Patents by Inventor Alfred Hohmann

Alfred Hohmann 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).

  • Publication number: 20110293866
    Abstract: One aspect relates to a method for connecting a housing of an active implantable medical device to a head part, whereby an uncured joining agent that is arranged, at least in part, between the housing and the head part is transitioned into a cured joining agent to attain a firmly bonded connection. In one embodiment, the uncured joining agent includes monomers of a (meth)acrylic acid alkyl ester, and the cured joining agent includes at least one polymer of the (meth)acrylic acid alkyl ester.
    Type: Application
    Filed: May 25, 2011
    Publication date: December 1, 2011
    Applicant: W.C. Heraeus GmbH
    Inventors: Heiko Specht, Andreas Reisinger, Klaus Ruppert, Alfred Hohmann
  • Publication number: 20100087565
    Abstract: Dental composite materials based on (meth)acrylate, exhibiting a proportion of TCD monomers in the total composition of 1-15% by weight and the quotient of flexural strength/shrinkage tension is at least 35.
    Type: Application
    Filed: December 10, 2009
    Publication date: April 8, 2010
    Applicant: HERAEUS KULZER GMBH
    Inventors: Andreas Utterodt, Klaus Ruppert, Matthias Schaub, Christine Diefenbach, Kurt Reischl, Alfred Hohmann, Michael Eck, Nelli Schonhof, Jutta Schneider
  • Publication number: 20100076115
    Abstract: Dental composites comprising monomers, crosslinking agents, fillers, and initiators, in which the crosslinking agent comprises more than 50% by weight of the acrylate monomer TCD-DI-HEA, and the cyctotoxicity of the cured composite as determined according to the standard requirements of ISO 10993-5 and DIN EN ISO 7405 is assessed into the category “no cytotoxic potential”.
    Type: Application
    Filed: November 9, 2009
    Publication date: March 25, 2010
    Applicant: HERAEUS KULZER GMBH
    Inventors: Andreas Utterodt, Klaus Ruppert, Matthias Schaub, Christine Diefenbach, Kurt Reischl, Alfred Hohmann, Michael Eck, Nelli Schönhof
  • Patent number: 7601767
    Abstract: For composite materials having a total filler content of 80 to 95% by weight, containing A) 0.5 to 10% by weight of non-agglomerated nanofillers having particle sizes of 1 to 50 nm in the filler component, B) at least 60% by weight of a filler mixture of 50 to 90% coarse-particle and 10 to 50% fine-particle dental glass in the filler component, having a size ratio, relative to the average particle size (d50 value), of coarse to fine particles of >1:4 to 1:30, C) as monomer component, a monomer mixture of i. 60 to 80% bis-GMA or TCD-di-HEMA or TCD-di-HEA, ii. 10 to 18% UDMA, iii. Residual TEDMA and/or multifunctional crosslinkers, D) up to 1% photoinitiator(s); and E) optionally, at least one additional dental glass in the filler component having a different particle size than the coarse- and fine-particle dental glass, the polymerization shrinkage may be reduced to <1.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: October 13, 2009
    Assignee: Heraeus Kutzer GmbH
    Inventors: Klaus Ruppert, Andreas Grundler, Kurt Reischl, Michael Eck, Alfred Hohmann, Christine Diefenbach
  • Publication number: 20090036565
    Abstract: Dental composite materials based on (meth)acrylate, exhibiting a proportion of TCD monomers in the total composition of 1-15% by weight and the quotient of flexural strength/shrinkage tension is at least 35.
    Type: Application
    Filed: July 7, 2008
    Publication date: February 5, 2009
    Applicant: HERAEUS KULZER GMBH
    Inventors: Andreas Utterodt, Klaus Ruppert, Matthias Schaub, Christine Diefenbach, Kurt Reischl, Alfred Hohmann, Michael Eck, Nelli Schonhof, Jutta Schneider
  • Publication number: 20080167399
    Abstract: Compositions for dental composites comprising monomers, crosslinking agents, fillers, initiators, A the proportion of crosslinking agent being formed in an amount of more than 50% by acrylate monomers with a TCD urethane structure having the general formula in which A, X, Z, R1 R2 R3 and r have the meaning indicated in claim 1, provide polymerized composite materials with a particularly low cytotoxicity according to the standard requirements according to ISO 10993-5 and DIN EN ISO 7405.
    Type: Application
    Filed: December 10, 2007
    Publication date: July 10, 2008
    Applicant: HERAEUS KULZER GMBH
    Inventors: Andreas Utterodt, Klaus Ruppert, Matthias Schaub, Christine Diefenbach, Kurt Reischl, Alfred Hohmann, Michael Eck, Nelli Schonhof
  • Publication number: 20060252845
    Abstract: For composite materials having a total filler content of 80 to 95% by weight, containing A) 0.5 to 10% by weight of non-agglomerated nanofillers having particle sizes of 1 to 50 nm in the filler component, B) at least 60% by weight of a filler mixture of 50 to 90% coarse-particle and 10 to 50% fine-particle dental glass in the filler component, having a size ratio, relative to the average particle size (d50 value), of coarse to fine particles of >1:4 to 1:30, C) as monomer component, a monomer mixture of i. 60 to 80% bis-GMA or TCD-di-HEMA or TCD-di-HEA, ii. 10 to 18% UDMA, iii. Residual TEDMA and/or multifunctional crosslinkers, D) up to 1% photoinitiator(s); and E) optionally, at least one additional dental glass in the filler component having a different particle size than the coarse- and fine-particle dental glass, the polymerization shrinkage may be reduced to <1.
    Type: Application
    Filed: April 21, 2006
    Publication date: November 9, 2006
    Applicant: Heraeus Kulzer GmbH
    Inventors: Klaus Ruppert, Andreas Grundler, Kurt Reischl, Michael Eck, Alfred Hohmann, Christine Diefenbach
  • Publication number: 20050123880
    Abstract: A method for color correction of replacement teeth or tooth surfaces by application of light-hardening corrective colors for the basic tooth colors is carried out with a color kit comprising: 1 corrective color for the Vita shades A, 1 corrective color for the Vita shades B, 1 corrective color for the Vita shades C, 1 corrective color for the Vita shades D, 1 orange corrective color for individualizing the Vita shades in the red/yellow color range, 1 blue corrective color for individualizing the Vita shades in the blue/green color range, 1 white corrective color for individualizing the Vita shades with respect to brightness and transparency, 1 transparent thinning enamel for adjusting the color intensity and optionally 1 black corrective color to individualize the Vita shades with respect to brightness 1 shade guide with mixing instructions and explanations of correction options, necessary tools like mixing plate, measuring pipette and brush.
    Type: Application
    Filed: October 1, 2004
    Publication date: June 9, 2005
    Inventors: Andreas Grundler, Alfred Hohmann, Albert Erdrich
  • Publication number: 20040138330
    Abstract: A photocurable dental coating material comprises
    Type: Application
    Filed: December 9, 2003
    Publication date: July 15, 2004
    Applicant: Heraeus Kulzer GmbH & Co. KG
    Inventors: Andreas Grundler, Yasuo Onodera, Albert Erdrich, Alfred Hohmann