Patents by Inventor Lydia Kimble Johnson

Lydia Kimble Johnson 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).

  • Reagent for detection and assessment of total chlorine in aqueous solution
    Patent number: 8993337
    Abstract: Provided is a heat dried reagent composition that is dry, methods of making it, and methods of using it. The heat dried reagent composition can be characterized by one or more of: stability to the heat drying conditions; storage stability of the heat dried reagent composition; fast rehydration time; rapid assay kinetics; and assay precision. The reagent composition is useful for detecting and/or assessing total chlorine in an aqueous sample, such as pool water.
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: March 31, 2015
    Inventors: Vladimir Evtodienko, Lydia Kimble Johnson
  • Reagent for detection and assessment of free chlorine in aqueous solution
    Patent number: 8987000
    Abstract: Provided is a heat dried reagent composition that is dry, methods of making it, and methods of using it. The heat dried reagent composition can be characterized by one or more of stability to the heat drying conditions; storage stability of the heat dried reagent composition; fast rehydration time; rapid assay kinetics; and assay precision. The reagent composition is useful detecting and/or assessing free chlorine in an aqueous sample, such as pool water.
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: March 24, 2015
    Assignee: LaMotte Chemical Products Company
    Inventors: Vladimir Evtodienko, Lydia Kimble Johnson