Patent: June 6, 2017
    Assignee: THE BOEING COMPANY
    Inventors: Walter Forrest Frantz, Jayant D. Patel, Douglas Dean Maben, Bruce Whitman, Douglas E. Freeman
  • Light Weight Thermoplastic Flex Foam and Hybrid Duct System
    Publication number: 20170082314
    Abstract: An aerospace vessel including a fuselage, a means for causing the fuselage to fly coupled to the fuselage, and an environmental control system within the fuselage. The environmental control system includes a duct made of closed cell thermoplastic foam, such as polyvinylidene fluoride foam.
    Type: Application
    Filed: December 6, 2016
    Publication date: March 23, 2017
    Inventors: Walter Forrest Frantz, Jayant D. Patel, Douglas Dean Maben, Bruce Whitman, Douglas E. Freeman
  • Method of forming a light weight thermoplastic flex foam and hybrid duct system
    Patent number: 9168708
    Abstract: A method of forming a closed cell thermoplastic foam duct and a method of forming a duct and attaching it to an aircraft environmental control system. The environmental control system includes a duct made of closed cell thermoplastic foam, such as polyvinylidene fluoride foam.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: October 27, 2015
    Assignee: THE BOEING COMPANY
    Inventors: Walter Forrest Frantz, Jayant D. Patel, Douglas Dean Maben, Bruce Whitman, Douglas E. Freeman
  • Light Weight Thermoplastic Flex Foam and Hybrid Duct System
    Publication number: 20130276959
    Abstract: An aerospace vessel including a fuselage, a means for causing the fuselage to fly coupled to the fuselage, and an environmental control system within the fuselage. The environmental control system includes a duct made of closed cell thermoplastic foam, such as polyvinylidene fluoride foam.
    Type: Application
    Filed: June 20, 2013
    Publication date: October 24, 2013
    Inventors: Walter Forrest Frantz, Jayant D. Patel, Douglas Dean Maben, Bruce Whitman, Douglas E. Freeman
  • LIGHT WEIGHT THERMOPLASTIC FLEX FOAM AND HYBRID DUCT SYSTEM
    Publication number: 20080308674
    Abstract: An aerospace vessel including a fuselage, a means for causing the fuselage to fly coupled to the fuselage, and an environmental control system within the fuselage. The environmental control system includes a duct made of closed cell thermoplastic foam, such as polyvinylidene fluoride foam.
    Type: Application
    Filed: June 14, 2007
    Publication date: December 18, 2008
    Inventors: Walter Forrest Frantz, Jayant D. Patel, Douglas Dean Maben, Bruce Whitman, Douglas E. Freeman