Patents by Inventor William S. Ewing

William S. Ewing 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).

  • Apparatus for multi-spectral imaging of point event detection
    Patent number: 8860942
    Abstract: A multi-spectral system characterizes point events and other rapidly-occurring events by filtering spectral bands from a point event to form spectral diagrams of the event.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: October 14, 2014
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: William S. Ewing, Mohammad I. Vakil
  • Multi-band direct vision prism
    Patent number: 6935757
    Abstract: A multi-band direct prism comprising at least first and second prismatic elements of disparate refractive indices facilitates the contemporaneous analysis of dispersed emergent light energy within at least two distinct and predetermined sets of energy wavelengths wherein one wavelength within each of the at least two wavelength sets emerges from the direct vision prism with no net angular deviation.
    Type: Grant
    Filed: May 17, 2003
    Date of Patent: August 30, 2005
    Assignee: Solid State Scientific Corporation
    Inventors: Jonathan M. Mooney, William S. Ewing, Richard J. Nelson
  • Polyol-modified polyanhydride curing agent for polyepoxide powder coatings
    Patent number: 5055524
    Abstract: There is disclosed herein an improved thermosetting powder coating composition comprising an epoxy resin and a curing agent, the improvement comprising the curing agent which is a polyol-modified polymeric polyanhydride containing anhydride linkages in the polymeric backbone.
    Type: Grant
    Filed: July 16, 1987
    Date of Patent: October 8, 1991
    Assignee: PPG Industries, Inc.
    Inventors: Paul H. Pettit, Jr., Debra L. Singer, William S. Ewing
  • Beta-hydroxyalkylamide cured acid polymer/polyepoxide powder coating
    Patent number: 5013791
    Abstract: The thermosetting powder coating composition which has good stability and good physical properties, such as appearance, flexibility, hardness, solvent resistance and corrosion resistance, is disclosed. The composition comprises a co-reactable particulate mixture of a carboxylic acid group-containing polymer, a polyepoxide, and a beta-hydroxylalkylamide.
    Type: Grant
    Filed: August 22, 1989
    Date of Patent: May 7, 1991
    Assignee: PPG Industries, Inc.
    Inventors: Paul R. Kerr, Paul H. Pettit, Jr., William S. Ewing
  • Powder coating curing system containing a beta-hydroxyalkylamide
    Patent number: 4889890
    Abstract: The thermosetting powder coating composition which has good stability and good physical properties, such as appearance, flexibility, hardness, solvent resistance and corrosion resistance, is disclosed. The composition comprises a co-reactable particulate mixture of a carboxylic acid group-containing polymer, a polyepoxide, and a beta-hydroxylalkylamide.
    Type: Grant
    Filed: December 30, 1987
    Date of Patent: December 26, 1989
    Assignee: PPG Industries, Inc.
    Inventors: Paul R. Kerr, Paul H. Pettit, Jr., William S. Ewing