Patents by Inventor Charles F. Hanna

Charles F. Hanna 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).

  • Immunoassay device with liquid transfer between wells by washing
    Patent number: 5006309
    Abstract: A disposable device suitable for performing automated solid-state diagnostic assays which employs microparticles to complex an analyte and where the microparticle complex becomes retained and immobilized on a fibrous matrix such that the presence of analyte on the microparticles can be detected by an optical device.
    Type: Grant
    Filed: April 22, 1988
    Date of Patent: April 9, 1991
    Assignee: Abbott Laboratories
    Inventors: Omar S. Khalil, Charles F. Hanna, Thomas F. Zurek, Denise A. Grigalauski