Patents by Inventor Robert Dale Hei

Robert Dale Hei 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).

  • mono-or diester dicarboxylate compositions
    Patent number: 7060301
    Abstract: The present invention relates to in situ compositions of mono- or diester dicarboxylates, methods employing these in situ compositions, and methods of making these in situ compositions. More particularly, the invention relates to mono- or diester dicarboxylate antimicrobial compositions that can reduce the population of microbes on various surfaces such as facilities, containers, or equipment found in food, beverage, or pharmaceutical processing, or in food, beverage, or pharmaceutical industries, at temperatures between about ?70° C. to about 100° C.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: June 13, 2006
    Assignee: Ecolab Inc.
    Inventors: Guang-Jong Jason Wei, Larry A. Grab, Robert Dale Hei, Teresa C. Podtburg
  • High concentration monoester peroxy dicarboxylic acid compositions, use solutions, and methods employing them
    Patent number: 6627593
    Abstract: The present invention relates to high concentration compositions of a monoester peroxy dicarboxylic acid, methods employing these high concentration compositions, and methods of making these compositions.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: September 30, 2003
    Assignee: Ecolab Inc.
    Inventors: Robert Dale Hei, Thomas Robert Mohs
  • High concentration monoester peroxy dicarboxylic acid compositions, use solutions, and methods employing them
    Publication number: 20030087786
    Abstract: The present invention relates to high concentration compositions of a monoester peroxy dicarboxylic acid, methods employing these high concentration compositions, and methods of making these compositions.
    Type: Application
    Filed: July 13, 2001
    Publication date: May 8, 2003
    Inventors: Robert Dale Hei, Thomas Robert Mohs
  • In situ mono-or diester dicarboxylate compositions
    Publication number: 20030021853
    Abstract: The present invention relates to in situ compositions of mono- or diester dicarboxylates, methods employing these in situ compositions, and methods of making these in situ compositions. More particularly, the invention relates to mono- or diester dicarboxylate antimicrobial compositions that can reduce the population of microbes on various surfaces such as facilities, containers, or equipment found in food, beverage, or pharmaceutical processing, or in food, beverage, or pharmaceutical industries, at temperatures between about −70° C. to about 100° C.
    Type: Application
    Filed: July 13, 2001
    Publication date: January 30, 2003
    Inventors: Guang-Jong Jason Wei, Larry A. Grab, Robert Dale Hei, Teresa C. Podtburg