Patents by Inventor Hans-Joachim Grege

Hans-Joachim Grege 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).

  • Method for determining the disinfecting effect of a disinfectant and a test strip suitable therefor
    Patent number: 4847197
    Abstract: A method for determining the disinfecting effect of a disinfectant, in which the disinfectant is applied to filter paper, polulated with luminescent or luminous bacteria, with a number average pore size of 6 to 8.mu. and the reduction in luminescence or luminous power is compared with that of untreated areas of the filter paper. This method provides a rapid and uncomplicated, qualitative or quantitative determination of the effectiveness of a disinfectant.
    Type: Grant
    Filed: June 2, 1988
    Date of Patent: July 11, 1989
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Klaus Bansemir, Hans-Joachim Grege