Patents by Inventor Sandra MUEHLING

Sandra MUEHLING 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 the preparation of copolymers of alkyl methacrylates and maleic anhydride
    Patent number: 10703840
    Abstract: A method for the preparation of a copolymer containing at least one alkyl methacrylate and maleic anhydride having a number average molecular weight of 4000 to 18000 g/mol proceeds by solution polymerization in the presence of a radical initiator.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: July 7, 2020
    Assignee: Evonik Operations GmbH
    Inventors: Rhishikesh Gokhale, Sandra Muehling, Miriam Kathrin Stihulka, Klaus Schimossek, Frank-Olaf Maehling
  • Method for the preparation of copolymers of alkyl methacrylates and maleic anhydride
    Patent number: 10465027
    Abstract: A method for the preparation of a sulfur-free copolymer proceeds by solution polymerization in the presence of a radical initiator, wherein the copolymer contains at least one alkyl methacrylate and maleic anhydride having a number average molecular weight of 3000 to 9000 g/mol.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: November 5, 2019
    Assignee: Evonik Oil Additives GmbH
    Inventors: Rhishikesh Gokhale, Sandra Muehling, Miriam Kathrin Stihulka, Klaus Schimossek, Frank-Olaf Maehling
  • METHOD FOR THE PREPARATION OF COPOLYMERS OF ALKYL METHACRYLATES AND MALEIC ANHYDRIDE
    Publication number: 20170369615
    Abstract: A method for the preparation of a sulfur-free copolymer proceeds by solution polymerization in the presence of a radical initiator, wherein the copolymer contains at least one alkyl methacrylate and maleic anhydride having a number average molecular weight of 3000 to 9000 g/mol.
    Type: Application
    Filed: December 16, 2015
    Publication date: December 28, 2017
    Applicant: Evonik Oil Additives GmbH
    Inventors: Rhishikesh GOKHALE, Sandra MUEHLING, Miriam Kathrin STIHULKA, Klaus SCHIMOSSEK, Frank-Olaf MAEHLING
  • METHOD FOR THE PREPARATION OF COPOLYMERS OF ALKYL METHACRYLATES AND MALEIC ANHYDRIDE
    Publication number: 20170362360
    Abstract: A method for the preparation of a copolymer containing at least one alkyl methacrylate and maleic anhydride having a number average molecular weight of 4000 to 18000 g/mol proceeds by solution polymerization in the presence of a radical initiator.
    Type: Application
    Filed: December 16, 2015
    Publication date: December 21, 2017
    Applicant: Evonik Oil Additives GmbH
    Inventors: Rhishikesh GOKHALE, Sandra MUEHLING, Miriam Kathrin STIHULKA, Klaus SCHIMOSSEK, Frank-Olaf MAEHLING