Patents by Inventor Saleem Al-Ahmad

Saleem Al-Ahmad 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).

  • Polymers with pendant heterocyclic-containing groups and lubricating oil compositions containing same
    Patent number: 8377860
    Abstract: The disclosed invention relates to polymers with heterocyclic-containing groups, and to concentrates and lubricating oil compositions containing the polymers.
    Type: Grant
    Filed: August 18, 2008
    Date of Patent: February 19, 2013
    Assignee: The Lubrizol Corporation
    Inventors: Saleem Al-Ahmad, Marina Baum, Jonathan S. Vilardo, Patrick E. Mosier
  • Polymers with Pendant Heterocyclic-Containing Groups and Lubricating Oil Compositions Containing Same
    Publication number: 20100286003
    Abstract: The disclosed invention relates to polymers with heterocyclic-containing groups, and to concentrates and lubricating oil compositions containing the polymers.
    Type: Application
    Filed: August 18, 2008
    Publication date: November 11, 2010
    Applicant: The Lubrizol Corporation
    Inventor: Saleem Al-Ahmad
  • Method of lubricating an internal combustion engine and improving the efficiency of the emissions control system of the engine
    Patent number: 7772171
    Abstract: An internal combustion engine with a catalyst-containing exhaust-gas aftertreatment device is lubricated with a composition of a base oil; and a zinc salt of a mixture of phosphorus-containing compounds having hydrocarbyl groups R1 and R2 where the average total number of carbon atoms in R1 plus R2 for the mixture of phosphorus-containing compounds is at least 9.5, where 4 to 30 weight percent of such groups contain 2 to 4 carbon atoms and where in less than 8 mole percent of the phosphorus-containing molecules in the mixture of phosphorus-containing compounds each of R1 and R2 contain 2 to 4 carbon atoms.
    Type: Grant
    Filed: July 17, 2006
    Date of Patent: August 10, 2010
    Assignee: The Lubrizol Corporation
    Inventors: Saleem Al-Ahmad, Melody Wilk, Jack Kelley, John K. Pudelski, Paul E. Adams, Ewa Bardasz
  • Method of Lubricating an Internal Combustion Engine and Improving the Efficiency of the Emissions Control System of the Engine
    Publication number: 20080015129
    Abstract: An internal combustion engine with a catalyst-containing exhaust-gas aftertreatment device is lubricated with a composition of a base oil; and a zinc salt of a mixture of phosphorus-containing compounds having hydrocarbyl groups R1 and R2 where the average total number of carbon atoms in R1 plus R2 for the mixture of phosphorus-containing compounds is at least 9.5, where 4 to 30 weight percent of such groups contain 2 to 4 carbon atoms and where in less than 8 mole percent of the phosphorus-containing molecules in the mixture of phosphorus-containing compounds each of R1 and R2 contain 2 to 4 carbon atoms.
    Type: Application
    Filed: July 17, 2006
    Publication date: January 17, 2008
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: Saleem Al-Ahmad, Melody A. Wilk, Jack Kelley, John K. Pudelski, Paul E. Adams, Ewa Bardasz
  • Olefin polymerization catalyst and process and polymer, polymer derivatives, lubricants and fuels thereof
    Publication number: 20040118035
    Abstract: This invention is directed to a catalyst and an associated process for polymerizing olefins or olefin-containing compounds, to corresponding olefin polymers, to derivatives of the olefin polymers, and to lubricant and fuel compositions that include the olefin polymers or their derivatives. The polymerization catalyst is a metal complex and optional cocatalyst where the metal complex is formed from a bidentate ligand having a nitrogen coordinating group and a second coordinating group selected from oxygen, sulfur, selenium and tellurium groups and a metal compound where the metal is a transition metal, boron, aluminum, germanium or tin. Highly branched and reactive ethylene polymers are formed from the catalyst and process of the present invention. The ethylene polymers and their derivatives are useful in various applications including as performance additives in lubricants and fuels.
    Type: Application
    Filed: October 17, 2002
    Publication date: June 24, 2004
    Inventor: Saleem Al-Ahmad
  • Heterocyclic metal complexes and olefin polymerization process
    Patent number: 6355818
    Abstract: Racemic isomers of metal complexes of Groups 3, 4 or the Lanthanides, addition polymerization catalysts containing the same and olefin polymerization processes using the same comprising a boratabenzene group or divalent derivative thereof are disclosed.
    Type: Grant
    Filed: February 16, 2000
    Date of Patent: March 12, 2002
    Assignees: The Dow Chemical Company, The Regents of the University of Michigan
    Inventors: Francis J. Timmers, David D. Devore, Arthur J. Ashe, III, Saleem A. Al-Ahmad, Xinggao Fang
  • Heterocyclic metal complexes and olefin polymerization process
    Patent number: 6107421
    Abstract: Metal complexes, addition polymerization catalysts containing the same and olefin polymerization processes using the same comprising a boratabenzene group or divalent derivative thereof are disclosed.
    Type: Grant
    Filed: August 10, 1998
    Date of Patent: August 22, 2000
    Assignees: The Dow Chemical Company, The Regents of the University of Michigan
    Inventors: Francis J. Timmers, Arthur J. Ashe, III, David D. Devore, Saleem A. Al-Ahmad, Xinggao Fang