Patents by Inventor René Rietmann

René Rietmann 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 whether reconstitution of a solution in a container is completed
    Patent number: 10209211
    Abstract: A method for determining whether reconstitution of a solution in a container is completed comprises the steps of: selecting a predetermined amount of a solid substance and a predetermined amount of a liquid solvent from which the reconstituted solution is to be prepared, preparing a solution by solving the predetermined amount of the solid substance in the predetermined amount of the liquid solvent, measuring the impedance (Z) or the resistance (R) of the solution, determining whether the change of the measured impedance (Z) or the resistance (R) within a measuring time interval of a predetermined duration is below a defined threshold, and determining that reconstitution of the solution is completed when the change of the measured impedance (Z) is below the defined threshold.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: February 19, 2019
    Assignee: Hoffman-La Roche Inc.
    Inventors: Tobias Werk, Jörg Lümkemann, René Rietmann, Roger Steiner, Hanns-Christian Mahler
  • Method for Determining Whether Reconstitution of a Solution in a Container is Completed
    Publication number: 20170212068
    Abstract: A method for determining whether reconstitution of a solution in a container is completed comprises the steps of: selecting a predetermined amount of a solid substance and a predetermined amount of a liquid solvent from which the reconstituted solution is to be prepared, preparing a solution by solving the predetermined amount of the solid substance in the predetermined amount of the liquid solvent, measuring the impedance (Z) or the resistance (R) of the solution, determining whether the change of the measured impedance (Z) or the resistance (R) within a measuring time interval of a predetermined duration is below a defined threshold, and determining that reconstitution of the solution is completed when the change of the measured impedance (Z) is below the defined threshold.
    Type: Application
    Filed: June 26, 2015
    Publication date: July 27, 2017
    Inventors: Tobias Werk, Jörg Lümkemann, René Rietmann, Roger Steiner, Hanns-Christian Mahler