Patents by Inventor Werner Finger

Werner Finger 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: 20040192805
    Abstract: Curable dental compositions containing fine-particle anion exchangers exhibit excellent curing, even on dental surfaces that have been pretreated with acidic components.
    Type: Application
    Filed: February 3, 2004
    Publication date: September 30, 2004
    Applicant: Heraeus Kulzer GmbH & Co. KG
    Inventor: Werner Finger
  • Patent number: 5921779
    Abstract: A formulation for use as a dental adhesive in the treatment of the hard tooth substance, to provide enhanced bonding between dental restoration material and the enamel and dentine of the tooth. The formulation contains glycerol di(meth)acrylate, volatile solvent, photo-initiator and, optionally, usual additives and fillers.
    Type: Grant
    Filed: November 13, 1996
    Date of Patent: July 13, 1999
    Assignee: Heraeus Kulzer GmbH & Co. KG
    Inventors: Wolfgang Podszun, Werner Finger, Ludger Heiliger
  • Patent number: 5849270
    Abstract: The adhesion of resin material to the solid substance of the tooth and to metals and metal alloys, for example, dental alloys, can be improved with a photo-polymerizable formulation containing hydroxyalkyl(meth)acrylates, urethanedi(meth)acrylates and, if applicable, esters of aromatic polycarboxylic acids possessing methacryloyloxy groups.
    Type: Grant
    Filed: January 22, 1997
    Date of Patent: December 15, 1998
    Assignee: Heraeus Kulzer GmbH
    Inventors: Wolfgang Podszun, Werner Finger
  • Patent number: 5808104
    Abstract: Polymerizable aromatic carboxylic acids and carboxylic acid anhydrides with cyclic carbonate groups which are useful for improving adhesion of synthetic dental filling materials.
    Type: Grant
    Filed: July 23, 1997
    Date of Patent: September 15, 1998
    Assignee: Heraeus Kulzer GmbH
    Inventors: Wolfgang Podszun, Ludger Heiliger, Werner Finger, Martin Grunwald, Carl Casser
  • Patent number: 5763622
    Abstract: The invention relates to urethane acrylates and urethane methacrylates containing cyclic carbonate groups, and use thereof in dental materials and lithographic plates.
    Type: Grant
    Filed: November 20, 1996
    Date of Patent: June 9, 1998
    Assignee: Bayer AG
    Inventors: Wolfgang Podszun, Joachim Kruger, Werner Finger, Ludger Heiliger, Carl Casser
  • Patent number: 5760101
    Abstract: A condensation product of a hydroxy(meth)acrylate compound corresponding to the formula ##STR1## in which R.sub.1 is hydrogen or methyl, A is a trivalent aliphatic residue with 3 to 15 C-atoms which is unsubstituted or substituted with OH groups and optionally contains up to 5 ether bridges, and an aromatic carboxylic acid anhydrides compound of the formula (II) or an aromatic carboxylic acid anhydride chloride compound of the formula (II) ##STR2## in which Ar is a benzene ring or a naphthalene ring, n is 1 or 2, and m is 0, 1 or 2. The condensation product has a molar mass of 300 and to 10,000 daltons. The condensation product is useful as an adhesive to bond dental filling materials to teeth.
    Type: Grant
    Filed: March 7, 1997
    Date of Patent: June 2, 1998
    Assignee: Heraeus Kulzer GmbH
    Inventors: Ludger Heiliger, Wolfgang Podszun, Werner Finger
  • Patent number: 5621119
    Abstract: The invention relates to diacrylates and dimethacrylates having cyclic carbonate groups, and their use in dental materials.
    Type: Grant
    Filed: July 14, 1995
    Date of Patent: April 15, 1997
    Assignee: Heraeus Kulzer GmbH & Co., KG
    Inventors: Wolfgang Podszun, Klaus Schapers, Werner Finger, Ludger Heiliger, Carl Casser
  • Patent number: 5354827
    Abstract: The invention relates to formulations for use as an adhesive component for treatment of tooth hard substance, a process for their preparation and their use.
    Type: Grant
    Filed: March 23, 1993
    Date of Patent: October 11, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Muller, Werner Finger, Wolfgang Podszun, Jens Winkel
  • Patent number: 5294646
    Abstract: The invention relates to new N-alkyl-N-(meth)acryloyloxyalkylcarboxamides of aromatic carboxylic acids and aromatic carboxylic acid anhydrides, their preparation and formulations of these compounds for use as adhesives for the treatment of dental hard substance.
    Type: Grant
    Filed: June 25, 1992
    Date of Patent: March 15, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Muller, Wolfgang Podszun, Werner Finger, Jens Winkel
  • Patent number: 5264485
    Abstract: The invention relates to formulations for use as an adhesive component in the restoration of dental hard substance.
    Type: Grant
    Filed: September 2, 1992
    Date of Patent: November 23, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Muller, Wolfgang Podszun, Werner Finger
  • Patent number: 5241081
    Abstract: The invention relates to new N-alkyl-N-(meth)acryloyloxyalkylcarboxamides of aromatic carboxylic acids and aromatic carboxylic acid anhydrides, their preparation and formulations of these compounds for use as adhesives for the treatment of dental hard substance.
    Type: Grant
    Filed: August 9, 1991
    Date of Patent: August 31, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Muller, Wolfgang Podszun, Werner Finger, Jens Winkel
  • Patent number: 5028638
    Abstract: In a dental composite containing a polymerizable (meth)acrylic compound, photoinitiator, accelerator, inorganic filler and conventional auxiliaries, the improvement wherein the composite by weight comprises about(a) 10-50% of at least one monomer which contains at least 2 polymerizable (meth)acrylic acid groups,(b) 5-80% of a glass or a glass ceramic which has an average particle size of between about 0.1 and 10 .mu.m and has been post-treated with .gamma.-methacryloxypropyltrimethoxysilane up to a carbon content of between about 0.5 and 2.5% by weight,(c) 2-10% of a surface-treated microfiller and(d) 0.1-5% of a photoactivator consisting of a mixture of camphorquinone and p-dialkylaminobenzenesulphonamide. The composition has a long pot life and good surface color when cured.
    Type: Grant
    Filed: January 22, 1990
    Date of Patent: July 2, 1991
    Assignee: Bayer Aktiengesellschaft
    Inventors: Renate Heid, Jens Winkel, Heiko Herold, Peter Schwabe, Werner Finger, Wolfgang Podszun
  • Patent number: 4707504
    Abstract: The use of microporous inorganic fillers in polymerizable compositions, in particular in the dental field, characterized in that the fillers have(a) an average particle size of 0.5 to 50.mu.,(b) a BET-surface area of at least 200 m.sup.2 /g,(c) a pore volume of 0.7 to 5 ml/g and(d) a pore diameter of 10 to 50 nm.Fillings made therefrom are smooth and easy to polish.
    Type: Grant
    Filed: August 6, 1985
    Date of Patent: November 17, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Walkowiak, Klaus Nehren, Wolfgang Podszun, Werner Finger