Patents by Inventor Hans Ulrich Gonzenbach
Hans Ulrich Gonzenbach 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).
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Patent number: 6193959Abstract: Photostable, cosmetic light-screening compositions for the protection of the human epidermis and the hair against the ultraviolet rays of wavelengths between 290 and 400 nm comprising, in a cosmetically acceptable vehicle containing at least one fatty phase, about 0.5 to about 5%, in particular about 1 to about 4% by weight, of a dibenzoylmethane type UV-A screening agent and at least about 0.1% to about 20%, in particular about 0.Type: GrantFiled: April 16, 1997Date of Patent: February 27, 2001Assignee: Roche Vitamins Inc.Inventors: Pierclaudio Bernasconi, Hans Ulrich Gonzenbach
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Patent number: 6165451Abstract: The invention relates to cosmetic light screening compositions containinga) a compound of formula I ##STR1## wherein R.sup.1 is a C.sub.1-8 straight or branched alkyl chain, andR.sup.2 and R.sup.3 are each independently a C.sub.1-8 straight or branched alkyl chain;b) common UV-B and/or common UV-A screening agents; andc) a cosmetically acceptable carrier.Type: GrantFiled: January 31, 2000Date of Patent: December 26, 2000Assignee: Roche Vitamins Inc.Inventors: Alain Bringhen, Hans Ulrich Gonzenbach, Rolf Schwarzenbach, Dominique Sidrac
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Patent number: 6147049Abstract: The present invention provides compounds of formula I: ##STR1## wherein R.sup.1 is hydrogen or methyl and R.sup.2 is alkyl. These compounds are useful as fixatives in fragrance compositions. Processes of making such compounds are also provided.Type: GrantFiled: December 13, 1999Date of Patent: November 14, 2000Assignee: Givaudan Roure (International) SAInventors: Peter Gygax, Hans-Ulrich Gonzenbach
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Patent number: 6123929Abstract: The invention relates to a cosmetic light screening composition containing, in an aqueous phase, about 0.5% to about 10 wt % of 2-phenylbenzimidazol-sulphonic acid or a salt thereof and at least one fatty phase, including about 1% to about 30 wt % of a linear or cyclic polysiloxane compound of the general formula Ia or Ib: ##STR1## wherein x is R or A;A is a group selected from the formula IIa, IIb or IIc; ##STR2## R is hydrogen, C.sub.1-6 alkyl or phenyl; R.sup.1 and R.sup.2 are each independently hydrogen, hydroxy, C.sub.1-6 -alkyl or C.sub.1-6 -alkoxy;R.sup.3 is C.sub.1-6 -alkyl;R.sup.4 is hydrogen or C.sub.1-6 -alkyl;R.sup.5 and R.sup.6 are each independently hydrogen or C.sub.1-6 -alkyl;r is from 0 to 250;s is from 0 to 20;r+s is at least 3;t is from 0 to 10;v is from 0 to 10;v+t is at least 3;n is from 1 to 6; andwhen s is 0, at least one X is A. Methods of using such compositions are also provided.Type: GrantFiled: July 15, 1999Date of Patent: September 26, 2000Assignee: Roche Vitamins Inc.Inventors: Hans Ulrich Gonzenbach, Ulrich Huber, Rolf Schwarzenbach
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Patent number: 6069170Abstract: The invention relates to a cosmetic light-screening composition for protecting human skin or human hair against ultraviolett radiation containing at least one compound of formula I ##STR1## wherein R.sup.1 represents a C.sub.1-8 straight or branched alkyl chain, andR.sup.2 and R.sup.3 each independently represent a C.sub.1-8 straight or branched alkyl chain.Type: GrantFiled: July 24, 1998Date of Patent: May 30, 2000Assignee: Roche Vitamins Inc.Inventors: Alain Bringhen, Hans Ulrich Gonzenbach, Magali Pochon, Dominique Sidrac
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Patent number: 6048516Abstract: The invention relates to a composition which comprises a dibenzoylmethane capable of absorbing UV-A radiation and a compound of formula I ##STR1## wherein R.sup.1 and R.sup.2 are independently hydrogen, alkyl or alkoxy containing 1 to 18 carbon atoms provided that R.sup.1 and R.sup.2 are not both hydrogen; and n is 1 or 2 in an amount effective to photostabilize the dibenzolymethane, and a cosmetically acceptable carrier, and to cosmetic light-screening compositions containing at least one of the above agents, the use of the cosmetic light-screening compositions for the protection of the human skin and human hair against the ultraviolet radiation of wavelengths between about 320 and 400 nm (UV-A) and optionally also between about 290 and 400 nm (UV-B).Type: GrantFiled: July 10, 1998Date of Patent: April 11, 2000Assignee: Roche Vitamins Inc.Inventors: Alain Bringhen, Hans Ulrich Gonzenbach, Magali Pochon
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Patent number: 6033649Abstract: Photostable, cosmetic light-screening composition, comprising, in a cosmetically acceptable vehicle containing at least one fatty phase, about 0.1 to about 5%, in particular about 1 to about 3% by weight, of a dibenzoylmethane type UV-A screening agent and at least about 0.5%, in particular about 0.5 to about 4.5% by weight, of a .alpha.-cyano-.beta.,.beta.-diphenyl-acrylate stabilizer, the mole ratio of the acrylate to the dibenzoylmethane derivative being less than 0.8, if the amount of the dibenzoylmethane is 1% or more, and, optionally, at least one conventional UV-B filter.Type: GrantFiled: December 4, 1996Date of Patent: March 7, 2000Assignee: Roche Vitamins Inc.Inventors: Hans Ulrich Gonzenbach, Gilbert Pittet
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Patent number: 5985251Abstract: The invention relates to cosmetic light-screening compositions comprising at least one fatty phase anda) about 0.5 to 5 wt % of a dibenzoylmethane derivative, preferably about 0.5 to 3 wt %;b) about 0.5 to 12 wt % of a 3,3-diphenylacrylate- or benzylidene camphor derivative, preferably about 0.5 to 10 wt %; andc) about 1 to 15 wt % of a water-soluble p-methoxycinnamate derivative, preferably about 1 to 10 wt %.Type: GrantFiled: November 18, 1998Date of Patent: November 16, 1999Assignee: Roche Vitamins Inc.Inventors: Hans Ulrich Gonzenbach, Alain Bringhen, Dominique Sidrac
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Patent number: 5840282Abstract: Photostable, cosmetic light-screening compositions for the protection of the human epidermis and the hairs against the ultraviolet rays of wavelengths between 320 and 400 nm, and between 320 and 400 nm respectively, comprising, in a cosmetically acceptable vehicle containing at least one fatty phase, about 0.75 to about 5%, in particular about 1 to about 4% by weight, of a dibenzoylmethane type UV-A screening agent and at least about 0.5% to about 2%, in particular about 0.5 to about 1% by weight, of a benzylidene type stabilizer of the general formula ##STR1## represents a bridged cyclic compound having the camphor (1,7,7-trimethyl-bicyclo?2.2.1!heptan-2-one), norcamphor (bicyclo?2.2.1!heptan-2-one), nopinone (6,6-dimethyl-bicyclo?3.1.1!heptan-2-one), pinocamphone (4,6,6-trimethyl-bicyclo?3.1.1!heptan-3-one), verbanone (4,6,6-trimethyl-bicyclo?3.1.1!heptan-2-one, thujone (1-isopropyl-4-methyl-bicyclo?3.1.0!hexan-3-one) or the 4,7-methano-octahydro-inden-5-one structure, and wherein R.sup.1, R.sup.2, R.sup.Type: GrantFiled: June 13, 1996Date of Patent: November 24, 1998Assignee: Givaudan-Roure (International) SAInventors: Hans Ulrich Gonzenbach, Peter Gygax, Bernhard Hostettler, Ulrich Huber
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Patent number: 4908349Abstract: Novel odorants of the formula ##STR1## namely, 1,1,2,4,4-pentamethyl-6-formyl-1,2,3,4-tetrahydronaphthalene (1a) and 1,1,2,4,4-pentamethyl-7-formyl-1,2,3,4-tetrahydronaphthalene (1b), possess powerful, very natural-warm, musk-like odor notes.Type: GrantFiled: July 14, 1988Date of Patent: March 13, 1990Assignee: Givaudan CorporationInventor: Hans-Ulrich Gonzenbach