Patents Assigned to Sederma S.A.
  • Patent number: 6372717
    Abstract: The invention concerns the use of peptides of general formula R1-L-Tyr-L-Arg-R2 in which R1=H or a R3-C=0 with R3=a C1 to C20 alkyl chain, linear or branched, saturated or unsaturate, hydroxylated or not, or with R3=an aryl, aryl-alkyl or alkyloxy or aryloxy or arylalkyloxy group, and in which R2=OH or a O-R4 group with R4=a C1 to C20 alkyl chain, or R2=a NH2, NHX or NXX group with X=a C1 to C4 alkyl chain. The peptides have a soothing effect on the skin, including by topical application, and attenuates the effects of benign skin sores (after shave irritation, sunstroke, frostbite, chaps, depilation). They are used in acceptable cosmetic excipients and in effective in vivo concentrations.
    Type: Grant
    Filed: February 23, 1999
    Date of Patent: April 16, 2002
    Assignee: Sederma S.A.
    Inventor: Daniel Greff
  • Patent number: 5891428
    Abstract: A gel, in a proportion of 1 to 20% of the finished product, contains at least one polyol, one (meth)acrylic acid polymer and one fluidification solvent of general formula (1): R1--O--(R2--O--R2).sub.n,--OR3, wherein R1 is a hydrogen atom or a straight or branched C1-C5 alkyl chain, R2 is a straight or branched C1-C5 alkyl chain, R3 is a hydrogen atom or a straight or branched C1-C5 alkyl chain, and n is an integer of 1 to 200,000.
    Type: Grant
    Filed: February 18, 1998
    Date of Patent: April 6, 1999
    Assignee: Sederma S.A.
    Inventor: Daniel Greff