Patents by Inventor Francisco L. Cerqueira

Francisco L. Cerqueira 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).

  • Faeces collection and concentration receiver
    Patent number: 4559837
    Abstract: A faeces collection and concentration receiver, especially for parasitological examination, comprises a disposable receiver (1), a first cap immediately fastenable to the mouth of the receiver, a collecting-filtering device coupled between the receiver and the first cap, and a spout closed by a second cap.
    Type: Grant
    Filed: November 2, 1983
    Date of Patent: December 24, 1985
    Inventor: Francisco L. Cerqueira