Patents by Inventor John A. Rand

John A. Rand 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).

  • Catalytic preparation of carbonamides
    Patent number: 4655972
    Abstract: Carbonamides are prepared from carboxylic acids and ammonia in the presence of a catalytic amount of a hydrated oxide.Preferably a hydrated titanium-, zirconium- or tin oxide in an amount between 0.05 to 10% by weight is used. The hydrated oxide contains at least 4% of water.
    Type: Grant
    Filed: July 3, 1984
    Date of Patent: April 7, 1987
    Assignee: Internationale Octrooi Maatschappij "Octropa" B.V.
    Inventors: Teunis Eikelboom, John A. Rand, Pieter M. van Dijk
  • Dewaxing with a polymerized polyol ester dewaxing aid
    Patent number: 4105539
    Abstract: A process for de-waxing oil comprises dissolving a polymerized polyol ester blend in a waxy oil, optionally with a solvent or diluent and cooling to crystallize out the wax using acids in the C.sub.8 to C.sub.24 range to form the esters.
    Type: Grant
    Filed: November 17, 1976
    Date of Patent: August 8, 1978
    Assignee: Internationale Octrooi Maatschappij "Octropa" B.V.
    Inventors: Hans Borst, Reginald D. O. Evans, John A. Rand