Patents by Inventor Johannes Roemer

Johannes Roemer 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).

  • Publication number: 20210261111
    Abstract: The invention relates to a hybrid powertrain in a motor vehicle with an internal combustion engine (1), an electric machine (2), a variable transmission (4) and one or more driven wheels (3). The transmission (4) includes at least a variator unit (9) for varying the output speed of the internal combustion engine (1) and a first differential gearing (5) with three rotary members (51, 54, 53) that are respectively drivingly connected to an output shaft (92) of the variator unit (9), a rotor shaft (21) of the electric machine (2) and a wheel shaft (31) of the driven wheels (3). The invention concerns a method for operating such a hybrid powertrain.
    Type: Application
    Filed: June 27, 2019
    Publication date: August 26, 2021
    Inventors: Lucas Hubertus Johannes Römers, Arjen Brandsma
  • Publication number: 20210262556
    Abstract: The invention relates to a powertrain for a fully electric vehicle comprising an electric machine (1), a driven wheel (2) and a gearing (3) that is arranged between the electric machine (1) and the driven wheel (2) and that provides a driving connection there between, which gearing (3) includes at least a first speed reduction stage (31) providing a fixed first speed ratio, a variator unit (40) providing a variable speed ratio and a second speed reduction stage (32) providing a fixed second speed ratio between an input gear wheel (35) and an output gear wheel (36) thereof, whereof the input gear wheel (35) rotates as one with the output shaft of variator unit (40). According to the invention, a maximum overall speed ratio provided by the gearing (3) between the electric machine (1) and the driven wheel (2) amounts to at least 20:1.
    Type: Application
    Filed: September 18, 2019
    Publication date: August 26, 2021
    Inventors: Lucas Hubertus Johannes Römers, Manuel Gärtner
  • Patent number: 6339079
    Abstract: A novel class of gonane type and D-homo-gonane type steroids having sulfatase-inhibiting and/or estrogenic activity is presented for application in the pharmaceutical industry. The number and location of sulfamoyloxy groups on the steroids provides for sulfatase inhibiting and estrogenic activities that independently vary over a wide range, allowing the customization of the pharmaceutical for specific purposes, including treatment and diagnosis of estrogen-dependent tumors.
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: January 15, 2002
    Assignee: id pharma GmbH
    Inventors: Helmut Kasch, Winfried Schumann, Johannes Roemer, Joerg Steinbach