Patents by Inventor May K. Li

May K. Li 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).

  • Magnetic separation device and methods for use in heterogeneous assays
    Patent number: 4988618
    Abstract: Magnetic separation devices are described for use in immunoassay or hybridization assay procedures. The most preferred embodiments comprise a defined relationship between microtube and microtiter plate receiving orifices and rare earth cobalt magnets having predetermined magnetic field orientations.
    Type: Grant
    Filed: May 3, 1989
    Date of Patent: January 29, 1991
    Assignee: GENE-TRAK Systems
    Inventors: May K. Li, Jack Kessler, David T. Bach
  • Methods for preparing sample nucleic acids for hybridization
    Patent number: 4983523
    Abstract: A new method for releasing sample nucleic acids from cells, bacteria and viruses comprises non-invasively sonicating the sample contained within a sample container brought into physical contact with the vibrating element of a sonicator tuned to resonate at a frequency of 40 KHz or greater.
    Type: Grant
    Filed: April 8, 1988
    Date of Patent: January 8, 1991
    Assignee: Gene-Trak Systems
    Inventors: May K. Li, Donna McLaughlin, Elaine Palome, Jack Kessler