Patents by Inventor Anita R. Mokadam

Anita R. Mokadam 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).

  • Surfactant additive for oil field acidizing
    Patent number: 5797456
    Abstract: Subterranean oil-bearing formations are treated with aqueous acid solutions which include an effective amount of an ester or salts of sulfonated fatty acids, which exhibits both antisludge and demulsification properties.
    Type: Grant
    Filed: August 8, 1995
    Date of Patent: August 25, 1998
    Assignee: Nalco/Exxon Energy Chemicals,L.P.
    Inventor: Anita R. Mokadam
  • Method for amide preparation
    Patent number: 5587498
    Abstract: A method for amidation of carboxylic acids using a supported transition metal catalyst. The amides prepared by this inventive method are available in high-yield and excellent purity, without catalytic residue.
    Type: Grant
    Filed: September 28, 1994
    Date of Patent: December 24, 1996
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: James A. Krogh, Anita R. Mokadam, B. Brian Smith
  • Surfactant additive for oilfield acidizing
    Patent number: 5543387
    Abstract: Subterranean oil-bearing formations are treated with aqueous acid solutions which include an effective amount of an alkoxylated alkyl substituted phenol sulfonate which exhibits both antisludge and demulsification properties.
    Type: Grant
    Filed: February 13, 1995
    Date of Patent: August 6, 1996
    Assignees: Nalco/Exxon Energy Chemicals, L.P, Exxon Production Research Co.
    Inventors: Anita R. Mokadam, Charles E. Strubelt, Dennis A. Williams, Kenneth M. Webber
  • Guerbet alkyl ether mono amines
    Patent number: 5264006
    Abstract: Distillate fuel compositions containing an alkyl ether mono amine having the formulaRO[C.sub.4 H.sub.8 O].sub.(9-18) CH.sub.2 CH.sub.2 CH.sub.2 NH.sub.2whereR is a highly branched alkyl group derived from a Guerbet alcohol containing between 12 and 40 carbon atomsare effective in reducing the formation of intake valve deposits in internal combustion engines.
    Type: Grant
    Filed: December 20, 1991
    Date of Patent: November 23, 1993
    Assignee: Exxon Research and Engineering Co.
    Inventors: Alan M. Schilowitz, James A. Krogh, Anita R. Mokadam, J. Michael Clumpner, Paul J. Berlowitz
  • Guerbet alkyl ether mono amines
    Patent number: 5094667
    Abstract: Distillate fuel compositions containing an alkyl ether mono amine derived from a Guerbet alcohol are effective in reducing the formation of intake valve deposits in internal combustion engines. A preferred alkyl ether mono amine is derived from a highly branched butoxylated Guerbet alcohol containing 20 carbon atoms and having the formulaRO[C.sub.4 H.sub.8 O].sub.(4-8) CH.sub.2 CH.sub.2 CH.sub.2 NH.sub.2where R is a highly branched alkyl group having 20 carbon atoms that is derived from a Guerbet condensation reaction.
    Type: Grant
    Filed: March 20, 1990
    Date of Patent: March 10, 1992
    Assignee: Exxon Research and Engineering Company
    Inventors: Alan M. Schilowitz, James A. Krogh, Anita R. Mokadam, J. Michael Clumpner, Paul J. Berlowitz