Patents by Inventor I. Lee Markovich

I. Lee Markovich 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).

  • Potassium fluoride stabilized ammonium nitrate and method of producing potassium fluoride stabilized ammonium nitrate
    Patent number: 5098683
    Abstract: A phase stabilized ammonium nitrate mixed crystal structure is produced by the addition of potassium fluoride. Thus the undesirable abrupt expansion and contraction of ammonium nitrate in the temperature range of use in rocket motor propellants and explosives (-55.degree. C. to .lambda..degree. C.) is eliminated. The mixture is made by the addition of between about 3% to 5% and preferably about 3.5% by weight potassium fluoride to the ammonium nitrate by a nonhazardous aqueous method.
    Type: Grant
    Filed: March 6, 1991
    Date of Patent: March 24, 1992
    Assignee: Olin Corporation
    Inventors: Ashok K. Mehrotra, I. Lee Markovich