Patents by Inventor Marie K. Razulis

Marie K. Razulis 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).

  • Method for detecting water pollutants
    Patent number: 4125376
    Abstract: An improved method for identification and qualitative determination of potentially harmful pollutants in water through the use of a novel sampling test tube apparatus which consists essentially of a test tube containing a foam cube which has been impregnated with a detection chemical solution selected to react colorimetrically with specific pollutants to be detected.
    Type: Grant
    Filed: April 22, 1977
    Date of Patent: November 14, 1978
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Marie K. Razulis