Patents by Inventor Michael E. Chlebowski

Michael E. Chlebowski 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: 5834660
    Abstract: Systems, processes and devices are provided which are useful for testing blood or plasma donations to detect those specific donations which are contaminated by virus above a predetermined level. An apparatus and process is described which forms individual, separately sealed, and connected sample-containing pouches from a flexible hollow tubing segment connected to a fluid donation container. The tubing segment is sealed at spaced-apart intervals along its length, with tubing segment portions in the intervals between the seals defining pouches, each of which contains a portion of a plasma sample. The contents of the pouches are formed into pools which are subsequently tested for virus contamination by a high sensitivity test such as PCR. When a pool tests positive, indicating it is contaminated by a virus, a further pouch is removed from each of the tubing segments used to form the initial pool.
    Type: Grant
    Filed: July 16, 1996
    Date of Patent: November 10, 1998
    Assignee: Alpha Therapeutic Corporation
    Inventors: John J. Whalen, Michael E. Chlebowski, Charles M. Heldebrant, H. Edward Matveld
  • Patent number: 5591573
    Abstract: Systems, processes and devices are provided which are useful for testing blood or plasma donations to detect those specific donations which are contaminated by virus above a predetermined level. An apparatus and process is described which forms individual, separately sealed, and connected sample-containing pouches from a flexible hollow tubing segment connected to a fluid donation container. The tubing segment is sealed at spaced-apart intervals along its length, with tubing segment portions in the intervals between the seals defining pouches, each of which contains a portion of a plasma sample. The contents of the pouches are formed into pools which are subsequently tested for virus contamination by a high sensitivity test such as PCR. When a pool tests positive, indicating it is contaminated by a virus, a further pouch is removed from each of the tubing segments used to form the initial pool.
    Type: Grant
    Filed: April 10, 1995
    Date of Patent: January 7, 1997
    Assignee: Alpha Therapeutic Corporation
    Inventors: John J. Whalen, Michael E. Chlebowski, Charles M. Heldebrant, H. Edward Matveld