Patents by Inventor Manfred Holupirek

Manfred Holupirek 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).

  • Open-pored moldings, a process for their production and use thereof
    Patent number: 5147904
    Abstract: Open-pored moldings containing the product of the foaming and setting of (a) an aluminum fluorosilicate glass, (b) at least one polycarboxylic acid with an average molecular weight of >500, (c) a foaming agent, other than carbonates and/or hydrogen-carbonates, (d) optionally a chelating agent and (e) water, are suitable in particular as bone substitute material.Production is carried out by homogeneously mixing (a), (b), (c), optionally (d), and (e), then foaming, shaping and setting.
    Type: Grant
    Filed: August 22, 1990
    Date of Patent: September 15, 1992
    Assignee: Thera Patent GmbH & Co. KG
    Inventors: Peter Jochum, Oswald Gasser, Manfred Holupirek, Erich Wanek, Rainer Guggenberger, Klaus-Peter Stefan, Klaus Ellrich
  • (Meth)acrylic acid esters and the use thereof for preparing dental compositions
    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