Patents by Inventor Mitchell B. Ferguson

Mitchell B. Ferguson 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).

  • Process for preparing fatty acid esters and amides of sulfonic acid salts
    Patent number: 5300665
    Abstract: Fatty acid esters of hydroxyalkylsulfonates and fatty acid amides of aminoalkylsulfonates are prepared by heating an excess of the fatty acids with the sulfonate until the water of condensation is removed. The excess fatty acid is removed by distillation and the isolated fatty acid ester or amide product is directly and rapidly cooled to minimize decomposition and color degradation.
    Type: Grant
    Filed: September 16, 1992
    Date of Patent: April 5, 1994
    Assignee: Rhone-Poulenc Surfactants and Specialties, L.P.
    Inventors: David J. Tracy, Mitchell B. Ferguson, Gordon Wall