Patents by Inventor Gerhard Butterbrodt

Gerhard Butterbrodt 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).

  • Patent number: 5255804
    Abstract: A tamperproof closure for a tube includes a neck projection on a neck of the tube, which neck projection is riveted to an edge of a sleeve section provided in a cap. After the neck projection has been broken off to use the tube, the cap can be replaced on the tube, however, the connection is so loose that when the tube is picked up again, the cap is immediately detached from the neck, thus indicating prior use.
    Type: Grant
    Filed: January 14, 1992
    Date of Patent: October 26, 1993
    Assignee: Schering Aktiengesellschaft
    Inventor: Gerhard Butterbrodt
  • Patent number: 5125423
    Abstract: An applicator for treating the skin dispenses a predetermined dose of treatment agent. The applicator comprises a cylindrical portion, the front face of which is open, and a closure piece for the open front face. Solid and hollow pins extend axially from a front wall of the cylindrical portion. The hollow pins communicate with the cylinder cavity. The closure piece and the cylindrical portion are designed so that the closure piece delimits a given volume in the cylindrical portion. The closure piece has a central filling opening with a non-return or one-way valve disposed therein.
    Type: Grant
    Filed: October 29, 1990
    Date of Patent: June 30, 1992
    Assignee: Schering, Aktiengesellschaft
    Inventor: Gerhard Butterbrodt