Patents by Inventor Matthew F. Holmes

Matthew F. Holmes 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).

  • Asymmetric microporous beads for controlled release
    Patent number: 5888930
    Abstract: A durable and sprayable controlled release bead of active ingredient in the pores of a polymeric micro-porous bead having an anisotropic pore structure of large pores in the interior and small pores at the surface, the gradation of pore sizes between the interior and the surface being continuous.
    Type: Grant
    Filed: March 13, 1997
    Date of Patent: March 30, 1999
    Assignee: Bend Research, Inc.
    Inventors: Kelly L. Smith, Matthew F. Holmes, James W. Brooke