Patents by Inventor Stephan STEINKELLER

Stephan STEINKELLER 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).

  • Binder based on activated ground granulated blast furnace slag useful for forming a concrete type material
    Patent number: 9856174
    Abstract: A binder material useful for forming a concrete type material includes, calculated on a dry, water and carbon dioxide free basis, a base component constituting 50-95 wt % of the binder material, the base component having ground granulated blast furnace slag and an activator component constituting 5-50 wt % of the binder material. The activator component includes aluminum sulfate and a sodium hydroxide generating compound. The final binder material includes, calculated on a dry, water and carbon dioxide free basis, ground granulated blast-furnace slag 35-95 wt %, aluminum sulfate AI2(SO4)3 1-25 wt %, and sodium hydroxide generating compound 4-35 wt %.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: January 2, 2018
    Inventor: Stephan Steinkeller
  • A BINDER BASED ON ACTIVATED GROUND GRANULATED BLAST FURNACE SLAG USEFUL FOR FORMING A CONCRETE TYPE MATERIAL
    Publication number: 20160214899
    Abstract: A binder material useful for forming a concrete type material includes, calculated on a dry, water and carbon dioxide free basis, a base component constituting 50-95 wt % of the binder material, the base component having ground granulated blast furnace slag and an activator component constituting 5-50 wt % of the binder material. The activator component includes aluminum sulfate and a sodium hydroxide generating compound. The final binder material includes, calculated on a dry, water and carbon dioxide free basis, ground granulated blast-furnace slag 35-95 wt %, aluminum sulfate AI2(SO4)3 1-25 wt %, and sodium hydroxide generating compound 4-35 wt %.
    Type: Application
    Filed: September 26, 2014
    Publication date: July 28, 2016
    Inventor: Stephan STEINKELLER