Patents by Inventor Hugo Ziegler

Hugo Ziegler 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: 10094633
    Abstract: A silencer device for a firearm has a center portion including at least two substantially semi-circular chamber partition wall elements being spaced from one another in the longitudinal direction of the center portion, a housing portion into which the center portion is introduced, wherein between the at least two substantially semi-circular chamber partition wall elements and the inner wall of the housing portion at least one chamber is formed; and a positioning portion being at least connectable to the housing portion. The at least two substantially semi-circular chamber partition wall elements respectively comprise on their outer sides at least one chamfer, which form a lateral passage for explosive gases with the inner wall of the housing portion.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: October 9, 2018
    Inventors: Werner Bertschinger, Hugo Ziegler
  • Publication number: 20160238335
    Abstract: A silencer device for a firearm has a center portion including at least two substantially semi-circular chamber partition wall elements being spaced from one another in the longitudinal direction of the center portion, a housing portion into which the center portion is introduced, wherein between the at least two substantially semi-circular chamber partition wall elements and the inner wall of the housing portion at least one chamber is formed; and a positioning portion being at least connectable to the housing portion. The at least two substantially semi-circular chamber partition wall elements respectively comprise on their outer sides at least one chamfer, which form a lateral passage for explosive gases with the inner wall of the housing portion.
    Type: Application
    Filed: February 10, 2016
    Publication date: August 18, 2016
    Inventors: Werner Bertschinger, Hugo Ziegler
  • Patent number: 9060945
    Abstract: The present invention relates to a novel composition comprising danielone and derivatives thereof as well as to the use of such compositions in skin lightening. More particularly, the present invention relates to danielone and derivatives thereof for use in topical compositions for smoothening skin color irregularities, for reducing melanin formation in the human skin, for lightening/brightening human skin and/or for treatment of pigmentation disorders which comprises topically administering an effective amount of danielone and derivatives thereof to the appropriate skin area of a person in need of such beautifying agent, or treatment.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: June 23, 2015
    Assignee: DSM IP ASSETS B.V.
    Inventors: Remo Campiche, Piero Geotti-Bianchini, Hugo Ziegler, Stefan Martin Stoeckli
  • Publication number: 20150004108
    Abstract: The present invention relates to a novel composition comprising danielone and derivatives thereof as well as to the use of such compositions in skin lightening. More particularly, the present invention relates to danielone and derivatives thereof for use in topical compositions for smoothening skin color irregularities, for reducing melanin formation in the human skin, for lightening/brightening human skin and/or for treatment of pigmentation disorders which comprises topically administering an effective amount of danielone and derivatives thereof to the appropriate skin area of a person in need of such beautifying agent, or treatment.
    Type: Application
    Filed: December 28, 2012
    Publication date: January 1, 2015
    Inventors: Remo Campache, Piero Geotti-Bianchini, Hugo Ziegler
  • Patent number: 8722852
    Abstract: Cosmetic composition which can be applied topically, comprising at least one compound of the general formula (I) in which R1 is H, C1-C20-alkyl, cycloalkyl or aryl-C1-C4-alkyl, n is 1-4, X is —O—, —NH— or —NR2— and R2H or C1-C20-alkyl; and at least one compound corresponding to the above formula (I) but in which XR1 with X having the possible meaning of —NH— is the residue of an alpha-amino acid; use of these compounds and of the composition for stimulating the synthesis of the proteins of the basement membrane; and also both those compounds of the formula (I) in which X is —NR2— and both R1 and R2 are different from H, and the compounds corresponding to formula (I) but in which XR1 with X having the possible meaning of —NH— is the residue of an alpha-amino acid, as such.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: May 13, 2014
    Assignee: DSM IP Assets B.V.
    Inventors: Hugo Ziegler, Dominik Imfeld, Martin Stockli, Marc Heidl
  • Patent number: 8642761
    Abstract: The present invention describes a method for the synthesis of enantiomerically pure 3-amidinophenylalanine derivatives, which are used as pharmaceutically effective urokinase inhibitors, by starting from 3-cyanophenylalanine derivatives. The methods of manufacture comprising only one synthesis step lead to new intermediates, namely 3-hydroxyamidino- and 3-amidrazonophenylalanine derivatives. These intermediates or their acetyl derivatives can be reduced into the desired 3-amidino-phenylalanine derivatives under gentle conditions (H2 or ammonium formiate, Pd/C (approx. 10%), ethanol/water, room temperature, normal pressure or also H2, Pd/C, AcOH or HCl/ethanol, 1-3 bar) in excellent yields and in an enantiomeric excess of up to 99.9%.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: February 4, 2014
    Assignee: Wilex AG
    Inventors: Hugo Ziegler, Peter Wikstroem
  • Patent number: 8541361
    Abstract: The present invention relates to compositions comprising a peptide with 2-12 amino acids substituted with a lipophilic moiety and a water soluble salt of an alkali, earth alkaline metal or transition metal. Furthermore, the invention relates to a container comprising such compositions. Additionally, the invention relates to the use of a water soluble salt of an alkali, earth alkaline metal or transition metal for reducing the adhesion of a peptide with 2-12 amino acids substituted with a lipophilic moiety to a surface.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: September 24, 2013
    Assignee: DSM IP Assets B.V.
    Inventors: Marc Heidl, Roman Wille, Hugo Ziegler
  • Patent number: 8420778
    Abstract: The invention relates to compounds and to the cosmetically acceptable salts thereof, which correspond to general formula (I), wherein: R1 represents H, —C(O)—R6, —SO2—R6 or —C(O)—XR6; R2 and R4, independent of one another, represent (CH2)n—NH2 or (CH2)3—NHC(NH)NH2; n equals 1 4; R3 represents linear or branched C1-C4 alkyl that is optionally substituted by hydroxy; R5 and R6, independent of one another, represent hydrogen, optionally substituted (C1-C24)alkyl, optionally substituted C2-C24 alkenyl, optionally substituted phenyl, optionally substituted phenyl-C1-C4 alkyl or 9-fluorenyl-methyl; X represents oxygen (—O—) or NH—; or XR5 with X?O also represents the esters of a-tocopherol, tocotrienol or retinol, with the provision that R1 and R5 do not represent hydrogen and X does not represent oxygen at the same time. The invention also relates to the production of the compounds of general formula (I) and to a cosmetically active composition that contains at least one compound of formula (I).
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: April 16, 2013
    Assignee: DSM IP Assets B.V.
    Inventors: Hugo Ziegler, Marc Heidl, Dominik Imfeld
  • Publication number: 20130012686
    Abstract: Cosmetic composition which can be applied topically, comprising at least one compound of the general formula (I) in which R1 is H, C1-C20-alkyl, cycloalkyl or ary1-C1-C4-alkyl, n is 1-4, X is —O—, —NH— or —NR2— and R2H or C1-C20-alkyl; and at least one compound corresponding to the above formula (I) but in which XR1 with X having the possible meaning of —NH— is the residue of an alpha-amino acid; use of these compounds and of the composition for stimulating the synthesis of the proteins of the basement membrane; and also both those compounds of the formula (I) in which X is —NR2— and both R1 and R2 are different from H, and the compounds corresponding to formula (I) but in which XR1 with X having the possible meaning of —NH— is the residue of an alpha-amino acid, as such.
    Type: Application
    Filed: September 13, 2012
    Publication date: January 10, 2013
    Applicant: DSM IP ASSETS B.V.
    Inventors: Hugo ZIEGLER, Dominik IMFELD, Martin STOCKLI, Marc HEIDL
  • Patent number: 8293712
    Abstract: Cosmetic composition which can be applied topically, comprising at least one compound of the general formula (I) in which R1 is H, C1-C20-alkyl, cycloalkyl or aryl-C1-C4-alkyl, n is 1-4, X is —O—, —NH— or —NR2— and R2H or C1-C20-alkyl; and at least one compound corresponding to the above formula (I) but in which XR1 with X having the possible meaning of —NH— is the residue of an alpha-amino acid; use of these compounds and of the composition for stimulating the synthesis of the proteins of the basement membrane; and also both those compounds of the formula (I) in which X is —NR2— and both R1 and R2 are different from H, and the compounds corresponding to formula (I) but in which XR1 with X having the possible meaning of —NH— is the residue of an alpha-amino acid, as such.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: October 23, 2012
    Assignee: DSM IP Assets B.V.
    Inventors: Hugo Ziegler, Dominik Imfeld, Martin Stöckli, Marc Heidl
  • Publication number: 20120177710
    Abstract: Topical composition for use especially as a skin lightener, characterized in that it contains an effective amount of at least one compound of general formula (I) or a mixture of such compounds and/or an acid addition salt thereof: in which X is NH or a direct bond and n is 2, 3 or 4, preferably 2 or 3, and its use for lightening skin colour, for depigmenting liver spots and for evening out non-uniformities in skin colouration. The invention further relates to dermatologically effective compositions containing at least one disulfide of general formula (I) and at least one additional skin care ingredient.
    Type: Application
    Filed: March 21, 2012
    Publication date: July 12, 2012
    Applicant: DSM IP ASSETS B.V.
    Inventors: Hugo ZIEGLER, Peter Wikstroem, Martin Stöckli
  • Publication number: 20120129786
    Abstract: The present invention relates to compositions comprising a peptide with 2-12 amino acids substituted with a lipophilic moiety and a water soluble salt of an alkali, earth alkaline metal or transition metal. Furthermore, the invention relates to a container comprising such compositions. Additionally, the invention relates to the use of a water soluble salt of an alkali, earth alkaline metal or transition metal for reducing the adhesion of a peptide with 2-12 amino acids substituted with a lipophilic moiety to a surface.
    Type: Application
    Filed: April 23, 2010
    Publication date: May 24, 2012
    Applicant: DSM IP Assets B.V.
    Inventors: Marc Heidl, Roman Wille, Hugo Ziegler
  • Publication number: 20120094919
    Abstract: The present invention relates to the use of tripeptide derivatives for tightening, firming and/or moisturizing skin. Furthermore, the invention relates to a method for stimulating the synthesis of glycosaminoglycans containing a D-glucosamine and/or N-acetyl-D-glucosamine residue and/or proteoglycans by fibroblasts and/or keratinocytes such as in particular the synthesis of Hyaluronic acid and/or of the proteoglycans Decorin and/or Lumican.
    Type: Application
    Filed: March 16, 2010
    Publication date: April 19, 2012
    Inventors: Remo Gräub, Marc Heidl, Dominik Imfeld, Eike Müller, Peter Wikstroem, Hugo Ziegler
  • Publication number: 20120065398
    Abstract: The present invention describes a method for the synthesis of enantiomerically pure 3-amidinophenylalanine derivatives, which are used as pharmaceutically effective urokinase inhibitors, by starting from 3-cyanophenylalanine derivatives. The methods of manufacture comprising only one synthesis step lead to new intermediates, namely 3-hydroxyamidino- and 3-amidrazonophenylalanine derivatives. These intermediates or their acetyl derivatives can be reduced into the desired 3-amidino-phenylalanine derivatives under gentle conditions (H2 or ammonium formiate, Pd/C (approx. 10%), ethanol/water, room temperature, normal pressure or also H2, Pd/C, AcOH or HCl/ethanol, 1-3 bar) in excellent yields and in an enantiomeric excess of up to 99.9%.
    Type: Application
    Filed: November 18, 2011
    Publication date: March 15, 2012
    Applicant: Wilex AG
    Inventors: Hugo Ziegler, Peter Wikstroem
  • Patent number: 8088921
    Abstract: The present invention describes a method for the synthesis of enantiomerically pure 3-amidinophenylalanine derivatives, which are used as pharmaceutically effective urokinase inhibitors, by starting from 3-cyanophenylalanine derivatives. The methods of manufacture comprising only one synthesis step lead to new intermediates, namely 3-hydroxyamidino- and 3-amidrazonophenylalanine derivatives. These intermediates or their acetyl derivatives can be reduced into the desired 3-amidino-phenylalanine derivatives under gentle conditions (H2 or ammonium formiate, Pd/C (approx. 10%), ethanol/water, room temperature, normal pressure or also H2, Pd/C, AcOH or HCl/ethanol, 1-3 bar) in excellent yields and in an enantiomeric excess of up to 99.9%.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: January 3, 2012
    Assignee: Wilex AG
    Inventors: Hugo Ziegler, Peter Wikstroem
  • Publication number: 20110177140
    Abstract: This invention relates to the use of 4-amidino benzylamine derivatives as cosmetic ingredients and to cosmetic compositions, as well as to non-therapeutic methods for the cosmetic treatment of the skin and the scalp. Said derivatives and compositions can be used as urokinase inhibitors to prevent and restore damage of the epidermal barrier. Barrier abnormalities and disruptions respectively are often the starting point of a dry skin state, of itching, of dandruff and of the perception of sensitive skin. These 4-amidino benzylamine derivatives can be used for topical skin and scalp care applications in form of creams, lotions, gels, shampoos and the like.
    Type: Application
    Filed: August 31, 2007
    Publication date: July 21, 2011
    Inventors: Rainer Voegeli, Hugo Ziegler, Mathias Gempeler
  • Patent number: 7964630
    Abstract: The compounds of formula (I) wherein X represents a bond or NH—CH(C?O)—(CH2)3+n—NH—R5, n represents 0, 1 or 2, R1, R4 and R5—independently from each other—represent hydrogen, possibly substituted C1-C6-alkyl, amidino or tetra-C1-C6-alkylamidinium, R2 represents hydrogen or possibly substituted C1-C6-alkyl or R1 and R2 together with the residue to which they are bound represent a 5- to 7-membered, saturated ring, R3 represents C1-C12-alkoxy, C1-C12-alkylamino, possibly substituted aryl-C1-C6-alkylamino, possibly substituted heteroaryl-C1-C6-alkylamino, possibly substituted aryl-C1-C6-alkoxy or possibly substituted heteroaryl-C1-C6-alkoxy, and R6 represents hydrogen or, when n is 1, also amino or together with R1 and the residue to which R6 and R1 are bound a 5- to 7-membered, saturated ring, as well as their physiologically acceptable salts are new.
    Type: Grant
    Filed: November 1, 2005
    Date of Patent: June 21, 2011
    Assignee: DSM IP Assets B.V.
    Inventors: Dominic Imfeld, Hugo Ziegler, Peter Wikstroem
  • Publication number: 20110142895
    Abstract: The invention relates to compounds and to the cosmetically acceptable salts thereof, which correspond to general formula (I), wherein: R1 represents H, —C(O)—R6, —SO2—R6or —C(O)—XR6; R2 and R4, independent of one another, represent (CH2)n—NH2 or (CH2)3—NHC(NH)NH2; n equals 1 4; R3 represents linear or branched C1-C4 alkyl that is optionally substituted by hydroxy; R5 and R6, independent of one another, represent hydrogen, optionally substituted (C1-C24)alkyl, optionally substituted C2-C24 alkenyl, optionally substituted phenyl, optionally substituted phenyl-C1-C4 alkyl or 9-fluorenyl-methyl; X represents oxygen (—O—) or NH—; or XR5 with X?O also represents the esters of a-tocopherol, tocotrienol or retinol, with the provision that R1 and R5 do not represent hydrogen and X does not represent oxygen at the same time. The invention also relates to the production of the compounds of general formula (I) and to a cosmetically active composition that contains at least one compound of formula (I).
    Type: Application
    Filed: November 24, 2010
    Publication date: June 16, 2011
    Applicant: DSM IP Assets B.V.
    Inventors: Hugo Ziegler, Marc Heidl, Dominik Imfeld
  • Publication number: 20110087025
    Abstract: The present invention describes a method for the synthesis of enantiomerically pure 3-amidinophenylalanine derivatives, which are used as pharmaceutically effective urokinase inhibitors, by starting from 3-cyanophenylalanine derivatives. The methods of manufacture comprising only one synthesis step lead to new intermediates, namely 3-hydroxyamidino- and 3-amidrazonophenylalanine derivatives. These intermediates or their acetyl derivatives can be reduced into the desired 3-amidino-phenylalanine derivatives under gentle conditions (H2 or ammonium formiate, Pd/C (approx. 10%), ethanol/water, room temperature, normal pressure or also H2, Pd/C, AcOH or HCl/ethanol, 1-3 bar) in excellent yields and in an enantiomeric excess of up to 99.9%.
    Type: Application
    Filed: October 15, 2010
    Publication date: April 14, 2011
    Applicant: WILEX AG
    Inventors: Hugo Ziegler, Peter Wikstroem
  • Patent number: RE46424
    Abstract: The present invention describes a method for the synthesis of enantiomerically pure 3-amidinophenylalanine derivatives, which are used as pharmaceutically effective urokinase inhibitors, by starting from 3-cyanophenylalanine derivatives. The methods of manufacture comprising only one synthesis step lead to new intermediates, namely 3-hydroxyamidino- and 3-amidrazonophenylalanine derivatives. These intermediates or their acetyl derivatives can be reduced into the desired 3-amidino-phenylalanine derivatives under gentle conditions (H2 or ammonium formiate formate, Pd/C (approx. 10%), ethanol/water, room temperature, normal pressure or also H2, Pd/C, AcOH or HCl/ethanol, 1-3 bar) in excellent yields and in an enantiomeric excess of up to 99.9%.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: June 6, 2017
    Assignee: Wilex AG
    Inventors: Hugo Ziegler, Peter Wikstroem