Patents by Inventor Ragnar Ek

Ragnar Ek 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: 20080132456
    Abstract: A pharmaceutical composition comprises a pharmaceutically effective amount of an active ingredient and low crystallinity cellulose having a crystallinity index of less than about 75% as measured by X-ray diffraction. The compositions advantageously may be provided in tablet form or granulate form and provide good stability against moisture degradation.
    Type: Application
    Filed: December 9, 2005
    Publication date: June 5, 2008
    Inventors: Ragnar Ek, Maria Stromme, Albert Mihranyan
  • Publication number: 20070003487
    Abstract: A pharmaceutical composition, constituting a spray suspension includes at least one liquid excipient and at least one solid excipient substantially insoluble in the liquid excipient, and at least one pharmaceutical active ingredient. A method of preparing porous suspension particles includes: a) wet-milling or dry-milling the solid excipient(s) or a mixture of at least one active ingredient and a solid excipient(s) in a milling equipment inducing essentially compression and shear forces, resulting in fine particulate quality, where more than 90% by weight is smaller than 5 m; b) drying and aggregating the product of step a) alone or with the addition of at least one active ingredient, in fine particulate form, which will produce essentially isodiametrical aggregate particles. A suspension particles obtainable by the method pharmaceutical preparation, utilising the composition or porous suspension particles and a method for treatment of disorders using the preparation are disclosed.
    Type: Application
    Filed: April 16, 2004
    Publication date: January 4, 2007
    Inventor: Ragnar Ek
  • Publication number: 20050053665
    Abstract: Nicotine-containing pharmaceutical compositions wherein nicotine is absorbed into and/or adsorbed onto cellulose of non-seed organism origin, especially cellulose from algae, bacteria and/or fungi.
    Type: Application
    Filed: September 7, 2004
    Publication date: March 10, 2005
    Inventors: Ragnar Ek, Albert Mihranyan, Sven-Borje Andersson, Bengt Bosson, Nils-Olof Lindberg
  • Patent number: 5804217
    Abstract: Porous cellulose matrices with a defined particle size and a significantly higher porosity (i.e. pore volume) than conventional formulations, such as pellet formulations containing cellulose and binders are prepared. The cellulose is mechanically treated with low adhesion to the process equipment during a controlled gradual addition of an aqueous based fluid, optionally containing a surface-active ingredient, into regular particles, which are finally dried to obtain dry porous cellulose matrices. The so obtained matrices can be used as carriers for bioactive substances in multiple-unit preparations or tablets.
    Type: Grant
    Filed: October 11, 1995
    Date of Patent: September 8, 1998
    Assignee: Pharmacia & Upjohn Aktiebolag
    Inventors: Seth Bjork, Ragnar Ek, Gert Ragnarsson