Patents by Inventor Ian W. Harper

Ian W. Harper 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).

  • Chemical compositions and use as fuel additives
    Patent number: 5045088
    Abstract: The use as an additive to improve the low temperature properties of distillate fuels having a cloud point (wax appearance temperature) above 0.degree. C. and containing more than 5 wt. % wax at 10.degree. C. below the cloud point (wax appearance temperature) of a mixture of a comb polymer together with a poly-alkyl ester, ether, ester/ether of a polyhydroxy compound.
    Type: Grant
    Filed: August 25, 1989
    Date of Patent: September 3, 1991
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Iain More, Ian W. Harper, Wayne M. Camarco