Patents by Inventor Tanja Mainzer Althof

Tanja Mainzer Althof 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 and device for regulating the composition of solution(s)
    Patent number: 6972101
    Abstract: A method and device for regulating the composition of a solution(s) in the production of cellulosic mouldings. The device comprises multiple measuring devices for the measurement of non-optical properties of the solution. According to invention, by measuring the non-optical properties of the solutions and comparison of the measured value with a preset value, the composition(s) of the solution(s) can be controlled.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: December 6, 2005
    Assignee: Zimmer AG
    Inventors: Frank-Gunter Niemz, Wilhem Meyer, Tanja Mainzer-Althof
  • Method and device for producing cellulosed shaped bodies
    Patent number: 6902690
    Abstract: The invention relates to a method for producing cellulosed shaped bodies. (a) Cellulose and an aqueous aminoxide are mixed, whereby a suspension is produced. (b) A cellulose solution is produced from the suspension, whereby water evaporates. (c) A first property and a second property of the produced cellulose solution is measured and the measured value is used for correcting the composition of the solution and (d) the cellulose solution is extruded through a gap of air and into an aqueous regenerating bath where said solution is coagulated to form shaped bodies.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: June 7, 2005
    Assignee: Zimmer AG
    Inventors: Frank Gunter Niemz, Wilhelm Meyer, Tanja Mainzer Althof