Patents by Inventor Christoph NUEBOLDT

Christoph NUEBOLDT 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: 20240050370
    Abstract: The present invention provides compositions comprising a substance of a particle size between 1 ?m and 100 ?m and a solubility in water between 0.0001 g/l and 10 g/l, at least 2 wt % of at least one cellulose based polymer, at least one anionic surfactant, at least one non-ionic surfactant, wherein the non-ionic surfactant is present in an amount of non-ionic surfactant to at least one cellulose based polymer in the range of between 10:1 and 1:10, wherein the ratio of the at least one cellulose based polymer and the at least one non-ionic surfactant together to the substance is between 2:1 to 1:2, and wherein the concentration of the substance of a particle size between 1 ?m and 100 ?m and a solubility in water between 0.0001 g/l and 10 g/l is in the range of 10.1 wt % to 15 wt %. The present invention also provides methods of manufacturing the compositions.
    Type: Application
    Filed: August 15, 2023
    Publication date: February 15, 2024
    Inventors: Adrian DOBROWOLSKI, Elisabeth KERSTEN, Michael OSTENDORF, Werner HOHEISEL, Christoph NUEBOLDT
  • Publication number: 20230098132
    Abstract: What is described herein relates to a method for generating micro-particles comprising the steps of a) providing a homogenous supersaturated solution of a substance in a crystallization medium b) providing a seeding material characterized by a nano-particle size of a d50 between 10 nm and 999 nm comprising at least one stabilizer, wherein said seeding material is of the same substance as the substance of the homogenous supersaturated solution of step a) c) bringing the homogenous supersaturated solution in contact with the seeding material, optionally isolating micro-particles.
    Type: Application
    Filed: September 16, 2022
    Publication date: March 30, 2023
    Inventors: Adrian DOBROWOLSKI, Giovanni Maria MAGGIONI, Michal SOWA, Clemens BOTHE, Eva ESSER, Christoph NUEBOLDT
  • Publication number: 20230076047
    Abstract: Disclosed herein is a method for the preparation of an amorphous solid dispersion (ASD) comprising the steps of providing an aqueous suspension comprising nano-particles having a solubility in the aqueous suspension of less than 10 g/1, water and at least one polymer, nano-dry-melting of the aqueous suspension comprising nano-particles for a time span between 0.1 seconds and 300 seconds, at a temperature between a) 20 K below the glass transition temperature as determined with DSC according to DIN EN ISO 11357-2 at a heating rate of 10 K/min of the solid components of the aqueous suspension comprising nano-particles or 20 K below the glass transition temperature of the at least one polymer, depending on what is higher, b) the decomposition temperature of the at least one polymer or the decomposition temperature of the nano-particles, depending which is lower to form the amorphous solid dispersion.
    Type: Application
    Filed: January 12, 2021
    Publication date: March 9, 2023
    Inventors: Roman HEUMANN, Werner HOHEISEL, Christoph NUEBOLDT
  • Publication number: 20220370358
    Abstract: A process for producing a pharmaceutical formulation comprises the steps of: A) suspending a pharmaceutical active substance in an aqueous solution of a polymer; B) drying the mixture obtained in step A); wherein in step A) the pharmaceutical active substance is present in the form of particles having a d90 value in the particle size distribution of ?1 ?m and before step B) the pharmaceutical active substance is further contacted with an ionic surfactant.
    Type: Application
    Filed: October 5, 2020
    Publication date: November 24, 2022
    Inventors: Michael OSTENDORF, Werner HOHEISEL, Bjoern DUESENBERG, Christoph NUEBOLDT
  • Publication number: 20220347108
    Abstract: A process for producing a pharmaceutical formulation comprising the steps of: A) providing particles of a polymer, wherein particles of a pharmaceutical active substance are additionally at least partially embedded in the particles of the polymer; B) heating the particles of the polymer to a predetermined temperature for a predetermined time and C) cooling the particles of the polymer after the predetermined time to a temperature of 18° C. to 24° C., wherein the polymer is at least partially soluble in water and the active substance is at least partially soluble in the polymer. The particulate pharmaceutical active substance is present in the form of particles having a d90 value in the particle size distribution of ?1 ?m. The predetermined temperature is within a range from 10 K below the glass transition temperature (determined by DSC in accordance with DIN EN ISO 11357-2 at a heating rate of 10 K/min) of the polymer to the melting temperature of the active substance.
    Type: Application
    Filed: October 5, 2020
    Publication date: November 3, 2022
    Inventors: Michael OSTENDORF, Werner HOHEISEL, Christoph NUEBOLDT