Patents by Inventor Djorde R. Popovic

Djorde R. Popovic 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).

  • Reader recorder for toxic gas concentration tapes
    Patent number: 4073621
    Abstract: A reader recorder which will plot a concentration versus time graph based on stain intensity of a gas sensitive tape. Simultaneously, the device will integrate the area under the curve to obtain the total dosage for the period of time covered by the graph. By means of a common drive system for the recorder and the tape drive a meaningful relationship between displacement on the tape and position on the graph is obtained yielding information on the exact time of occurrence of events of interest.
    Type: Grant
    Filed: February 25, 1976
    Date of Patent: February 14, 1978
    Assignee: MDA Scientific, Inc.
    Inventors: Rame Bull, Byron A. Denenberg, Djorde R. Popovic