Patents by Inventor David L. Perlman

David L. Perlman 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).

  • Enhanced performance rotorcraft rotor blade
    Patent number: 9446843
    Abstract: An enhanced performance rotorcraft rotor blade system and methods are presented. A rotor blade comprises an inboard blade portion, and at least one controllable surface coupled to the inboard blade portion. The at least one controllable surface is operable to improve a lift of the inboard blade portion by altering an angle of attack of the inboard blade portion independent of the rotor blade.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: September 20, 2016
    Assignee: The Boeing Company
    Inventor: David L. Perlman
  • ENHANCED PERFORMANCE ROTORCRAFT ROTOR BLADE
    Publication number: 20130259681
    Abstract: An enhanced performance rotorcraft rotor blade system and methods are presented. A rotor blade comprises an inboard blade portion, and at least one controllable surface coupled to the inboard blade portion. The at least one controllable surface is operable to improve a lift of the inboard blade portion by altering an angle of attack of the inboard blade portion independent of the rotor blade.
    Type: Application
    Filed: March 27, 2012
    Publication date: October 3, 2013
    Inventor: David L. Perlman