Patents by Inventor Erich Kobel

Erich Kobel 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).

  • Stopper for two-chamber mixing syringe
    Patent number: 4153057
    Abstract: A two-chamber syringe assembly for medicinal purposes consisting of a piston syringe having a chamber for a liquid; a container as a second chamber for a solid or another liquid; a stopper with an axial bore connecting the syringe to the vial; and a second stopper sealing the axial bore and adapted to be ejected with the liquid in the syringe into the container by inward activation of the piston of the syringe.
    Type: Grant
    Filed: July 5, 1977
    Date of Patent: May 8, 1979
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventor: Erich Kobel
  • Two-chamber mixing syringe
    Patent number: 4048999
    Abstract: A two-chamber syringe assembly for medicinal purposes consisting of a piston syringe having a chamber for a liquid; a container as a second chamber for a solid or another liquid; a stopper with an axial bore connecting the syringe to the vial; and a second stopper sealing the axial bore and adapted to be ejected with the liquid in the syringe into the container by inward activation of the piston of the syringe.
    Type: Grant
    Filed: July 12, 1976
    Date of Patent: September 20, 1977
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventor: Erich Kobel