Patents by Inventor M. Karin JOHANSSON

M. Karin JOHANSSON 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).

  • WASTEWATER TANK STORAGE TREATMENT
    Publication number: 20110192428
    Abstract: A method and composition for treating a wastewater storage tank during non-use. The method comprises adding a storage deodorant composition to a wastewater storage tank, the storage deodorant composition comprising an odor control agent, a detergent, a surface active agent, and a lubricant; and leaving the storage composition in the wastewater storage tank for a period of 1 day to 12 months.
    Type: Application
    Filed: April 20, 2011
    Publication date: August 11, 2011
    Applicant: Thetford Corporation
    Inventors: Mary R. BURROWS, M. Karin JOHANSSON
  • WASTEWATER TANK STORAGE TREATMENT
    Publication number: 20090175758
    Abstract: A method and composition for treating a wastewater storage tank during non-use. The method comprises adding a storage deodorant composition to a wastewater storage tank, the storage deodorant composition comprising an odor control agent, a detergent, a surface active agent, and a lubricant; and leaving the storage composition in the wastewater storage tank for a period of 1 day to 12 months.
    Type: Application
    Filed: December 10, 2008
    Publication date: July 9, 2009
    Applicant: THETFORD CORPORATION
    Inventors: Mary R. BURROWS, M. Karin JOHANSSON