Patents by Inventor David Delpy

David Delpy 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).

  • Optical fibre probe for photoacoustic material analysis
    Patent number: 6839496
    Abstract: A probe comprises an excitation source and a double-core optical fiber. A pulsed laser signal (20) of the excitation sources supplied to the outer core (42) at one end of the optical fiber. The other end is provided with an interferometer film (18). An excitation signal (22) produced in the sample (10) modulates the thickness of the film (18). This provides an interferometer signal (26, 28) detected from the inner core (40).
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: January 4, 2005
    Assignee: University College of London
    Inventors: Timothy Noel Mills, Paul Beard, David Delpy
  • Fabrication of fabry-perot polymer film sensing interferometers
    Patent number: 6813401
    Abstract: A method of forming an interferometer film for an interferometer sensor comprises forming a parylene polymer layer (8) of substantially uniform thickness directly on an interferometer substrate (4;45), the layer forming the interferometer film. Since the interferometer film (8) formed directly onto the surface of the interferometer substrate, there is improved conformity between the two surfaces at the interface between the polymer layer and the substrate and improved uniformity in the thickness of the film.
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: November 2, 2004
    Assignee: University College London
    Inventors: Timothy Noel Mills, Paul Beard, David Delpy