Patents by Inventor Mari-Ann Einarsrud

Mari-Ann Einarsrud 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).

  • CERAMIC COMPOSITE OXIDE
    Publication number: 20220106232
    Abstract: The invention provides a ceramic composite oxide of formula (I): (1?x)AaBbOy+xCcDdOz (I) wherein A, B, C and D are each independently selected from the group consisting of Li, Na, Mg, Al, P, K, Ca, Sc, Ti, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Sr, Y, Zr, Nb, Mo, Ru, In, Sn, Ba, La, Ce, Pr, Nd, Sm, Eu, Gd, Er, Tm, Yb, Lu, Ta, W, Bi and mixtures thereof; x is 0.05 to 0.95; y and z are balanced by the charge of the cations; 0?a, b, c, d?1; and wherein said ceramic composite oxide has an average particle size diameter of 10 to 700 nm.
    Type: Application
    Filed: January 27, 2020
    Publication date: April 7, 2022
    Inventors: Guttorm SYVERTSEN-WIIG, Sophie Beatrice LABONNOTE-WEBER, Tor GRANDE, Kjell WIIK, Hilde Lea LEIN, Mari-Ann EINARSRUD
  • PROCESS FOR THE PREPARATION OF BISMUTH SODIUM TITANATE
    Publication number: 20220106196
    Abstract: The invention provides a process for the preparation of a bismuth sodium titanate (BNT) compound of formula (I) wherein A is one or more of Bi, Na, Li, K, Mg, Ca, Sr, Ba, La, Al, Cu, Eu, Ag and Zn; B is one or more of Ti, Nb, Ta, Zr, Fe, Nd, Eu and Co; 0<x<0.8; 0<y<0.8; and ?0.1<z<0.1; said process comprising spray pyrolysis of a solution comprising Bi ions, Na ions, Ti ions and, if present, metal (A) and/or metal (B) ions.
    Type: Application
    Filed: January 27, 2020
    Publication date: April 7, 2022
    Inventors: Mari-Ann EINARSRUD, Mads HEINTZ, Sophie Beatrice LABONNOTE-WEBER, Guttorm SYVERTSEN-WIIG, Tor GRANDE, Leif Olav JØSANG
  • Proton conductors
    Patent number: 8426077
    Abstract: Proton conductivity has been shown in acceptor-doped rare earth orthoniobates and tantalates (LnNbO4 and LnTaO4) at high temperatures and in a humid atmosphere. The use of the materials as an electrolyte in a laboratory-scale fuel cell and water vapor sensor has been demonstrated. Results for Ca-doped LaNbO4 are given as examples.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: April 23, 2013
    Assignee: Universitetet I Oslo
    Inventors: Truls Norby, Reidar Haugsrud, Stefan Marion, Mari-Ann Einarsrud, Kjell Wiik, Øystein Andersen, Ruth Astrid Strøm, Tor Grande
  • Proton Conductors
    Publication number: 20090104500
    Abstract: Proton conductivity has been shown in acceptor-doped rare earth orthoniobates and tantalates (LnNbO4 and LnTaO4) at high temperatures and in a humid atmosphere. The use of the materials as an electrolyte in a laboratory-scale fuel cell and water vapour sensor has been demonstrated. Results for Ca-doped LaNbO4 are given as examples.
    Type: Application
    Filed: December 22, 2005
    Publication date: April 23, 2009
    Applicant: UNIVERSITETET I OSLO
    Inventors: Truls Norby, Reidar Haugsrud, Stefan Marion, Mari-Ann Einarsrud, Kjell Wiik, Oystein Andersen, Ruth Astrid Strom, Tor Grande