Patents by Inventor Andrew John Rocha

Andrew John Rocha 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).

  • Concentrator & Filter having protected end portion
    Patent number: 5925250
    Abstract: A fecal parasite concentrator which has a cylindrical body (20) with connections for a sample vial (24) on one end having a protective recess (27) for receiving the sample vial and a centrifuge tube (28) on the other. An integral filter (36) is disposed within the body at right angles coaxially covering the cross sectional area of the hollow body. The filter contains a series of closely spaced square openings for filtration of a liquid diluted fecal specimen. A hollow stem (40) with truncated end (44) extends upwardly from the filter having orifices (46) which permit air to pass therethrough when the diluent specimen flows through the filter.
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: July 20, 1999
    Assignee: Medical Chemical Corp.
    Inventor: Andrew John Rocha
  • Filter unit having protective vial connection
    Patent number: D407491
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: March 30, 1999
    Assignee: Medical Chemical Corp.
    Inventor: Andrew John Rocha