Patents by Inventor Wolfgang Stindl

Wolfgang Stindl 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: 5432170
    Abstract: A process for the production of semisolid preparations containing micronized active ingredients is described which is characterized in that a mixture of one or two nonionic surfactants with an HLB of 9 to 18 with 2.3 to 100 times the amount by weight of a fatty acid ester of general formulaR.sub.1 --COO--R.sub.2in which R.sub.1 and R.sub.2 each represent alkyl groups or alkenyl groups with 12 to 32 carbon atoms, or a mixture of these fatty acid esters is heated until it melts, the melt with stirring is put into 10 to 200 times the amount by weight of a semisolid preparation, which is heated approximately to the same temperature, the mixture is allowed to cool with stirring and mixed with the micronized active ingredient or active ingredient mixture as well as optionally with scents.
    Type: Grant
    Filed: May 17, 1993
    Date of Patent: July 11, 1995
    Assignee: Schering Aktiengesellschaft
    Inventors: Wolfgang Stindl, Erich Leitner, Johannes Tack, Erwin Dargel
  • Patent number: 5017605
    Abstract: A cosmetic preparation consists essentially of a mixture of a stable oil/water emulsion of cosmetically acceptable ingredients and a stable water/oil emulsion of cosmetically acceptable ingredients. The new preparation is prepared by mixing the two original emulsions such that a superfinely dispersed product is obtained. The particle size of the inner phases of the emulsions is 2-50 .mu.m. The preparation provides needed ingredients such as fats or moisture to skin of varying types. An example of the cosmetic preparation is a cream containing jojoba oil.
    Type: Grant
    Filed: August 3, 1989
    Date of Patent: May 21, 1991
    Assignee: Schering Wien Ges. m.b.H.
    Inventor: Wolfgang Stindl
  • Patent number: 4918065
    Abstract: A corticoid-containing pharmaceutical preparation adapted for topical application, comprising 0.005-2% by weight of a corticoid having antiinflammatory activity, a fatty phase, an aqueous phase, an emulsifier, a preservative, and, optionally, a fragrant substance, or an additional hydrophilic or lipophilic cosmetically active ingredients, wherein the fatty phase, and the aqueous phase are present in the form of a dispersed mixture of an oil/water emulsifier and a preservative, and a water/oil emulsion containing a water/oil emulsifier, the particle size of the inner phase of the emulsions being 2-50 .mu.m.
    Type: Grant
    Filed: October 17, 1988
    Date of Patent: April 17, 1990
    Assignee: Schering Aktiengesellschaft
    Inventors: Wolfgang Stindl, Ingfried Zimmerman, Renate Reckers, Hans Wendt, Rainold Arndt