Patents by Inventor Charles A. Festel

Charles A. Festel 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).

  • Systems and methods for generating fluid samples having select concentration of particles
    Publication number: 20040219073
    Abstract: Instruments and processes according to the invention provide for the preparation of a fluid sample that has a substantially known concentration of a select particulate matter. In one aspect, the invention is understood as laboratory instruments for sample preparation. These instruments can include a filter that is submersible within a fluid suspension of particulate matter. To collect particulate matter from the fluid suspension, the instruments can cause a fluid flow that pulls fluid across the filter to trap particulate matter against one surface of the filter. The instruments can then remove the filter from the fluid suspension and dispose the filter above a collection vessel such that the side of the filter that is carrying particulate matter is positioned above the opening of the collection vessel.
    Type: Application
    Filed: August 25, 2003
    Publication date: November 4, 2004
    Applicant: Cytyc Corporation
    Inventors: Gail E. Radcliffe, Daniel C. Lapen, Charles A. Festel
  • Methods for collecting fluid samples having select concentrations of particles
    Patent number: 6634244
    Abstract: Instruments and processes according to the invention provide for the preparation of a fluid sample that has a substantially known concentration of a select particulate matter. In one aspect, the invention is understood as laboratory instruments for sample preparation. These instruments can include a filter that is submersible within a fluid suspension of particulate matter. To collect particulate matter from the fluid suspension, the instruments can cause a fluid flow that pulls fluid across the filter to trap particulate matter against one surface of the filter. The instruments can then remove the filter from the fluid suspension and dispose the filter above a collection vessel such that the side of the filter that is carrying particulate matter is positioned above the opening of the collection vessel.
    Type: Grant
    Filed: November 12, 2001
    Date of Patent: October 21, 2003
    Assignee: Cytyc Corporation
    Inventors: Gail E. Radcliffe, Daniel C. Lapen, Charles A. Festel
  • Methods for collecting fluid samples having select concentrations of particles
    Publication number: 20020040610
    Abstract: Instruments and processes according to the invention provide for the preparation of a fluid sample that has a substantially known concentration of a select particulate matter. In one aspect, the invention is understood as laboratory instruments for sample preparation. These instruments can include a filter that is submersible within a fluid suspension of particulate matter. To collect particulate matter from the fluid suspension, the instruments can cause a fluid flow that pulls fluid across the filter to trap particulate matter against one surface of the filter. The instruments can then remove the filter from the fluid suspension and dispose the filter above a collection vessel such that the side of the filter that is carrying particulate matter is positioned above the opening of the collection vessel.
    Type: Application
    Filed: November 12, 2001
    Publication date: April 11, 2002
    Inventors: Gail E. Radcliffe, Daniel C. Lapen, Charles A. Festel
  • Systems for collecting fluid samples having select concentrations of particles
    Patent number: 6318190
    Abstract: Instruments and processes according to the invention provide for the preparation of a fluid sample that has a substantially known concentration of a select particulate matter. In one aspect, the invention is understood as laboratory instruments for sample preparation. These instruments can include a filter that is submersible within a fluid suspension of particulate matter. To collect particulate matter from the fluid suspension, the instruments can cause a fluid flow that pulls fluid across the filter to trap particulate matter against one surface of the filter. The instruments can then remove the filter from the fluid suspension and dispose the filter above a collection vessel such that the side of the filter that is carrying particulate matter is positioned above the opening of the collection vessel.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: November 20, 2001
    Assignee: Cytyc Corporation
    Inventors: Gail E. Radcliffe, Daniel C. Lapen, Charles A. Festel
  • Systems and methods for collecting fluid samples having select concentrations of particles
    Patent number: 5942700
    Abstract: Instruments and processes according to the invention provide for the preparation of a fluid sample that has a substantially known concentration of a select particulate matter. In one aspect, the invention is understood as laboratory instruments for sample preparation. These instruments can include a filter that is submersible within a fluid suspension of particulate matter. To collect particulate matter from the fluid suspension, the instruments can cause a fluid flow that pulls fluid across the filter to trap particulate matter against one surface of the filter. The instruments can then remove the filter from the fluid suspension and dispose the filter above a collection vessel such that the side of the filter that is carrying particulate matter is positioned above the opening of the collection vessel.
    Type: Grant
    Filed: November 1, 1996
    Date of Patent: August 24, 1999
    Assignee: Cytyc Corporation
    Inventors: Gail E. Radcliffe, Daniel C. Lapen, Charles A. Festel