Patents by Inventor Franz Stab

Franz Stab 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).

  • Synergistic combinations of active substance for the cosmetic or dermatological care of the skin, hair & nails
    Patent number: 5710177
    Abstract: Cosmetic and/or dermatological active compound combinations comprisinga) an active amount of biotin and/or biotin esters,b) an active amount of one or more .alpha.-hydroxycarboxylic acids of the formulaR'(R")(OH)C COOHand/or an active amount of one or more .alpha.-ketocarboxylic acids of the formulaR'C(O) COOHor their physiologically acceptable salts or esters wherein R' and R" represent H-; branched or unbranched C.sub.1-25 -alkyl- or C.sub.1-25 -alkyl-substituted by one or more carboxyl groups and/or hydroxyl groups and/or a aldehyde groups and/or oxo groups (keto groups); phenyl- or phenyl substituted by one or more carboxyl groups and/or hydroxyl groups and/or branched and/or unbranched C.sub.1-25 -alkyl groups; or wherein the .alpha.-carbon atom of the .alpha.
    Type: Grant
    Filed: August 11, 1995
    Date of Patent: January 20, 1998
    Assignee: Beiersdorf AG
    Inventors: Gerhard Sauermann, Uwe Schonrock, Volker Schreiner, Franz Stab
  • Cosmetic and dermatological light protection formulations having an active content of cis-urocaninic acid
    Patent number: 5620680
    Abstract: The use of an active amount of cis-urocaninic acid as a light protection agent and/or antioxidant, if appropriate in a suitable galenic carrier, for cosmetic and/or dermatological purposes, the use of an active content of cis-urocaninic acid as a light protection agent and/or antioxidant in cosmetic and dermatological formulations, and the use of a mixture of cis- and trans-urocaninic acid as a light protection agent or antioxidant in cosmetic and dermatological formulations, wherein it must be ensured that at least the cis-urocaninic acid is present in an active concentration.
    Type: Grant
    Filed: September 2, 1993
    Date of Patent: April 15, 1997
    Assignee: Beiersdorf Aktiengesellschaft
    Inventors: Franz Stab, Gerhard Sauermann, Beate Uhlmann
  • Dermatological compositions containing CIS-urocaninic acid
    Patent number: 5494676
    Abstract: Dermatological compositions having an effective content of cis-urocaninic acid and/or its derivatives, the process for the produktion of such compositions and the method of use of dermatological compositions having a content of cis-urocaninic acid for the treatment and the prophylaxis of inflammatory dermatoses and for the care and restoration of senstive and stressed skin.
    Type: Grant
    Filed: May 18, 1995
    Date of Patent: February 27, 1996
    Assignee: Bode Chemie
    Inventors: Franz Stab, Udo Hoppe, Gerhard Sauermann, Walter Engel
  • Method of using cis-urocaninic acid for topically treating psoriasis
    Patent number: 5455036
    Abstract: Dermatological compositions having an effective content of cis-urocaninic acid and/or its derivatives, the process for the produktion of such compositions and the method of use of dermatological compositions having a content of cis-urocaninic acid for the treatment and the prophylaxis of inflammatory dermatoses and for the care and restoration of senstive and stressed skin.
    Type: Grant
    Filed: June 6, 1994
    Date of Patent: October 3, 1995
    Assignee: Bode Chemie
    Inventors: Franz Stab, Udo Hoppe, Gerhard Sauermann, Walter Engel