Patents by Inventor Kirsten Westesen

Kirsten Westesen 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).

  • Powdery active ingredient formulations
    Publication number: 20060165742
    Abstract: Novel pulverulent active substance formulations composed of at least one active substance which is solid at room temperature, at least one dispersant, polyvinyl alcohol and if desired, additives, the individual active substance particles being enveloped by a coat of polyvinyl alcohol, being present in the amorphous state, and having diameter in the nanometer range, a process for producing the novel formulations and their use for the application of the active substance they comprise and also a device for carrying out the production process.
    Type: Application
    Filed: October 17, 2002
    Publication date: July 27, 2006
    Inventors: Karl Reizlein, Bernd Klinksiek, Jurgen Hinderer, Peter Baur, Anne Suty-Heinze, Astrid Mauler-Machnik, Heike Bunjes, Kirsten Westesen, Jonas Hinnen, Albert Hinnen
  • Solid lipid particles, particles of bioactive agents and methods for the manufacture and use thereof
    Patent number: 6207178
    Abstract: The present invention is in the area of administration forms and delivery systems for drugs, vaccines and other biologically active agents. More specifically the invention is related to the preparation of suspensions of colloidal solid lipid particles (SLPs) of predominantly anisometrical shape with the lipid matrix being in a stable polymorphic modification and of suspensions of micron and submicron particles of bioactive agents (PBAs); as well as to the use of such suspensions or the lyophilizates thereof as delivery systems primarily for the parenteral administration of preferably poorly water-soluble bioactive substances, particularly drugs, and to their use in cosmetic, food and agricultural products. SLPs and PBAs are prepared by the following emulsification process: (1) A solid lipid or bioactive agent or a mixture of solid lipids or bioactive agents is melted.
    Type: Grant
    Filed: December 3, 1998
    Date of Patent: March 27, 2001
    Assignee: Kabi Pharmacia AB
    Inventors: Kirsten Westesen, Britta Siekmann
  • Particles with modified physicochemical properties, their preparation and uses
    Patent number: 6197349
    Abstract: Particles comprising (a) a supercooled melt of a poorly water-soluble substance and (b) a stabilizing agent, which have a mean particle size of between 30 and 500 nm, and disperse compositions containing them, as administration forms and delivery systems for drugs, vaccines and other biologically active agents such as herbicides, pesticides, insecticides, fungicides, fertilizers, vitamins, nutrition additives and cosmetics.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: March 6, 2001
    Assignee: Knoll Aktiengesellschaft
    Inventors: Kirsten Westesen, Britta Siekmann
  • Solid lipid particles, particles of bioactive agents and methods for the manufacture and use thereof
    Patent number: 5885486
    Abstract: The present invention is in the area of administration forms and delivery systems for drugs, vaccines and other biologically active agents. More specifically the invention is related to the preparation of suspensions of colloidal solid lipid particles (SLPs) of predominantly anisometrical shape with the lipid matrix being in a stable polymorphic modification and of suspensions of micron and submicron particles of bioactive agents (PBAs); as well as to the use of such suspensions or the lyophilizates thereof as delivery systems primarily for the parenteral administration of preferably poorly water-soluble bioactive substances, particularly drugs, and to their use in cosmetic, food and agricultural products.SLPs and PBAs are prepared by the following emulsification process:(1) A solid lipid or bioactive agent or a mixture of solid lipids or bioactive agents is melted.
    Type: Grant
    Filed: December 2, 1996
    Date of Patent: March 23, 1999
    Assignee: Pharmaciaand Upjohn AB
    Inventors: Kirsten Westesen, Britta Siekmann
  • Solid lipid particles, particles of bioactive agents and methods for the manufacture and use thereof
    Patent number: 5785976
    Abstract: The present invention is in the area of administration forms and delivery systems for drugs, vaccines and other biologically active agents. More specifically the invention is related to the preparation of suspensions of colloidal solid lipid particles (SLPs) of predominantly anisometrical shape with the lipid matrix being in a stable polymorphic modification and of suspensions of micron and submicron particles of bioactive agents (PBAs); as well as to the use of such suspensions or the lyophilizates thereof as delivery systems primarily for the parenteral administration of preferably poorly water-soluble bioactive substances, particularly drugs, and to their use in cosmetic, food and agricultural products.SLPs and PBAs are prepared by the following emulsification process:(1) A solid lipid or bioactive agent or a mixture of solid lipids or bioactive agents is melted.
    Type: Grant
    Filed: April 12, 1994
    Date of Patent: July 28, 1998
    Assignee: Pharmacia & UpJohn AB
    Inventors: Kirsten Westesen, Britta Siekmann