Patents by Inventor Kai Wirz

Kai Wirz 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).

  • Siloxane-containing fire extinguishing foam
    Patent number: 9687686
    Abstract: The invention relates to fire extinguishing foams or concentrates thereof, these comprising a carbohydrate-containing siloxane surfactant.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: June 27, 2017
    Assignee: Universität zu Köln
    Inventors: Dirk Blunk, Ralf Helmut Hetzer, Angela Sager-Wiedmann, Kai Wirz
  • SILOXANE-CONTAINING FIRE EXTINGUISHING FOAM
    Publication number: 20160332013
    Abstract: The invention relates to fire extinguishing foams or concentrates thereof, these comprising a carbohydrate-containing siloxane surfactant.
    Type: Application
    Filed: May 19, 2016
    Publication date: November 17, 2016
    Inventors: Dirk Blunk, Ralf Helmut Hetzer, Angela Sager-Wiedmann, Kai Wirz
  • Siloxane-containing fire extinguishing foam
    Patent number: 9446272
    Abstract: The invention relates to fire extinguishing foams or concentrates thereof, these comprising a carbohydrate-containing siloxane surfactant.
    Type: Grant
    Filed: September 3, 2012
    Date of Patent: September 20, 2016
    Assignee: Universität zu Köln
    Inventors: Dirk Blunk, Ralf Helmut Hetzer, Angela Sager-Wiedmann, Kai Wirz
  • SILOXANE-CONTAINING FIRE EXTINGUISHING FOAM
    Publication number: 20140306141
    Abstract: The invention relates to fire extinguishing foams or concentrates thereof, these comprising a carbohydrate-containing siloxane surfactant.
    Type: Application
    Filed: September 3, 2012
    Publication date: October 16, 2014
    Applicant: UNIVERSITAT ZU KOLN
    Inventors: Dirk Blunk, Ralf Helmut Hetzer, Angela Sager-Wiedmann, Kai Wirz