Patents by Inventor Sterling R. Greni

Sterling R. Greni 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).

  • Field detection of 2,4,6-trinitrotoluene in water by ion-exchange resins
    Patent number: 4496520
    Abstract: A method and a device for the detection of trinitrotoluene (TNT) in efflu water from the purification apparatus of ammunition plants is described. The tube detector utilizes a basic oxide section to convert the TNT to its Meisenheimer anions, followed by an alkyl quaternary ammonium chloride ion-exchange resin which collects the colored anions. The length of the resultant stain is proportional to the concentration of TNT in the water.
    Type: Grant
    Filed: May 20, 1982
    Date of Patent: January 29, 1985
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Carl A. Heller, Eric D. Erickson, Sterling R. Greni