Patents by Inventor Holger BREUER

Holger BREUER 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).

  • MEASURING SYSTEM, SLIDE VALVE COMPRISING SUCH A MEASURING SYSTEM, AND METHOD FOR MEASURING THE POSITION OF A SLIDE VALVE
    Publication number: 20220082179
    Abstract: The invention relates to a measuring system for industrial valves, in particular for plants in the fields of chemistry, petrochemistry, iron or steel production, glass production, or energy and environmental technology, for measuring the position of a movable component of the valve, wherein a measuring device for transmitting and receiving radar signals is connected to a probe for guiding the radar signals, wherein a reflective element is guided in the probe and can be coupled to the movable component in such a way that a position of the component corresponds to a position of the reflective element in the probe.
    Type: Application
    Filed: September 10, 2021
    Publication date: March 17, 2022
    Inventors: Andreas Rühe, Holger Breuer, Alexander Braun
  • Process for producing (cyclo)aliphatic polycarbonate polyols having low reactivity
    Patent number: 11059934
    Abstract: The present invention relates to a process for producing (cyclo)aliphatic polycarbonate polyols comprising the steps of a) reaction of at least one (cyclo)aliphatic polyol and at least one alkyl carbonate in the presence of at least one basic catalyst and b) neutralization by addition of at least one organic sulfonic acid having a molecular weight of 250 to 1000 g/mol and at least one branched or unbranched alkyl substitution having at least four carbon atoms, wherein step b) is performed after step a).
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: July 13, 2021
    Assignee: Covestro Deutschland AG
    Inventors: Michael Ludewig, Stefan Sommer, Holger Breuer, Michael Grahl
  • Process and apparatus for continuous production of aqueous polyurethane dispersions
    Patent number: 10752727
    Abstract: The application relates to a process for continuously producing aqueous polyurethane dispersions, which is characterized by the use of micro structured mixing elements and addition of water twice during the dispersion step. The energy input in the mixing of the dispersion is low. In addition, the application describes an apparatus suitable for execution of the aforementioned process.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: August 25, 2020
    Assignee: Covestro Deutschland AG
    Inventors: Hans Georg Grablowitz, Alexander Pross, Reiner Witkowski, Holger Breuer, Sven Gestermann, Christian Joachim Hahn, Stephan Schubert, Joachim Ritter
  • PROCESS FOR PRODUCING (CYCLO)ALIPHATIC POLYCARBONATE POLYOLS HAVING LOW REACTIVITY
    Publication number: 20200071449
    Abstract: The present invention relates to a process for producing (cyclo)aliphatic polycarbonate polyols comprising the steps of a) reaction of at least one (cyclo)aliphatic polyol and at least one alkyl carbonate in the presence of at least one basic catalyst and b) neutralization by addition of at least one organic sulfonic acid having a molecular weight of 250 to 1000 g/mol and at least one branched or unbranched alkyl substitution having at least four carbon atoms, wherein step b) is performed after step a).
    Type: Application
    Filed: December 18, 2017
    Publication date: March 5, 2020
    Inventors: Michael LUDEWIG, Stefan SOMMER, Holger BREUER, Michael Grahl