Patents by Inventor George Furmanski

George Furmanski 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: 20150076064
    Abstract: This invention relates generally to processes for extracting iron and/or calcium from geothermal brines.
    Type: Application
    Filed: November 21, 2014
    Publication date: March 19, 2015
    Inventors: John L. FEATHERSTONE, George Furmanski
  • Patent number: 8894865
    Abstract: This invention relates generally to processes for extracting iron and/or calcium from geothermal brines.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: November 25, 2014
    Assignee: Berkshire Hathaway Energy Company
    Inventors: John L. Featherstone, George Furmanski
  • Patent number: 8313653
    Abstract: This invention relates generally to processes for extracting iron and/or calcium from geothermal brines.
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: November 20, 2012
    Assignee: Midamerican Energy Holdings Company
    Inventors: John L. Featherstone, George Furmanski
  • Publication number: 20110049062
    Abstract: This invention relates generally to processes for extracting iron and/or calcium from geothermal brines.
    Type: Application
    Filed: August 11, 2010
    Publication date: March 3, 2011
    Inventors: John L. FEATHERSTONE, George Furmanski
  • Patent number: 7776202
    Abstract: This invention relates generally to a process of producing electrolytic manganese dioxide (EMD). More specifically, a method of producing EMD from geothermal brine solutions is provided. Methods for production of manganese dioxide from geothermal brines through an electrolytic process are also provided.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: August 17, 2010
    Assignee: MidAmerican Energy Holdings Company
    Inventors: John L. Featherstone, George Furmanski
  • Publication number: 20040149590
    Abstract: This invention relates generally to a process of producing electrolytic manganese dioxide (EMD). More specifically, a method of producing EMD from geothermal brine solutions is provided. Methods for production of manganese dioxide from geothermal brines through an electrolytic process are also provided.
    Type: Application
    Filed: January 23, 2004
    Publication date: August 5, 2004
    Inventors: John L. Featherstone, George Furmanski
  • Patent number: 6682644
    Abstract: This invention relates generally to a process of producing electrolytic manganese dioxide (EMD). More specifically, a method of producing EMD from geothermal brine solutions is provided. Methods for production of manganese dioxide from geothermal brines through an electrolytic process are also provided.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: January 27, 2004
    Assignee: MidAmerican Energy Holdings Company
    Inventors: John L. Featherstone, George Furmanski
  • Publication number: 20030226761
    Abstract: This invention relates generally to a process of producing electrolytic manganese dioxide (EMD). More specifically, a method of producing EMD from geothermal brine solutions is provided. Methods for production of manganese dioxide from geothermal brines through an electrolytic process are also provided.
    Type: Application
    Filed: May 31, 2002
    Publication date: December 11, 2003
    Inventors: John L. Featherstone, George Furmanski