Patents by Inventor Stephen A. Watts

Stephen A. Watts 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).

  • Carbon nanosphere-coated bacteria as mosquito larvicides
    Patent number: 11793203
    Abstract: Compositions and methods of use thereof for delivering an insecticide to water-borne insect larvae are provided. Whereas individual cells of the insecticidal bacteria such as Bacillus thuringiensis israelensis (Bti), are effective in killing insect larvae when ingested by same, their use in aqueous environments is restricted by the time that the bacterial cells remain suspended in water and hence available for ingestion by the larvae. To increase the time that the insecticidal bacteria remain in suspension, it has now been found advantageous to mix bacterial suspensions with nanoparticles comprising carbon that attach to the external surface of the cells.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: October 24, 2023
    Assignee: The UAB Research Foundation
    Inventors: Stephen A. Watts, Andrei V. Stanishevsky, Mickie L. Powell, Robert Novak
  • CARBON NANOSPHERE-COATED BACTERIA AS MOSQUITO LARVICIDES
    Publication number: 20190059388
    Abstract: Compositions and methods of use thereof for delivering an insecticide to water-borne insect larvae are provided. Whereas individual cells of the insecticidal bacteria such as Bacillus thuringiensis israelensis (Bti), are effective in killing insect larvae when ingested by same, their use in aqueous environments is restricted by the time that the bacterial cells remain suspended in water and hence available for ingestion by the larvae. To increase the time that the insecticidal bacteria remain in suspension, it has now been found advantageous to mix bacterial suspensions with nanoparticles comprising carbon that attach to the external surface of the cells.
    Type: Application
    Filed: January 20, 2017
    Publication date: February 28, 2019
    Inventors: Stephen A. Watts, Andrei V. Stanishevsky, Mickie L. Powell, Robert Novak