Patents by Inventor Bruno Hofer

Bruno Hofer 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).

  • Copolymers and their use for treating flexible substrates
    Patent number: 7601397
    Abstract: Copolymers prepared by copolymerization of (a) a total of from 3.5 to 20% by weight of at least one polymerizable acid selected from (a1) ethylenically unsaturated C3-C10-monocarboxylic acid and (a2) ethylenically unsaturated C4-C10-dicarboxylic acid or their anhydrides, (b) from 4 to 10% by weight of at least one compound of the general formula I ?the sum of (a) and (b) being in the range from 7.5 to 24% by weight, (c) from 60 to 92.5% by weight of at least one compound of the general formula II (d) from 0 to 0.
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: October 13, 2009
    Assignee: BASF Aktiengeselschaft
    Inventors: Holger Schoepke, Stefan Adams, Helfried Scheidl, Bruno Hofer
  • Medical handpiece having a clamping sleeve for a tool
    Patent number: 7416411
    Abstract: A medical handpiece having an elongate grip part, in the forward end region of which a clamping sleeve is rotatably mounted, in which sleeve a shaft of a tool can be inserted and clamped, wherein the clamping sleeve has at least one axial clamping slot and in its longitudinal region a constriction section with a reduced inner cross-section and in the longitudinal region is surrounded by a sleeve receiving space. In order to improve the tool clamping the outer form of the clamping sleeve is, in the region of the constriction section, so configured that through the insertion of the shaft it forms a barrel-like outward bulge and in that the sleeve receiving space is in cross-section the same size or larger than the barrel-like output bulge.
    Type: Grant
    Filed: January 18, 2005
    Date of Patent: August 26, 2008
    Assignee: Kaltenbach & Voigt GmbH
    Inventors: Bruno Hofer, Uwe Mohn
  • Copolymers And Their Use For Treating Flexible Substrates
    Publication number: 20070254108
    Abstract: Copolymers prepared by copolymerization of (a) a total of from 3.5 to 20% by weight of at least one polymerizable acid selected from (a1) ethylenically unsaturated C3-C10-monocarboxylic acid and (a2) ethylenically unsaturated C4-C10-dicarboxylic acid or their anhydrides, (b) from 4 to 10% by weight of at least one compound of the general formula I the sum of (a) and (b) being in the range from 7.5 to 24% by weight, (c) from 60 to 92.5% by weight of at least one compound of the general formula II (d) from 0 to 0.
    Type: Application
    Filed: June 2, 2005
    Publication date: November 1, 2007
    Applicant: BASF Aktiengesellschaft
    Inventors: Holger Schopke, Stefan Adams, Helfried Scheidl, Bruno Hofer
  • Aqueous polyurethane preparations
    Patent number: 7223478
    Abstract: Aqueous polyurethane formulations, their use and substrates which are coated with such formulations are described.
    Type: Grant
    Filed: May 2, 2003
    Date of Patent: May 29, 2007
    Assignee: BASF Aktiengesellschaft
    Inventors: Reinhard Treiber, Karl Haeberle, Klaus Dieter Hoerner, Rudolf Bingemann, Bruno Hofer
  • Medical handpiece having a clamping sleeve for a tool
    Publication number: 20060024643
    Abstract: A medical handpiece having an elongate grip part, in the forward end region of which a clamping sleeve is rotatably mounted, in which sleeve a shaft of a tool can be inserted and clamped, wherein the clamping sleeve has at least one axial clamping slot and in its longitudinal region a constriction section with a reduced inner cross-section and in the longitudinal region is surrounded by a sleeve receiving space. In order to improve the tool clamping the outer form of the clamping sleeve is, in the region of the constriction section, so configured that through the insertion of the shaft it forms a barrel-like outward bulge and in that the sleeve receiving space is in cross-section the same size or larger than the barrel-like output bulge.
    Type: Application
    Filed: January 18, 2005
    Publication date: February 2, 2006
    Inventors: Bruno Hofer, Uwe Mohn
  • Aqueous polyurethane preparations
    Publication number: 20050209425
    Abstract: Aqueous polyurethane formulations, their use and substrates which are coated with such formulations are described.
    Type: Application
    Filed: May 2, 2003
    Publication date: September 22, 2005
    Applicant: BASF Aktiengesellshaft
    Inventors: Reinhard Treiber, Karl Haberle, Klaus Horner, Rudolf Bingemann, Bruno Hofer
  • Polyurethane dispersions and use thereof
    Publication number: 20040236011
    Abstract: The present invention relates to a process for preparing the polyurethane dispersion, the dispersions being obtainable by
    Type: Application
    Filed: June 29, 2004
    Publication date: November 25, 2004
    Inventors: Karl Haeberle, Klaus Dieter Hoerner, Bruno Hofer, Reinhard Treiber, Peter Weyland