Patents by Inventor Gerald Stief

Gerald Stief 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).

  • RETROFITTING A HEATING STEAM EXTRACTION FACILITY IN A FOSSIL-FIRED POWER PLANT
    Publication number: 20130247571
    Abstract: A method for retrofitting an existing steam turbine with a steam extraction facility is provided. The stem turbine has a plurality of pressure stages and is integrated into a fossil-fired steam power plant. A steam extraction line is connected to one pressure stage or between two pressure stages of the steam turbine, and a heating steam turbine is connected into the steam extraction line.
    Type: Application
    Filed: November 28, 2011
    Publication date: September 26, 2013
    Inventors: Andreas Pickard, Thomas Schneider, Gerald Stief, Johannes-Werner Wein
  • High-temperature fuel cell system and method for its operation
    Patent number: 5942344
    Abstract: A high-temperature fuel cell system and a method for its operation include at least one electrical heating element for heating at least one high-temperature fuel cell block. The heating element is disposed outside the high-temperature fuel cell block. As a result, the fuel cells are neither polluted nor damaged.
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: August 24, 1999
    Assignee: Siemens Aktiengesellschaft
    Inventors: Jurgen Lehmeier, Kurt Reiter, Gerald Stief