Patents by Inventor Mary H. Pritchard

Mary H. Pritchard 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).

  • High intensity Fourier spectrometer
    Patent number: 4601579
    Abstract: A system for reducing wavelength error caused by angular motion of the moving mirror of an interferometer, such as a Michelson interferometer having fore-optics introducing a beam of radiant energy for impingement on the moving mirror, teaches reducing, without necessary loss of energy, the width of the beam before impingement on the moving mirror; other advantages also accrue to use of the reduced width beam, such as facility in use of absorption cells and multiplying clear path length, when desired.
    Type: Grant
    Filed: November 4, 1983
    Date of Patent: July 22, 1986
    Inventors: James L. Pritchard, James A. Pritchard, Mary H. Pritchard