Patents by Inventor Anja Behrens

Anja Behrens 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).

  • Nanocapsules having a polyelectrolyte envelope
    Patent number: 7763275
    Abstract: A method for the production of nano- or microcapsules having a diameter of from 20 nm to 40 ?m is suggested, wherein template particles are supplied in an aqueous medium, electrically recharged with a polyelectrolyte, re-recharged without separation or washing steps using a second polyelectrolyte having a complementary charge with respect to the first polyelectrolyte, and said process is optionally continued with alternately charged polyelectrolytes.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: July 27, 2010
    Assignee: Novosom AG
    Inventors: Steffen Panzner, Gerold Endert, Frank Essler, Anja Behrens, Silke Lutz, Cornelia Panzner
  • STEROL DERIVATIVES, LIPOSOMES COMPRISING STEROL DERIVATIVES AND METHOD OF LOADING LIPOSOMES WITH ACTIVE SUBSTANCES
    Publication number: 20080113017
    Abstract: A sterol derivative with a pKa value of between 3.5 and 8, according to the general formula cation-spacer 2-Y-spacer 1-X-sterol, wherein Y and X represent linking groups, is suggested, as well as liposomes comprising such sterol derivatives.
    Type: Application
    Filed: November 2, 2007
    Publication date: May 15, 2008
    Applicant: NOVOSOM AG
    Inventors: STEFFEN PANZNER, Gerold Endert, Stefan Fankhanel, Anja Behrens
  • Sterol derivatives, liposomes comprising sterol derivatives and method for loading liposomes with active substances
    Patent number: 7312206
    Abstract: Disclosed is a sterol derivative having a pKa value of 3.5-8 according to the general formula cation-spacer 2-Y-spacer 1-X-sterol, wherein Y and X represent bonding groups. The invention also relates to liposomes containing said sterol derivatives.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: December 25, 2007
    Assignee: Novosom AG
    Inventors: Steffen Panzner, Gerold Endert, Stefan Fankhänel, Anja Behrens
  • Sterol derivatives, liposomes comprising sterol derivatives and method for loading liposomes with active substances
    Publication number: 20040131666
    Abstract: Disclosed is a sterol derivative having a pKa value of 3.5-8 according to the general formula cation-spacer 2-Y-spacer 1-X-sterol, wherein Y and X represent bonding groups. The invention also relates to liposomes containing said sterol derivatives.
    Type: Application
    Filed: February 11, 2004
    Publication date: July 8, 2004
    Inventors: Steffan Panzner, Gerold Endert, Stefan Fankhnel, Anja Behrens
  • Nanocapsules having a polyelectrolyte envelope
    Publication number: 20030157181
    Abstract: A method for the production of nano- or microcapsules having a diameter of from 20 nm to 40 &mgr;m is suggested, wherein template particles are supplied in an aqueous medium, electrically recharged with a polyelectrolyte, re-recharged without separation or washing steps using a second polyelectrolyte having a complementary charge with respect to the first polyelectrolyte, and said process is optionally continued with alternately charged polyelectrolytes.
    Type: Application
    Filed: September 3, 2002
    Publication date: August 21, 2003
    Inventors: Steffen Panzner, Gerold Endert, Frank Essler, Anja Behrens, Silke Lutz, Cornelia Panzner