Patents by Inventor Heijo Hubner

Heijo Hubner 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).

  • Patent number: 6040354
    Abstract: An impression composition which is based on an aziridine-free composition which can be vulcanized at room temperature, and which comprises wax is provided according to the invention. The wax increases the dimensional stability of the composition during mixing and curing. The invention furthermore provides a kit for the preparation of such compositions and a process for the preparation of the wax-containing components of these kits. The wax is dispersed throughout the composition and is prepared by shock-cooling. The wax forms a crystalline network.
    Type: Grant
    Filed: August 21, 1997
    Date of Patent: March 21, 2000
    Assignee: Ernst Muhlbauer KG
    Inventors: Heijo Hubner, Dierk Lubbers, Wolfgang Muhlbauer
  • Patent number: 4795823
    Abstract: (Methy)acrylic acid esters of the general formula(Mo).sub.n --[--A--O--CO--CH.sub.2 --O--CH.sub.2 --CH.sub.2 --O--CH.sub.2 --CO--O--].sub.x --A--(OM).sub.nare described whereinA is an alcohol radical having at least 4 chain atoms between two junction sites.M is CH.sub.2 .dbd.C(R.sup.1)--CO wherein R.sup.1 stands for hydrogen or methyl,n is 1 or 2, andx is 0.3 to 3.These esters are suited for the preparation of dental compositions.
    Type: Grant
    Filed: March 2, 1987
    Date of Patent: January 3, 1989
    Assignee: ESPE Stiftung & Co. Produktions
    Inventors: Werner Schmitt, Peter Jochum, Wolf-Dietrich Zahler, Heijo Hubner, Manfred Holupirek, Oswald Gasser, Christian Herzig
  • Patent number: 4585667
    Abstract: The physical properties, especially resistance to abrasion, to bending and to pressure, of plaster models for use in dentistry are improved in that a plaster model obtained in a manner known in the art is impregnated with (a) at least one photopolymerizable ester of acrylic and/or methacrylic acid, (b) at least one photopolymerization initiator, and (c) optionally at least one photopolymerization activator--(a), (b) and (c) being present in liquid or dissolved state--and the impregnated plaster model is irradiated with light suitable to initiate photopolymerization by the photoinitiator.
    Type: Grant
    Filed: December 28, 1984
    Date of Patent: April 29, 1986
    Assignee: ESPE Fabrik Pharmazeutischer Praparate GmbH
    Inventor: Heijo Hubner
  • Patent number: 4532268
    Abstract: Imidazoles in dissolved form act as an agent for retarding the gelation of the polymerization of aziridine compounds initiated with sulfonium salts. The composition is particularly useful in dentistry applications, such as in the preparation of impressions and provisional denture parts.
    Type: Grant
    Filed: December 1, 1983
    Date of Patent: July 30, 1985
    Assignee: ESPE, Fabrik pharmazeutischer Praparate GmbH
    Inventors: Peter Jochum, Heijo Hubner, Oswald Gasser