Patents by Inventor Kurt F. Wollenberg

Kurt F. Wollenberg 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).

  • Patent number: 11155765
    Abstract: A composition obtained by reacting an O,O?-dialkyldithiophosphoric acid with a hydroxyalkyl acrylate or a hydroxyalkyl methacrylate, and reacting the product thereof with a dialkylphosphite provides good antiwear protection.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: October 26, 2021
    Assignee: The Lubrizol Corporation
    Inventors: William D. Abraham, Mahmud M. Hussain, Kurt F. Wollenberg
  • Publication number: 20210040412
    Abstract: A composition obtained by reacting an O,O?-dialkyldithiophosphoric acid with a hydroxyalkyl acrylate or a hydroxyalkyl methacrylate, and reacting the product thereof with a dialkylphosphite provides good antiwear protection.
    Type: Application
    Filed: October 22, 2020
    Publication date: February 11, 2021
    Applicant: The Lubrizol Corporation
    Inventors: William D. Abraham, Mahmud M. Hussain, Kurt F. Wollenberg
  • Patent number: 10829713
    Abstract: A composition obtained by reacting an O,O?-dialkyldithiophosphoric acid with a hydroxyalkyl acrylate or a hydroxyalkyl methacrylate, and reacting the product thereof with a dialkylphosphite provides good antiwear protection.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: November 10, 2020
    Inventors: William D. Abraham, Mahmud M. Hussain, Kurt F. Wollenberg
  • Patent number: 10793802
    Abstract: A lubricant composition of an oil of lubricating viscosity and a phosphite ester reaction product of a monomeric phosphorous acid or an ester thereof with a first alkylene diol having two hydroxy groups in a 1,4 or 1,5 or 1,6 relationship and a second, alkyl-substituted, diol being a substituted 1,3-propylene diol, exhibits good wear and frictional performance.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: October 6, 2020
    Assignee: The Lubrizol Corporation
    Inventors: William D. Abraham, Nga H. Nguyen, Paul E. Adams, Kurt F. Wollenberg
  • Patent number: 10611981
    Abstract: A lubricant composition of an oil of lubricating viscosity and a phosphite ester reaction product of a monomeric phosphorous acid or an ester thereof with a first alkylene diol having two hydroxy groups in a 1,4 or 1,5 or 1,6 relationship and a second, alkyl-substituted, diol being a substituted 1,3-propylene diol, exhibits good wear and frictional performance.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: April 7, 2020
    Assignee: The Lubrizol Corporation
    Inventors: William D. Abraham, Nga H. Nguyen, Paul E. Adams, Kurt F. Wollenberg
  • Publication number: 20190284495
    Abstract: A composition obtained by reacting an O,O?-dialkyldithiophosphoric acid with a hydroxyalkyl acrylate or a hydroxyalkyl methacrylate, and reacting the product thereof with a dialkylphosphite provides good antiwear protection.
    Type: Application
    Filed: May 17, 2017
    Publication date: September 19, 2019
    Inventors: William D. Abraham, Mahmud M. Hussain, Kurt F. Wollenberg
  • Publication number: 20180282654
    Abstract: A lubricant composition of an oil of lubricating viscosity and a phosphite ester reaction product of a monomeric phosphorous acid or an ester thereof with a first alkylene diol having two hydroxy groups in a 1,4 or 1,5 or 1,6 relationship and a second, alkyl-substituted, diol being a substituted 1,3-propylene diol, exhibits good wear and frictional performance.
    Type: Application
    Filed: November 5, 2015
    Publication date: October 4, 2018
    Inventors: William D. Abraham, Nga H. Nguyen, Paul E. Adams, Kurt F. Wollenberg
  • Publication number: 20170335224
    Abstract: A lubricant composition of an oil of lubricating viscosity and a phosphite ester reaction product of a monomeric phosphorous acid or an ester thereof with a first alkylene diol having two hydroxy groups in a 1,4 or 1,5 or 1,6 relationship and a second, alkyl-substituted, diol being a substituted 1,3-propylene diol, exhibits good wear and frictional performance.
    Type: Application
    Filed: November 11, 2015
    Publication date: November 23, 2017
    Inventors: William D. Abraham, Nga H. Nguyen, Paul E. Adams, Kurt F. Wollenberg
  • Publication number: 20120317874
    Abstract: The present invention provides a nitrogen-free fuel detergent additive, fuel additive compositions containing the same, and fuel compositions containing the same, for use in internal combustion engines, where the additive is the reaction product of (i) hydrocarbyl phenol, cresol or similar material and (ii) a aldehyde, in the presence of an optional catalyst, wherein the additive provides acceptable engine deposit control that is comparable and/or better than the deposit control provided by nitrogen-containing fuel additives.
    Type: Application
    Filed: June 15, 2011
    Publication date: December 20, 2012
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: Paul R. Stevenson, David J. Moreton, Jonathan S. Vilardo, Seth Crawley, James C. Ray, Kurt F. Wollenberg
  • Patent number: 5885944
    Abstract: Polyalkylene substituted carboxylic acylating agents which contain chlorine are synthesized by chlorine induced condensation of polyalkylenes and .alpha.-.beta. unsaturated carboxylic groups are treated with sulfur to reduce chlorine content of the carboxylic acylating agent.
    Type: Grant
    Filed: May 21, 1996
    Date of Patent: March 23, 1999
    Assignee: The Lubrizol Corporation
    Inventors: John K. Pudelski, Matthew R. Sivik, Kurt F. Wollenberg, Richard Yodice, Jerry L. Rutter, Jeffry G. Dietz
  • Patent number: 5830243
    Abstract: The present invention is directed to a composition made by reacting A) an aldehyde of 1 to 12 carbon atoms or a reactive equivalent thereof; and B) at least one etheramine represented by the formulaR.sup.2 ?O(CH.sub.2 CH(R)O).sub.n --R.sup.1 --NH.sub.2 !.sub.y(I)wherein each n is a number from 0 to about 50; each R is selected from the group consisting of hydrogen, hydrocarbyl groups of 1 to about 16 carbon atoms, and mixtures thereof; each R.sup.1 is selected from the group consisting of a hydrocarbylene group containing 2 to about 18 carbon atoms and a group represented by the formula ##STR1## wherein both R.sup.6 and R.sup.7 are hydrocarbylene groups of about 3 to about 10 carbon atoms and p is a number from 1 to 4; y is 1, 2, or 3; and each R.sup.2 is a hydrocarbyl group having a valence of y and containing 1 to about 50 carbon atoms when y is 1 and 1 to about 18 carbon atoms when y is 2 or 3; y is 1, 2, or 3; provided that when n is zero, y is 1.
    Type: Grant
    Filed: September 11, 1997
    Date of Patent: November 3, 1998
    Assignee: The Lubrizol Corporation
    Inventors: Thomas J. Wolak, Daniel T. Daly, Kurt F. Wollenberg, William D. Abraham, Paul E. Adams, Mitchell M. Jackson