Patents by Inventor Emile Najib Habiby

Emile Najib Habiby 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).

  • Method of rerefining oil by distillation and extraction
    Patent number: 4021333
    Abstract: Used oil is rerefined by distilling it to remove a volatile forecut followed by a fraction of lubricating viscosity; the latter is then extracted with an immiscible liquid extractant to remove impurities. As optional preliminary steps, the oil may be diluted with a volatile diluent and insoluble impurities removed therefrom, and heated with an aqueous solution of a strongly alkaline material to concentrate metallic constituents (such as metal-containing additives) in a solid sludge.
    Type: Grant
    Filed: August 27, 1975
    Date of Patent: May 3, 1977
    Assignee: The Lubrizol Corporation
    Inventors: Emile Najib Habiby, Richard William Jahnke
  • Novel sulfur-containing compositions
    Patent number: 3953347
    Abstract: Compositions suitable as replacements for sulfurized sperm oil as extreme pressure additives in lubricants are obtained by sulfurizing a mixture of at least one fatty acid ester (preferably an oil such as soybean oil), at least one C.sub.8 -.sub.36 aliphatic olefin (preferably an .alpha.-olefin), and, optionally, at least one fatty acid (preferably unsaturated).
    Type: Grant
    Filed: April 3, 1972
    Date of Patent: April 27, 1976
    Assignee: The Lubrizol Corporation
    Inventor: Emile Najib Habiby