Patents by Inventor Richard K. Merwin

Richard K. Merwin 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).

  • Publication number: 20130195946
    Abstract: Unique spherically shaped insecticidal hydrogel feeding spheres are described comprising insecticide active, food source, optional adjuvant, water, and super-absorbent polymer. The large discrete spheres with diameters of about 2 mm to about 6 mm are made possible by the use of coarse dry granulated polyacrylamide/acrylates copolymer having particle size of from about 1 mm to about 4 mm. The insecticidal hydrogel bait spheres may be placed out in the environment to control insects without the need for a bait station enclosure. The present invention also comprises a method for producing the large discrete bait spheres.
    Type: Application
    Filed: January 31, 2012
    Publication date: August 1, 2013
    Inventors: Aurora Stamper, Frédérique M. de Lame, Arlana M. Brugato, Richard K. Merwin, Debra A. Park