Patents by Inventor Ronald I. Graham

Ronald I. Graham 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).

  • Process for manufacturing lube base stocks
    Patent number: 4259170
    Abstract: This invention provides an improved method for manufacturing a slate of lubricant base stocks from a paraffin base or a mixed base crude. In one embodiment of this invention, the bright stock raffinate is catalytically dewaxed with a catalyst comprising ZSM-5, for example, and the neutral oil raffinates are solvent dewaxed. The combined use of solvent and catalytic dewaxing as described herein provides a highly efficient method of manufacture without loss of product quality.
    Type: Grant
    Filed: September 14, 1979
    Date of Patent: March 31, 1981
    Assignee: Mobil Oil Corporation
    Inventors: Ronald I. Graham, Edwin A. Hicks
  • Twin tower distillation of crude oil
    Patent number: 4239618
    Abstract: A sequential twin tower fractionation arrangement for separating crude oil is described which is particularly concerned with lowering fractionation heat requirements in conjunction with reducing steam utilization in the combination operation.
    Type: Grant
    Filed: May 10, 1979
    Date of Patent: December 16, 1980
    Assignee: Mobil Oil Corporation
    Inventors: Alfred M. Peiser, Ronald I. Graham, Joseph R. McClernon