Patents by Inventor Jeffrey Earl Telschow

Jeffrey Earl Telschow 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).

  • Removal of residual sulfur dioxide from dimethyl sulfate
    Patent number: 7777065
    Abstract: The present invention relates to a method of removing SO2 contaminants from dimethyl sulfate (DMS) by treatment with an oxidizing agent, and to a process for the preparation of odor free fatty acid trialkanolamine esters quaternized with DMS which is substantially free of SO2 contaminants.
    Type: Grant
    Filed: March 8, 2006
    Date of Patent: August 17, 2010
    Assignee: Akzo Nobel N.V.
    Inventors: William Francis Joyce, Jeffrey Earl Telschow
  • Removal of Residual Sulfur Dioxide From Dimethyl Sulfate
    Publication number: 20080207940
    Abstract: The present invention relates to a method of removing SO2 contaminants from dimethyl sulfate (DMS) by treatment with an oxidizing agent, and to a process for the preparation of odour free fatty acid trialkanolamine esters quaternized with DMS which is substantially free of SO2 contaminants.
    Type: Application
    Filed: March 8, 2006
    Publication date: August 28, 2008
    Applicant: AKZO Nobel N.V.
    Inventors: William Francis Joyce, Jeffrey Earl Telschow
  • Minimization of volatile organic sulphur byproducts in dimethyl sulfate quaternization of amines made with hypophorous acid
    Patent number: 7326814
    Abstract: The present invention relates to a process for the minimization of volatile organic sulphur byproducts in dimethyl sulfate quaternization of amines made with hypophosphorous acid, which leads to the formation of an odor stable product.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: February 5, 2008
    Assignee: Akzo Nobel N.V.
    Inventors: Elliot Band, Maurice Dery, William Joyce, Jeffrey Earl Telschow, Biing Ming Su, Michael Engel, John Nowak, Claude Peterson, Harold Providence, Phuong-Nga Trinh, Sandra Urquhart