Patents by Inventor Kelley A. Logan

Kelley A. Logan 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: 5204257
    Abstract: A method of recovering nucleic acid-containing particles from a liquid medium by contacting the liquid medium containing the particles with a mixture of hydroxylated silica beads and a salt solution to bind the nucleic acid-containing particles, centrifuging the mixture to pellet the bound particles, and separating the pellet from the liquid.
    Type: Grant
    Filed: April 29, 1991
    Date of Patent: April 20, 1993
    Assignee: Autogen Instruments, Inc.
    Inventors: David A. DeBonville, Kelley A. Logan