Patents by Inventor Dennis R. Murphy

Dennis R. Murphy 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).

  • Fabric softener compositions
    Patent number: 10011807
    Abstract: A fabric conditioning active composition comprising an esterquat mixture of quaternized mono-, di-, and tri-esters of alkanolamine in which the tri-esterquat content of the quaternized esterquat mixture is greater than 25% by weight of the esterquat mixture, and the combined di-esterquat and tri-esterquat content in the esterquat mixture is greater than 78% by weight of the esterquat mixture. Additionally, the free fatty acid content of the composition is greater than 1% by weight based on the weight of the esterquat mixture. The fabric conditioning active composition provides high viscosity when dispersed into water at low concentrations of 0.5% to 12%, without the need for additional polymeric thickeners or other thickening additives.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: July 3, 2018
    Assignee: Stepan Company
    Inventors: Dennis R. Murphy, Leonard F. Zaporowski, Christopher A. Gariepy, Carmen Matache, Diana J. Dardugno
  • Fabric Softener Compositions
    Publication number: 20160281033
    Abstract: A fabric conditioning active composition comprising an esterquat mixture of quaternized mono-, di-, and tri-esters of alkanolamine in which the tri-esterquat content of the quaternized esterquat mixture is greater than 25% by weight of the esterquat mixture, and the combined di-esterquat and tri-esterquat content in the esterquat mixture is greater than 78% by weight of the esterquat mixture. Additionally, the free fatty acid content of the composition is greater than 1% by weight based on the weight of the esterquat mixture. The fabric conditioning active composition provides high viscosity when dispersed into water at low concentrations of 0.5% to 12%, without the need for additional polymeric thickeners or other thickening additives.
    Type: Application
    Filed: June 3, 2016
    Publication date: September 29, 2016
    Inventors: Dennis R. Murphy, Leonard F. Zaporowski, Christopher A. Gariepy, Carmen Matache, Diana J. Dardugno