Patents by Inventor Joseph C. Dirksen

Joseph C. Dirksen 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).

  • Antimicrobial lubricant compositions including a fatty acid and a quaternary
    Patent number: 5244589
    Abstract: Stable concentrated liquid and solid antimicrobial lubricating compositions can be formulated which include (-) 5 to 40 wt % of a C.sub.6-24 fatty acid, (-) 10 to 40 wt % of a quaternary ammonium salt, (-) an amount of an alkaline source sufficient to increase the pH of the composition to at least 8, and optionally (-) about 0.1 to 10 wt % of an amine. The balance of the liquid form of the composition constitutes water. The lubricating compositions are particularly useful on the load bearing surfaces of conveyor belts used in food preparation where a combination of effective lubricity and efficacious antimicrobial activity are necessary.
    Type: Grant
    Filed: January 16, 1991
    Date of Patent: September 14, 1993
    Assignee: Ecolab Inc.
    Inventors: Chung-Tsing Liu, Joseph C. Dirksen