Patents by Inventor Frederik E. Riphagen

Frederik E. Riphagen 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).

  • Otorhinological delivery device
    Patent number: 7294345
    Abstract: The invention relates to an otorhinological delivery device comprising at least one pharmaceutically active agent. According to the invention the device comprises a core comprising said at least one pharmaceutically active agent wherein said core is made of an elastomer composition selected from the group consisting of poly(dimethylsiloxane), a siloxane-based elastomer comprising 3,3,3-trifluoropropyl groups attached to the Siatoms of the siloxane units, a siloxane-based elastomer comprising poly(alkylene oxide) groups and mixtures thereof, and a membrane encasing said core, said membrane being made of a same or a different elastomer composition than said core, said elastomer composition being selected from the group consisting of poly(dimethylsiloxane), a siloxane-based elastomer comprising 3,3,3-trifluoropropyl groups attached to the Siatoms of the siloxane units, a siloxane-based elastomer comprising poly(alkylene oxide) groups and mixtures thereof.
    Type: Grant
    Filed: January 14, 2004
    Date of Patent: November 13, 2007
    Assignee: Schering Oy
    Inventors: Timo Haapakumpu, Harri Jukarainen, Juha Ala-Sorvari, Henry Rankonen, Frederik E. Riphagen, Wolfgang Arnold