Patents by Inventor Alexander Theis

Alexander Theis 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: 10307343
    Abstract: The invention relates to a polymerizable dental material containing a catalyst paste (A) and a base paste (B), wherein the catalyst paste (A) contains at least one organic peroxygen compound, at least one radically polymerizable organic (meth)acrylic monomer and at least one filler, and wherein the base paste (B) contains at least one radically polymerizable organic (meth)acrylic monomer, an amine as co-initiator of the radical polymerization, at least one filler and at least one salt-like, water-soluble, powdery reduction agent dispersed therein, wherein the catalyst paste (A) and/or the base paste (B) contains at least one phase transfer catalyst that is selected from the group consisting of the ammonium, phosphonium and/or sulfonium salts that contain an inorganic or organic anion, provided that the phase transfer catalyst—in the event of organic anions—contains only those having 1-4 carbon atoms, and that anions of sulfinic acids are precluded.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: June 4, 2019
    Assignee: Kettenbach GmbH & Co. KG
    Inventors: Alexander Bublewitz, Alexander Theis
  • Publication number: 20160262987
    Abstract: The invention relates to a polymerizable dental material containing a catalyst paste (A) and a base paste (B), wherein the catalyst paste (A) contains at least one organic peroxygen compound, at least one radically polymerizable organic (meth)acrylic monomer and at least one filler, and wherein the base paste (B) contains at least one radically polymerizable organic (meth)acrylic monomer, an amine as co-initiator of the radical polymerization, at least one filler and at least one salt-like, water-soluble, powdery reduction agent dispersed therein, wherein the catalyst paste (A) and/or the base paste (B) contains at least one phase transfer catalyst that is selected from the group consisting of the ammonium, phosphonium and/or sulfonium salts that contain an inorganic or organic anion, provided that the phase transfer catalyst—in the event of organic anions—contains only those having 1-4 carbon atoms, and that anions of sulfinic acids are precluded.
    Type: Application
    Filed: March 8, 2016
    Publication date: September 15, 2016
    Inventors: Alexander Bublewitz, Alexander Theis
  • Patent number: 9381140
    Abstract: The invention relates to a polymerizable dental material containing a) at least one curable aliphatic and/or cycloaliphatic monomer system having a refractive index that is measured at 23° C. and a wavelength of 589 nm of less than or equal to 1.50 that contains at least one aliphatic and/or cycloaliphatic bis(meth)acrylate and/or at least one aliphatic and/or cycloaliphatic bis(meth)acrylamide; and b) 15 to 80% by weight relative to the total mass of the dental material of at least one filler selected from the group of fused silica having a refractive index that is measured at 23° C. and a wavelength of 589 nm of 1.45 to 1.47, or cristobalite with a refractive index that is measured at 23° C. and a wavelength of 589 nm of 1.48 to 1.49, or combinations thereof. The radically polymerizable dental material has excellent storage properties and is formulated, in particular, as a two-component mixture containing components A and B.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: July 5, 2016
    Assignee: Kettenbach GmbH & Co. KG
    Inventors: Alexander Bublewitz, Jens-Peter Reber, Alexander Theis
  • Patent number: 9114079
    Abstract: A polymerizable dental material containing reactive paste-forming agent hardened dental material and the use thereof.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: August 25, 2015
    Assignee: Kettenbach GmbH & Co. KG
    Inventors: Alexander Bublewitz, Alexander Theis, Jens-Peter Reber
  • Publication number: 20150231041
    Abstract: The invention relates to a polymerizable dental material containing a) at least one curable aliphatic and/or cycloaliphatic monomer system having a refractive index that is measured at 23° C. and a wavelength of 589 nm of less than or equal to 1.50 that contains at least one aliphatic and/or cycloaliphatic bis(meth)acrylate and/or at least one aliphatic and/or cycloaliphatic bis(meth)acrylamide; and b) 15 to 80% by weight relative to the total mass of the dental material of at least one filler selected from the group of fused silica having a refractive index that is measured at 23° C. and a wavelength of 589 nm of 1.45 to 1.47, or cristobalite with a refractive index that is measured at 23° C. and a wavelength of 589 nm of 1.48 to 1.49, or combinations thereof. The radically polymerizable dental material has excellent storage properties and is formulated, in particular, as a two-component mixture containing components A and B.
    Type: Application
    Filed: August 30, 2013
    Publication date: August 20, 2015
    Inventors: Alexander Bublewitz, Jens-Peter Reber, Alexander Theis
  • Publication number: 20130225699
    Abstract: A polymerizable dental material with reactive paste-forming agent, hardened dental material and the use thereof. A polymerizable dental material containing at least one paste-like component A and at least one paste-like component B is described, whereby component A contains at least one initiator of the radical polymerization c) selected from the group of barbituric acid derivatives and/or of malonyl sulfamides, and whereby component B contains an organic compound d) comprising at least one acrylic acid ester and/or methacrylic acid ester, at least one metal compound e) and at least one halide and/or pseudo halide compound f). The polymerizable dental material is characterized in that component A as reactive paste-forming agent contains at least one organic compound a) derived from maleic acid and/or fumaric acid and/or itaconic acid, and/or at least one compound comprising at least one allyl and/or methallyl residue b).
    Type: Application
    Filed: September 23, 2011
    Publication date: August 29, 2013
    Applicant: KETTENBACH GMBH & CO. KG
    Inventors: Alexander Bublewitz, Alexander Theis, Jens-Peter Reber