Patents by Inventor Richard R. Villeneuve

Richard R. Villeneuve 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).

  • Method and apparatus for control of flow through a filter chamber by measured chamber equilibration pressure
    Patent number: 5185084
    Abstract: A method and apparatus for the controlled instrumentation processing of cells and other paricles with a filter device measures a parameter of the flow through the filter device of a fluid carrying the particles. A measure of the change of fluid flow through the filter device yields desired information for quantizing the particles and for quantizing the obstruction of the filter device by the particles. The method and apparatus typically operate automatically.
    Type: Grant
    Filed: June 18, 1991
    Date of Patent: February 9, 1993
    Assignee: Cytyc Corporation
    Inventors: Stanley N. Lapidus, Dean Kamen, Richard R. Villeneuve, Lewis T. Polk, Jr.