Patents by Inventor David Barry Ingram

David Barry Ingram 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).

  • AIRCRAFT
    Publication number: 20020074452
    Abstract: An aircraft capable of vertical take off and normal cruise flight has a fuselage and a pair of wings, the wings being movable relative to the fuselage from a rearwardly swept position to which the wings are moved for vertical take off, to a spread position to which the wings are moved for normal cruise flight.
    Type: Application
    Filed: December 18, 2000
    Publication date: June 20, 2002
    Inventor: David Barry Ingram
  • Aircraft
    Patent number: 6398157
    Abstract: An aircraft capable of vertical take off and normal cruise flight has a fuselage and a pair of wings, the wings being movable relative to the fuselage from a rearwardly swept position to which the wings are moved for vertical take off, to a spread position to which the wings are moved for normal cruise flight.
    Type: Grant
    Filed: December 18, 2000
    Date of Patent: June 4, 2002
    Assignee: GKN Westland Helicopter Limited
    Inventor: David Barry Ingram