Patents by Inventor Helmut Uhlmann

Helmut Uhlmann 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 producing an aqueous stable chlorine dioxide solution
    Patent number: 9630841
    Abstract: The invention relates to a method for producing an ultrapure, aqueous, long-term- and storage-stable, and thus transportable chlorine dioxide solution, comprising the steps of providing chlorite, providing peroxodisulfate, and combining chlorite and peroxodisulfate in an aqueous system and in a molar ratio of peroxodisulfate to chlorite [S2O82?]/[ClO2?] of greater than 1, forming the aqueous chlorine dioxide solution, wherein no additional buffer is added to produce the aqueous chlorine dioxide solution. The invention further relates to a corresponding chlorine dioxide solution, to the use of said chlorine dioxide solution, and to a device for producing the chlorine dioxide solution.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: April 25, 2017
    Assignee: A.P.F. AQUA SYSTEM AG
    Inventor: Helmut Uhlmann
  • METHOD FOR PRODUCING AN AQUEOUS STABLE CHLORINE DIOXIDE SOLUTION
    Publication number: 20130287722
    Abstract: The invention relates to a method for producing an ultrapure, aqueous, long-term- and storage-stable, and thus transportable, chlorine dioxide solution, comprising the steps of: providing chlorite, providing peroxodisulfate, and combining chlorite and peroxodisulfate in an aqueous system and in a molar ratio of peroxodisulfate to chlorite [S2O82?]/[ClO2?] of greater than 1, forming the aqueous chlorine dioxide solution, wherein no additional buffer is added to produce the aqueous chlorine dioxide solution. The invention further relates to a corresponding chlorine dioxide solution, to the use of said chlorine dioxide solution, and to a device for producing the chlorine dioxide solution.
    Type: Application
    Filed: December 22, 2011
    Publication date: October 31, 2013
    Applicant: A.P.F. AQUA SYSTEM AG
    Inventor: Helmut Uhlmann
  • Superconducting magnet assembly and method of making
    Patent number: 4178677
    Abstract: A method for impregnating a superconducting magnet winding in which an annular cavity, which serves as a manifold for an impregnating medium, is left free at each end face of the winding confined by a coil form so that no molds are required, and the cost for finishing operations is minimal.
    Type: Grant
    Filed: February 23, 1978
    Date of Patent: December 18, 1979
    Assignee: Siemens Aktiengesellschaft
    Inventors: Hanns-Jorg Weisse, Wilhelm Jager, Helmut Uhlmann