Patents by Inventor Kai Dallman

Kai Dallman 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).

  • Ceria zirconia alumina composition with enhanced thermal stability
    Patent number: 11135569
    Abstract: The subject matter of the invention is a method for producing composites, comprising mixed oxides of aluminum oxide and cerium/zirconium, hereinafter referred to briefly as Al/Ce/Zr oxide composite(s), using boehmite and soluble cerium/zirconium salts. Al/Ce/Zr oxide composites produced in this way have an increased thermal stability.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: October 5, 2021
    Assignees: TREIBACHER INDUSTRIE AG, SASOL GERMANY GMBH
    Inventors: Karl Schermanz, Amod Sagar, Marcos Schöneborn, Reiner Glöckler, Kai Dallman, Frank Alber, Sonke Rolfs
  • CERIA ZIRCONIA ALUMINA COMPOSITION WITH ENHANCED THERMAL STABILITY
    Publication number: 20180147559
    Abstract: A process for the preparation of a calcined mixed oxide comprising Al-, Ce- and Zr-oxides, comprising the steps of providing an aqueous slurry comprising hydroxides of cerium and zirconium, contacting the hydroxides of cerium and zirconium with an alumina precursor to obtain an aqueous suspension of solids, isolating the solids from the aqueous suspension and drying to obtain a solid composition, calcining the solid composition of step (c) at a temperature from 450° C. to 1200° C. for at least 1 hour to obtain a calcined mixed oxide.
    Type: Application
    Filed: January 29, 2018
    Publication date: May 31, 2018
    Inventors: Karl Schermanz, Amod Sagar, Marcos Schöneborn, Reiner Glöckler, Kai Dallman, Frank Alber, Sonke Rolfs