Patents by Inventor Thomas B. Ryerson

Thomas B. Ryerson 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).

  • Photolysis system for fast-response NO2 measurements and method therefor
    Patent number: 6346419
    Abstract: An efficient, lightweight, and relatively inexpensive photolysis system based on a short-arc Hg arc lamp provides a simple and accurate method for measurement of ambient NO2. High time resolution is achieved by minimizing inlet and photolysis cell residence times and matching NO and NO2 sample paths, and data reduction is greatly simplified relative to conventional photolysis designs.
    Type: Grant
    Filed: June 26, 2000
    Date of Patent: February 12, 2002
    Assignee: The United States of America as represented by the Department of Commerce
    Inventors: Thomas B. Ryerson, Eric J. Williams