Patents by Inventor Tuncel Ibrahim

Tuncel Ibrahim 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).

  • Oil additives and compositions
    Patent number: 6638325
    Abstract: Compositions comprising (a) an ethylene-mixed unsaturated ester copolymer or (b) two or more ethylene-unsaturated ester copolymers differing, for example, in their ester chains improve the low temperature properties of fuel oils.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: October 28, 2003
    Assignee: Infineum International Ltd.
    Inventors: Ramah Jessica Brod, Brian William Davies, Tuncel Ibrahim
  • Overbased metal detergents
    Patent number: 6569821
    Abstract: An overbased metal detergent having friction-modifying properties comprises colloidal inorganic base particles stably dispersed in an oil of lubricating viscosity. The colloidal particles constitute from 15 to 40 mass % of the detergent, and a stabilizing system constitutes from 20 to 45 mass % thereof, the balance being the oil of lubricating viscosity. The stabilizing system is the mixture obtained by combining an oil-soluble detergent component and from 25 to 75 mass % of an aliphatic amide having from 10 to 30 carbon atoms.
    Type: Grant
    Filed: January 3, 2000
    Date of Patent: May 27, 2003
    Assignee: Infineum USA L.P.
    Inventors: Tuncel Ibrahim, John A Cleverley, Phillip Skinner, Jane Rachel Galsworthy, Christopher John Adams, Rudi ter Haar
  • Oil additives compositions and polymers for use therein
    Patent number: 6306186
    Abstract: Compositions comprising an ethylene/vinyl acetate or propionate/vinyl branched carboxylate terpolymer improve the low temperature properties of fuel oils.
    Type: Grant
    Filed: July 14, 1997
    Date of Patent: October 23, 2001
    Assignee: Exxon Chemical Patents Inc
    Inventors: Brian William Davies, Ramah Jessica Brod, Jan Bock, Tuncel Ibrahim
  • Oil additives and compositions
    Patent number: 6248141
    Abstract: Compositions comprising copolymers of ethylene and an ester of an unsaturated alcohol and a carboxylic acid having at least 3 carbon atoms improve the low temperature properties of fuel oils.
    Type: Grant
    Filed: June 12, 1997
    Date of Patent: June 19, 2001
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Brian William Davies, Tuncel Ibrahim, Dhanesh Gordon Goberdhan
  • Oil additives, compositions and polymers for use therein
    Patent number: 6143044
    Abstract: Compositions comprising an ethylene/vinyl acetate or propionate/vinyl linear carboxylate terpolymer improve the low temperature properties of oils having wax contents of at least 3% wt.
    Type: Grant
    Filed: July 1, 1997
    Date of Patent: November 7, 2000
    Assignee: Exxon Chemical Patents Inc
    Inventors: Brian William Davies, Ramah Jessica Brod, Jan Bock, Tuncel Ibrahim
  • Oil additives and compositions
    Patent number: 5554200
    Abstract: Compositions comprising two or more ethylene-unsaturated ester copolymers differing in their ester proportions improve the low temperature properties of fuel oils.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: September 10, 1996
    Assignee: Exxon Chemical Patents Inc
    Inventors: Ramah J. Brod, Brian W. Davies, Tuncel Ibrahim
  • Oil additives and compositions
    Patent number: 5494967
    Abstract: Compositions comprising two or more re-esterified ethylene-unsaturated ester copolymers, for example ethylene-vinyl acetate copolymers, improve the low temperature properties of fuel oils.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: February 27, 1996
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Ramah J. Brod, Brian W. Davies, Tuncel Ibrahim
  • Polymeric additives
    Patent number: 5456730
    Abstract: There are disclosed middle distillate fuel oil compositions containing an additive being a copolymer of Mn 200-50,000 having a polymethylene backbone which may be O or N substituted and having nitrate, peroxide, nitrite or nitrosocarbonate side chains.
    Type: Grant
    Filed: August 27, 1993
    Date of Patent: October 10, 1995
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Richard J. Hart, Tuncel Ibrahim, Graham Jackson
  • Alicyclic compounds and their contraceptive use
    Patent number: 4985462
    Abstract: Compounds of the general formula ##STR1## wherein n is from 1 to 6 and each of R.sup.1 and R.sup.2 represents an alkyl group of 1 to 4 carbon atoms and their acid addition salts are useful for thickening mucus, especially gastro-intestinal mucus as an anti-ulceration treatment or cervical mucus in contraception.
    Type: Grant
    Filed: December 4, 1989
    Date of Patent: January 15, 1991
    Assignee: National Research Development Corporation
    Inventors: James A. Baker, Stuart L. James, Tuncel Ibrahim, Christopher Marriott