Patents by Inventor Hermann Ascherl

Hermann Ascherl 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).

  • Active ingredient-containing floating forms comprising polyvinyl acetate and polyvinylpyrrolidone, their use and production
    Patent number: 6635279
    Abstract: The present invention relates to oral dosage forms comprising a) one or more active ingredients b) a formulated mixture of polyvinyl acetate and polyvinylpyrrolidone c) where appropriate other excipients customary for producing the dosage form, wherein they float on gastric fluid and display delayed release of active ingredient, and to the use and production thereof.
    Type: Grant
    Filed: March 20, 2001
    Date of Patent: October 21, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl Kolter, Michael Schönherr, Hermann Ascherl
  • Active ingredient-containing floating forms comprising polyvinyl acetate and polyvinylpyrrolidone, their use and production
    Publication number: 20030021846
    Abstract: The present invention relates to oral dosage forms comprising
    Type: Application
    Filed: March 20, 2001
    Publication date: January 30, 2003
    Inventors: Karl Kolter, Michael Schonherr, Hermann Ascherl
  • Process for producing solid oral dosage forms with sustained release of active ingredient
    Publication number: 20020012701
    Abstract: The present invention relates to a process for producing solid oral dosage forms with sustained release of active ingredient, comprising at least one active ingredient, a preformulated mixture of polyvinyl acetate and polyvinylpyrrolidone, where appropriate, water-soluble polymers or lipophilic additives and, where appropriate, other conventional excipients, wherein this mixture or parts of this mixture are granulated by heating to from 40° C. to 130° C., and the granules are, after admixture with conventional excipients, subsequently tabletted.
    Type: Application
    Filed: June 5, 2001
    Publication date: January 31, 2002
    Inventors: Karl Kolter, Dieter Flick, Hermann Ascherl
  • Solid oral dosage forms with delayed release of active ingredient and high mechanical stability
    Publication number: 20010038852
    Abstract: The present invention relates to oral dosage forms with delayed release of active ingredient and high mechanical stability, comprising
    Type: Application
    Filed: March 20, 2001
    Publication date: November 8, 2001
    Inventors: Karl Kolter, Michael Schonerr, Hermann Ascherl
  • Preparation of a crystalline solid from glycine-N,N-diacetic acid derivatives with sufficiently low hygroscopicity
    Patent number: 5981798
    Abstract: A crystalline solid which has a sufficiently low hygroscopicity for processing and use and essentially consists of glycine-N,N-diacetic acid derivatives is prepared by adjusting the water content of the starting material containing the glycine-N,N-diacetic acid derivatives to a value of from 10 to 30% by weight, based on the starting material, and subsequently bringing about crystallization.
    Type: Grant
    Filed: November 5, 1997
    Date of Patent: November 9, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Schonherr, Matthias Rauls, Hermann Ascherl, Thomas Letzelter, Dieter Baumann, Birgit Potthoff-Karl