Patents by Inventor Marylee Z. Southard

Marylee Z. Southard 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).

  • Biologically active agent encapsulated in biodegradable starch/polymer matrices
    Patent number: 5565407
    Abstract: Improved release-extending compositions are provided for encapsulation of bioactive agents which exhibit reduced release rates of the bioactive agent from the composition matrix when compared with conventional encapsulated formulations, most preferably employed in agricultural applications for insect and weed control. The compositions of the invention from about 25-75 wt. % (non-active ingredient basis) native, undenatured starch, from about 25-75 wt. % (non-active ingredient basis) biodegradable synthetic polymer, and from about 1-40 wt. % bioactive agent.
    Type: Grant
    Filed: December 19, 1994
    Date of Patent: October 15, 1996
    Assignee: University of Kansas Center for Research, Inc.
    Inventor: Marylee Z. Southard