Patents by Inventor Jeff A. Barnhorst

Jeff A. Barnhorst 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 removing polysorbitols from sorbitan esters
    Patent number: 6680392
    Abstract: A process for removing polyol impurities from a sorbitan ester solution involving: (a) providing a sorbitan ester solution containing polyol impurities; (b) adding to the sorbitan ester solution a clarifying-effective amount of a silica component; (c) adsorbing the polyol impurities from the sorbitan ester solution onto the silica to form a mixture of sorbitan ester and polyol-containing silica; and (d) removing the polyol-containing silica from the sorbitan ester solution.
    Type: Grant
    Filed: October 7, 1997
    Date of Patent: January 20, 2004
    Assignee: Cognis Corporation
    Inventors: Jeff A. Barnhorst, Dean A. Oester
  • Stamping lubricants
    Patent number: 5744432
    Abstract: Water-based stamping lubricants are comprised of: (1) water; (2) a polyester that is water-soluble or readily emulsifiable made by reacting one or more dicarboxylic acids and a polyalkylene glycol; (3) one or more ethoxylated alkylalcohols; (4) the salt of a phosphate ester of an ethoxylated alkyl alcohol; (5) an alkanolamine.
    Type: Grant
    Filed: October 28, 1996
    Date of Patent: April 28, 1998
    Assignee: Henkel Corporation
    Inventors: Jeff A. Barnhorst, Roger H. Garst, Ronald H. Gordon, Eugene R. Zehler
  • Stamping lubricants
    Patent number: 5569406
    Abstract: Stamping lubricant compositions which exhibit improved lubricity and methods for reducing friction and wear utilizing said stamping lubricant compositions.
    Type: Grant
    Filed: March 15, 1995
    Date of Patent: October 29, 1996
    Assignee: Henkel Corporation
    Inventors: Jeff A. Barnhorst, Roger H. Garst, Ronald H. Gordon, Eugene R. Zehler