Patents by Inventor Matthias Rischer

Matthias Rischer 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).

  • Publication number: 20240009149
    Abstract: The present invention discloses a non-aqueous gel composition which is useful for administration of pharmaceutically active agents, in particular for transtympanic administration of pharmaceutically active agents. The non-aqueous gel composition comprises castor oil, present in an amount from 85 to 95% by weight, based on the total weight of the composition, an oleoyl macrogolglyceride, preferably Labrafil®, present in an amount from 2 to 6 by weight, based on the total weight of the composition, at least one thickener, preferably silicon dioxide, more preferably colloidal silicon dioxide, present in an amount from 1 to 6% by weight, based on the total weight of the composition, and wherein the viscosity of the composition at a temperature of 25° C. is between 1400 and 2400 mPas, preferably between 1400 and 1800 mPas.
    Type: Application
    Filed: November 18, 2021
    Publication date: January 11, 2024
    Applicant: Acousia Therapeutics GmbH
    Inventors: Ansgar BÖGERSHAUSEN, Lena LIEBICH, Matthias RISCHER
  • Publication number: 20230226007
    Abstract: A nanoparticulate composition including particles comprising at least one active ingredient, wherein the particles have an effective average particle size is in the range of about 70 nm to about 220 nm measured by laser light scattering method, wherein at least 50% of said active agent particles have a particle size, by weight (volume based), of less than the effective average particle size; and (b) at least one surface stabilizer and/or at least one polymeric stabilizer, wherein the composition includes (aa) particles of at least one active ingredient selected from the group consisting of (Z)-2-cyano-3-cyclopropyl-3-hydroxy-N-(3-methyl-4-(trifluoromethyl)phenyl) prop-2-enamide, (Z)-2-cyano-3-hydroxy-N-[4-(trifluoromethyl)phenyl]hept-2-en-6-ynamide, 2-cyano-3-cyclopropyl-N-(4-fluorophenyl)-3-hydroxyacrylamide, derivatives thereof, salts thereof and pro-drugs thereof, wherein the particles have an effective average particle size of less than about 2000 nm; and (bb) at least one surface stabilizer and/or at lea
    Type: Application
    Filed: June 11, 2021
    Publication date: July 20, 2023
    Inventors: Birgit Hasse, Guido Koopmans, Lena Liebich, Ansgar Bögershausen, Sandra Kneisel, Martin Hagedorn, Matthias Rischer
  • Publication number: 20180303756
    Abstract: A particulate solid composition comprises a blend of dialkyl sulfosuccinate and a water-soluble polymer. The water-soluble polymer can be a cellulose ether, a polysaccharide, a polyvinyl alcohol homopolymer or copolymer, a polyvinyl pyrrolidone homopolymer or copolymer, a polyvinyl caprolactam polymer or copolymer, a poly(meth)acrylate, a poly(alkylene oxide) graft copolymer, or a combination thereof. The particulate solid composition is free flowing, water-soluble, and dissolves rapidly in water. It can be made by drying a solution of dialkyl sulfosuccinate and a water-soluble polymer. The particulate solid composition can be mixed with organic substances having low water solubility, for example a generic, a biologic, a biosimilar, an excipient, a nutraceutical, a medical diagnostic agent, an agricultural chemical, or a combination thereof, to form water-soluble compositions.
    Type: Application
    Filed: June 27, 2018
    Publication date: October 25, 2018
    Inventors: Eric Saly, Maureen Mackay, Matthias Rischer, Wolfgang Mohr, Lena Kurz
  • Patent number: 10022328
    Abstract: A particulate solid composition comprises a blend of dialkyl sulfosuccinate and a water-soluble polymer. The water-soluble polymer can be a cellulose ether, a polysaccharide, a polyvinyl alcohol homopolymer or copolymer, a polyvinyl pyrrolidone homopolymer or copolymer, a polyvinyl caprolactam polymer or copolymer, a poly(meth)acrylate, a poly(alkylene oxide) graft copolymer, or a combination thereof. The particulate solid composition is free flowing, water-soluble, and dissolves rapidly in water. It can be made by drying a solution of dialkyl sulfosuccinate and a water-soluble polymer. The particulate solid composition can be mixed with organic substances having low water solubility, for example a generic, a biologic, a biosimilar, an excipient, a nutraceutical, a medical diagnostic agent, an agricultural chemical, or a combination thereof, to form water-soluble compositions.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: July 17, 2018
    Assignee: Cytec Industries Inc.
    Inventors: Eric Saly, Maureen Mackay, Matthias Rischer, Wolfgang Mohr, Lena Kurz
  • Publication number: 20160317445
    Abstract: A particulate solid composition comprises a blend of dialkyl sulfosuccinate and a water-soluble polymer. The water-soluble polymer can be a cellulose ether, a polysaccharide, a polyvinyl alcohol homopolymer or copolymer, a polyvinyl pyrrolidone homopolymer or copolymer, a polyvinyl caprolactam polymer or copolymer, a poly(meth)acrylate, a poly(alkylene oxide) graft copolymer, or a combination thereof. The particulate solid composition is free flowing, water-soluble, and dissolves rapidly in water. It can be made by drying a solution of dialkyl sulfosuccinate and a water-soluble polymer. The particulate solid composition can be mixed with organic substances having low water solubility, for example a generic, a biologic, a biosimilar, an excipient, a nutraceutical, a medical diagnostic agent, an agricultural chemical, or a combination thereof, to form water-soluble compositions.
    Type: Application
    Filed: February 18, 2016
    Publication date: November 3, 2016
    Inventors: Eric Saly, Maureen Mackay, Matthias Rischer, Wolfgang Mohr, Lena Kurz
  • Patent number: 7906479
    Abstract: The invention provides sterile suspensions and sterile lyophilizates of slightly soluble basic peptide complexes, and pharmaceutical formulations comprising them. The provided sterile suspensions, sterile lyophilizates and pharmaceutical formulations comprising them are particularly suitable for use in a parenteral dosage form as medicaments for the treatment and prophylaxis of diseases and pathological states in mammals, especially in humans.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: March 15, 2011
    Assignee: Zentraris GmbH
    Inventors: Matthias Rischer, Horst Mueller, Karl Werner, Juergen Engel
  • Patent number: 7871977
    Abstract: The present invention provides a novel process for producing sterile suspensions of slightly soluble basic peptide complexes. The present invention further provides a novel process for producing sterile lyophilizates of slightly soluble basic peptide complexes. In addition, a novel process for producing sterile suspensions suitable for the parenteral administration of slightly soluble basic peptide complexes is provided. The invention moreover provides sterile suspensions and sterile lyophilizates of slightly soluble basic peptide complexes, and pharmaceutical formulations comprising them. The provided sterile suspensions, sterile lyophilizates and pharmaceutical formulations comprising them are particularly suitable for use in a parenteral dosage form as medicaments for the treatment and prophylaxis of diseases and pathological states in mammals, especially in humans.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: January 18, 2011
    Assignee: Zentaris GmbH
    Inventors: Matthias Rischer, Horst Mueller, Karl Werner, Juergen Engel
  • Patent number: 7790686
    Abstract: An aqueous injectable solution of an LHRH antagonist, such as Cetrorelix, in an organic, pharmaceutically acceptable acid, such as gluconic acid.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: September 7, 2010
    Inventors: Werner Sarlikiotis, Horst Bauer, Matthias Rischer, Jürgen Engel, Frank Güthlein, Dominique Di Stefano
  • Publication number: 20080255054
    Abstract: The invention provides sterile suspensions and sterile lyophilizates of slightly soluble basic peptide complexes, and pharmaceutical formulations comprising them. The provided sterile suspensions, sterile lyophilizates and pharmaceutical formulations comprising them are particularly suitable for use in a parenteral dosage form as medicaments for the treatment and prophylaxis of diseases and pathological states in mammals, especially in humans.
    Type: Application
    Filed: April 10, 2008
    Publication date: October 16, 2008
    Applicant: ZENTARIS GmbH
    Inventors: Matthias Rischer, Horst Mueller, Karl Werner, Juergen Engel
  • Publication number: 20070161571
    Abstract: An aqueous injectable solution of an LHRH antagonist, such as Cetrorelix, in an organic, pharmaceutically acceptable acid, such as gluconic acid.
    Type: Application
    Filed: February 27, 2007
    Publication date: July 12, 2007
    Inventors: Werner Sarlikiotis, Horst Bauer, Matthias Rischer, Jurgen Engel, Frank Guthlein, Dominique Di Stefano
  • Patent number: 7214662
    Abstract: An aqueous injectable soution of an LHRH antagonist, such as Cetrorelix, in an organic, pharmaceutically acceptable acid, such as gluconic acid.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: May 8, 2007
    Assignee: Zentaris GmbH
    Inventors: Werner Sarlikiotis, Horst Bauer, Matthias Rischer, Jürgen Engel, Frank Güthlein, Dominique Di Stefano
  • Publication number: 20060135405
    Abstract: The present invention provides a novel process for producing sterile suspensions of slightly soluble basic peptide complexes. The present invention further provides a novel process for producing sterile lyophilizates of slightly soluble basic peptide complexes. In addition, a novel process for producing sterile suspensions suitable for the parenteral administration of slightly soluble basic peptide complexes is provided. The invention moreover provides sterile suspensions and sterile lyophilizates of slightly soluble basic peptide complexes, and pharmaceutical formulations comprising them. The provided sterile suspensions, sterile lyophilizates and pharmaceutical formulations comprising them are particularly suitable for use in a parenteral dosage form as medicaments for the treatment and prophylaxis of diseases and pathological states in mammals, especially in humans.
    Type: Application
    Filed: December 16, 2005
    Publication date: June 22, 2006
    Applicant: ZENTARIS GmbH
    Inventors: Matthias Rischer, Horst Mueller, Karl Werner, Juergen Engel
  • Publication number: 20030100509
    Abstract: An aqueous injectable soution of an LHRH antagonist, such as Cetrorelix, in an organic, pharmaceutically acceptable acid, such as gluconic acid.
    Type: Application
    Filed: October 23, 2002
    Publication date: May 29, 2003
    Inventors: Werner Sarlikiotis, Horst Bauer, Matthias Rischer, Jurgen Engel
  • Patent number: 6538151
    Abstract: The invention relates to novel modifications of the compound 2-amino-4-(4-fluorobenzylamino)-1-ethoxy-carbonylaminobenzene of the processes for their preparation and their use in pharmaceutical compositions.
    Type: Grant
    Filed: October 29, 1998
    Date of Patent: March 25, 2003
    Assignee: Asta Medica Aktiengesellschaft
    Inventors: Peter Meisel, Karl-Friedrich Landgraf, Jürgen Schäfer, Wilfried Thiel, Matthias Rischer, Alfred Olbrich, Bernhard Kutscher
  • Patent number: 6348490
    Abstract: Novel, advantageous dosage forms of thioctic acid and the enantiomers thereof together with thioctic acid salts are described. The pharmaceutical formulations according to the invention are used for the production of pharmaceutical dosage forms which release the active ingredient more rapidly and have greater bioavailability than previous forms.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: February 19, 2002
    Assignee: Asta Medica Aktiengesellschaft
    Inventors: Helmut Hettche, Matthias Rischer, Werner Sarlikiotis
  • Patent number: 5994393
    Abstract: The invention is relative to a thioctic acid with a predominant amount of an enantiomer and a novel modification, in the case of which the X-ray powder diffractograms show a characteristic reflex in the range of 23.4 to 22.7.degree. 2 theta(Cu) which shifts in the direction of the smaller angular values as the enantiomer content increases.
    Type: Grant
    Filed: May 8, 1998
    Date of Patent: November 30, 1999
    Assignee: ASTA Medica Aktiengesellschaft
    Inventors: Thomas Beisswenger, Gunter Laban, Karl-Friedrich Landgraf, Eberhard Oestreich, Matthias Rischer
  • Patent number: 5990152
    Abstract: Novel, advantageous dosage forms of thioctic acid and the enantiomers thereof together with thioctic acid salts are described. The pharmaceutical formulations according to the invention are used for the production of pharmaceutical dosage forms which release the active ingredient more rapidly and have greater bioavailability than previous forms.
    Type: Grant
    Filed: February 12, 1997
    Date of Patent: November 23, 1999
    Assignee: Asta Medica Aktiengesellschaft
    Inventors: Helmut Hettche, Matthias Rischer, Werner Sarlikiotis
  • Patent number: 5914425
    Abstract: The invention relates to novel modifications of the compound 2-amino-4-(4-fluorobenzylamino)-1-ethoxy-carbonylaminobenzene of the formula I ##STR1## processes for their preparation and their use in pharmaceutical compositions.
    Type: Grant
    Filed: January 9, 1998
    Date of Patent: June 22, 1999
    Assignee: ASTA Medica Aktiengesellschaft
    Inventors: Peter Meisel, Karl-Friedrich Landgraf, Jurgen Schafer, Wilfried Thiel, Matthias Rischer, Alfred Olbrich, Bernhard Kutscher