Patents by Inventor Roy E. Starn

Roy E. Starn 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).

  • Aliphatic diamines for distillate fuels stabilization
    Patent number: 5370712
    Abstract: This invention relates to novel secondary diamine compounds which can be represented by the general formula:R.sup.1 (R.sup.2)HCHN-A-NHCH(R.sup.2)R.sup.1wherein R.sup.1 and R.sup.2 are the same or different substituent comprising C.sub.n H.sub.2n+1 wherein n=1 to 6, and A is a branched-chain divalent saturated aliphatic radical containing 4 to 7 carbon atoms, particularly 1,5-diisopropyl-amino-2-methylpentane. It relates also to compositions containing said compounds which are useful for stabilizing hydrocarbon distillate fuel oils, hydrocarbon distillate fuel oils stabilized therewith, and to processes for stabilizing such oils.
    Type: Grant
    Filed: August 14, 1992
    Date of Patent: December 6, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Roy E. Starn