Patents by Inventor Wolfgang Knogler

Wolfgang Knogler 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: 4883071
    Abstract: The intravaginal device is comprised of a plastic body (2) wherein a drug is contained. Said device may be particularly used for contraception. A support (8) is arranged into the body which is formed of a preferably cylindrical block of plastic foam. It has an opening (15) parallel and preferably centered to the axis of the cylinder forming the block. This opening may preferably be a blind hole. The support is arranged in the opening. Said support is connected with the body by means of an element embedded in the foam. The invention also discloses a method for handling said device as well as a handling device for implementing the method for introducing, respectively removing said device.
    Type: Grant
    Filed: January 4, 1989
    Date of Patent: November 28, 1989
    Inventors: Ewald Pickhard, Wolfgang Knogler