Patents Assigned to The Trustees of Princeton Univ.
  • Patent number: 5964433
    Abstract: The boundary layer of a fluid travelling in a mean-flow direction relative to a surface of a wall of a body is controlled by generating in the fluid a magnetic field B having flux lines along the surface of the wall and an electric current density J traversing the magnetic flux lines in the fluid to form a control region. The magnetic field B and the electric current density J create in the control region a force J.times.B that introduces a vorticity distribution .omega. (x,y,z,t) into the flow. A plurality of such control regions is arranged in an two-dimensional array of control tiles that are actuated such that over the array the vorticity at the wall in the direction transverse to the free-stream direction is reduced and creation of the boundary layer vorticity concentrations in the free-stream direction is inhibited.
    Type: Grant
    Filed: November 19, 1996
    Date of Patent: October 12, 1999
    Assignee: The Trustees of Princeton Univ.
    Inventor: Daniel M. Nosenchuck
  • Patent number: 5844363
    Abstract: An organic light emitting device (OLED) is disclosed for which the hole transporting layer, the electron transporting layer and/or the emissive layer, if separately present, is comprised of a non-polymeric material. A method for preparing such OLED's using vacuum deposition techniques is further disclosed.
    Type: Grant
    Filed: January 23, 1997
    Date of Patent: December 1, 1998
    Assignee: The Trustees of Princeton Univ.
    Inventors: Gong Gu, Paul Burrows, Stephen R. Forrest