Patents by Inventor Stefan Zurcher

Stefan Zurcher 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: 8951630
    Abstract: The invention relates to a novel ultra-thin hydrophobic and oleophobic layer, formed by self-assembly on a solid substrate surface, of compounds of the general formula A-B in which A represents a group of the formula in which Z represents C or N+, X represents C—H or C-L, L being an electron-attracting group selected from F, Cl, Br, I, CF3, NO2 and N(CH3)3+, Y represents H or CH3, or Y forms a 5- or 6-atom heterocycle with X, T represents NH, CO, CONH or NH2+U?, U? being a soluble anion, and B represents an unsubstituted C1-C20 linear aliphatic alkyl group, or a C1-C20 linear aliphatic alkyl group partially or completely substituted with F, and a method of preparing this layer and its use as an epilame or barrier film.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: February 10, 2015
    Assignees: Rolex S.A., Susos, AG
    Inventors: Samuele Tosatti, Stefan Zürcher
  • Patent number: 8568872
    Abstract: Described are compounds that are capable of forming adlayers, the compounds comprising at least one headgroup A, an optional linker B, a polymer C, a terminal group D and an optional crosslinking group R, wherein the headgroup A is a compound of the following formula wherein X is independently selected from an acidic group, Y is a group derived from a convenient coupling group, Z1, Z3, and Z4 are C or N+ Z2, Z5 and Z6 are C-L1 or N+-L, wherein L1 is H or an electron withdrawing group, L is C1-C6 alkyl, in particular C1-C4 alkyl L2 and L3 are independently selected from H or C1-C6 alkyl, or L2 may form together with L1 or L of Z6 a heterocycle, in particular a positively charged heterocycle, n is 0, or 1, or 2, or 3, m is 0 or 1.
    Type: Grant
    Filed: August 24, 2005
    Date of Patent: October 29, 2013
    Assignee: Eth Zurich
    Inventors: Marcus Textor, Stefan Zürcher, Karl Gademann, Samuele Tosatti
  • Publication number: 20120088099
    Abstract: The invention relates to a novel ultra-thin hydrophobic and oleophobic layer, formed by self-assembly on a solid substrate surface, of compounds of the general formula A-B in which A represents a group of the formula in which Z represents C or N+, X represents C—H or C-L, L being an electron-attracting group selected from F, Cl, Br, I, CF3, NO2 and N(CH3)3+, Y represents H or CH3, or Y forms a 5- or 6-atom heterocycle with X, T represents NH, CO, CONH or NH2+U?, U? being a soluble anion, and B represents an unsubstituted C1-C20 linear aliphatic alkyl group, or a C1-C20 linear aliphatic alkyl group partially or completely substituted with F, and a method of preparing this layer and its use as an epilame or barrier film.
    Type: Application
    Filed: December 12, 2011
    Publication date: April 12, 2012
    Applicants: SUSOS AG, ROLEX S.A.
    Inventors: Samuele Tosatti, Stefan Zürcher
  • Publication number: 20100098926
    Abstract: The invention relates to a novel ultra-thin hydrophobic and oleophobic layer, formed by self-assembly on a solid substrate surface, of compounds of the general formula A-B in which A represents a group of the formula in which Z represents C or N+, X represents C—H or C-L, L being an electron-attracting group selected from F, CF3, NO2 and N(CH3)3+, Y represents H or CH5, or Y forms a 5- or 6-atom heterocycle with X, T represents NH, CO, CONH or NH2+U?, U? being a soluble anion, and B represents a C1-C20 linear aliphatic alkyl group partially or completely substituted with F, and a method of preparing this layer and its use as a harrier film.
    Type: Application
    Filed: November 29, 2007
    Publication date: April 22, 2010
    Applicant: SuSos AG
    Inventors: Samuele Tosatti, Stefan Zurcher
  • Publication number: 20100075138
    Abstract: The invention relates to a novel ultra-thin hydrophobic and oleophobic layer, formed by self-assembly on a solid substrate surface, of compounds of the general formula A-B in which A represents a group of the formula in which Z represents C or N+, X represents C—H or C-L, L being an electron-attracting group selected from F, Cl, Br, I, CF3, NO2 and N(CH3)3+, Y represents H or CH3, or Y forms a 5- or 6-atom heterocycle with X, T represents NH, CO, CONH or NH2?U?, U? being a soluble anion such as e.g. F?, Cl?, Br?, I, OH?, NO3?, HSO4?, SO42?, CO32?, HCO3? or SCN?, and B represents an unsubstituted C1-C20 linear aliphatic alkyl group, and a method of preparing this layer and its use as an epilame.
    Type: Application
    Filed: November 29, 2007
    Publication date: March 25, 2010
    Applicant: ROLEX S.A.
    Inventors: Samuele Tosatti, Stefan Zurcher
  • Publication number: 20100068553
    Abstract: The invention relates to a novel ultra-thin hydrophobic and oleophobic layer, formed by self-assembly on a solid substrate surface, of compounds of the general formula A-B in which A represents a group of the formula in which Z represents C or N+, X represents C—H or C-L, L being an electron-attracting group selected from F, Cl, Br, I, CF3, NO2 and N(CH3)3+, Y represents H or CH3, or Y forms a 5- or 6-atom heterocycle with X, T represents NH, CO, CONH or NH2+U?, U? being a soluble anion such as e.g. F?, Cl?, Br?, I, OH?, NO3?, HSO4?, SO42?, CO32?, HCO3? or SCN?, and B represents a C1-C20 linear aliphatic alkyl group partially or completely substituted with F, and a method of preparing this layer and its use as an epilame.
    Type: Application
    Filed: November 29, 2007
    Publication date: March 18, 2010
    Applicant: ROLEX S.A.
    Inventors: Samuele Tosatti, Stefan Zurcher
  • Publication number: 20090093610
    Abstract: Described are compounds that are capable of forming adlayers, the compounds comprising at least one headgroup A, an optional linker B, a polymer C, a terminal group D and an optional crosslinking group R, wherein the headgroup A is a compound of the following formula wherein X is independently selected from an acidic group, Y is a group derived from a convenient coupling group, Z1, Z3, and Z4 are C or N+ Z2, Z5 and Z6 are C-L1 or N+-L, wherein L1 is H or an electron withdrawing group, L is C1-C6 alkyl, in particular C1-C4 alkyl L2 and L3 are independently selected from H or C1-C6 alkyl, or L2 may form together with L1 or L of Z6 a heterocycle, in particular a positively charged heterocycle, n is 0, or 1, or 2, or 3, m is 0 or 1.
    Type: Application
    Filed: August 24, 2005
    Publication date: April 9, 2009
    Inventors: Marcus Textor, Stefan Zurcher, Karl Gademann, Samuele Tosatti