Patents by Inventor Gabriele Rackelmann

Gabriele Rackelmann 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).

  • Use of branched polyacids in dental compounds
    Patent number: 7456232
    Abstract: The invention relates to dental compounds that contain at least one polyacid or at least one polyacid and at least one salt of at least one polyacid. The polyacids used have at least one branch point in the polymer structure and are water-soluble and not cross-linked and their repeat units consist to at least 80 mole % of acrylic acid segments.
    Type: Grant
    Filed: November 19, 2001
    Date of Patent: November 25, 2008
    Assignee: 3M ESPE AG
    Inventors: Markus Mikulla, Guenther Lechner, Klaus-Peter Stefan, Gabriele Rackelmann, Gunther Eckhardt
  • Inert dental glass
    Patent number: 7264665
    Abstract: The invention relates to the use of ions of weakly basic oxides as linking ions for polyacids in cements, preferably polyelectrolyte cements. Suitable ions comprise elements of the scandium series, for example, Sc3+, Y3+, La3+, Ce4+ and all subsequent tri- and tetra-valent lanthanides and the ions Mg2+, Zn2+, Ga2+, In2+. The application of said ions permits a regulation of the cement reaction without surface treatment of the glass powder.
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: September 4, 2007
    Assignee: 3M ESPE AG
    Inventors: Stefan Hoescheler, Markus Mikulla, Gabriele Rackelmann, Volker Bambach
  • Utilization of polyacids having a tight molar mass distribution
    Publication number: 20050261393
    Abstract: The invention relates to dental materials containing at least one polyacid or at least one polyacid and at least one salt of at least one polyacid with a molar mass distribution Mw/Mn ranging from 1.0 to 1.7, whereby the polyacid has a molecular weight Mw ranging from 1,000 to 500,000.
    Type: Application
    Filed: November 19, 2001
    Publication date: November 24, 2005
    Inventors: Markus Mikulla, Gabriele Rackelmann, Klaus-Peter Stefan
  • Inert dental glass
    Publication number: 20040079258
    Abstract: The invention relates to the use of ions of weakly basic oxides as linking ions for polyacids in cements, preferably polyelectrolyte cements. Suitable ions comprise elements of the scandium series, for example, Sc3+, Y3+, La3+, Ce4+ and all subsequent tri- and tetra-valent lanthanides and the ions Mg2+, Zn2+, Ga2+, In2+. The application of said ions permits a regulation of the cement reaction without surface treatment of the glass powder.
    Type: Application
    Filed: December 8, 2003
    Publication date: April 29, 2004
    Inventors: Stefan Hoescheler, Markus Mikulla, Gabriele Rackelmann, Volker Bambach