Patents by Inventor Dietmar Raulin

Dietmar Raulin 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).

  • Bi(Pb)SrCaCuO superconductors
    Patent number: 5814585
    Abstract: The invention relates to a spray pyrolytic process for the preparation of multi-element metal oxide powders useful as precursors of high temperature superconductor ceramics. Aerosols of aqueous solutions containing corresponding metal salts admixed in the required stoichiometric proportion are sprayed through an independently operated hydrogen/oxygen flame in such a way that a flame temperature of 800.degree.-1100.degree. C. is maintained to form said powders. Any contact of the aerosols and powders generated during the process with carbon or carbon-containing compounds or materials is strictly avoided.
    Type: Grant
    Filed: November 26, 1996
    Date of Patent: September 29, 1998
    Assignee: Merck Patent Gesellschaft mit Beschrankter Haftung
    Inventors: Rodney Riddle, Matthias Kuntz, Bernd Muller, Dietmar Raulin, Gunther Feldmann-Schlobohm
  • Spray-pyrolysis process of preparing superconductor precursors
    Patent number: 5614472
    Abstract: The invention relates to a spray pyrolyric process for the preparation of multi-element metal oxide powders useful as precursors of high temperature superconductor ceramics. Aerosols of aqueous solutions containing corresponding metal salts admixed in the required stoichiometric proportion are sprayed through an independently operated hydrogen/oxygen flame in such a way that a flame temperature of 800.degree.-1100.degree. C. is maintained to form said powders. Any contact of the aerosols and powders generated during the process with carbon or carbon-containing compounds or materials is strictly avoided.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: March 25, 1997
    Assignee: Merck Patent Gesellschaft Mit Beschrankter Haftung
    Inventors: Rodney Riddle, Matthias Kuntz, Bernd M uller, Dietmar Raulin, G unther Feldmann-Schlobohm