Patents by Inventor Donald S. Allan

Donald S. Allan 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).

  • Temperature-sensitive detector
    Patent number: 4041771
    Abstract: An improved versatile device which is useful in detecting leaks of cyrogenic material from transporting, storage and processing equipment and for indicating the location of the leaks.
    Type: Grant
    Filed: May 9, 1975
    Date of Patent: August 16, 1977
    Assignee: Arthur D. Little, Inc.
    Inventors: Donald S. Allan, Daniel Schiff