Patents by Inventor Klaus Sander

Klaus Sander 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).

  • Patent number: 12054581
    Abstract: The invention relates to a method for producing a polyoxyalkylene polyester polyol by reacting a polyoxyalkylene polyol with a lactone in the presence of a Brønsted acid catalyst, wherein the catalyst has a pKa value of 1 or less; the number-average molar mass of the polyoxyalkylene polyol is ?1000 g/mol, preferably ?1500 g/mol, particularly preferably ?2000 g/mol; and in the lactone a CH2 group is bonded to the ring oxygen. The invention further relates to polyoxyalkylene polyester polyols obtainable using the method according to the invention, and to a method for producing polyurethanes by reacting the polyoxyalkylene polyester polyols according to the invention with polyisocyanates.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: August 6, 2024
    Assignee: Covestro Intellectual Property GmbH & Co. KG
    Inventors: Elisabeth Vogelsang, Joerg Hofmann, Marina Reithmeier, Philipp Sander, Sascha Froebel, Klaus Lorenz
  • Patent number: 7180427
    Abstract: An information system for supplying a predetermined region with information includes a transmitter for transmitting information in digitally coded form and a hand-held device. The hand-held device includes a receiver for receiving the information transmitted by the transmitter, a digital memory device for storing the received information, a reproduction device for reproducing the stored information, in particular acoustically and/or optically, and an event detection device for detecting specific events, wherein, upon detection of an event from the stored information, the information which is assigned to the detected event is selected for reproduction.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: February 20, 2007
    Assignee: Sennheiser electronics GmbH Co. KG
    Inventors: Rolf Meyer, Wolfgang Niehoff, Bernd Roth, Klaus Sanders, Heinz Kuehn
  • Publication number: 20050245190
    Abstract: An information system for supplying a predetermined region with information includes a transmitter for transmitting information in digitally coded form and a hand-held device. The hand-held device includes a receiver for receiving the information transmitted by the transmitter, a digital memory device for storing the received information, a reproduction device for reproducing the stored information, in particular acoustically and/or optically, and an event detection device for detecting specific events, wherein, upon detection of an event from the stored information, the information which is assigned to the detected event is selected for reproduction.
    Type: Application
    Filed: June 21, 2005
    Publication date: November 3, 2005
    Inventors: Rolf Meyer, Wolfgang Niehoff, Bernd Roth, Klaus Sanders, Hans Kuehn
  • Patent number: 4389692
    Abstract: A thermoswitch is physically located on a portion of the current supply connector between the current source and the exciter winding of the starter motor. The portion, constructed as a simple strip with flaps holding the thermostat, influences the temperature-dependent control portion of the thermoswitch according to heating in the armature, field winding, and brushes of the starter motor. The thermoswitch turns OFF the starter system by interrupting current supply to the kick-in starter relay.
    Type: Grant
    Filed: January 21, 1981
    Date of Patent: June 21, 1983
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Sander, Hans Wurth