Patents by Inventor Robert B. Townsend

Robert B. Townsend 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).

  • Control of sheep ectoparasites
    Patent number: 5286749
    Abstract: A topical liquid formulation for treating lice or head infection is disclosed. The formulation contains active ingredients such as deltamethrin or permethrin in a lower alkyl ether of glycol.
    Type: Grant
    Filed: October 12, 1990
    Date of Patent: February 15, 1994
    Assignee: Pitman-Moore Inc.
    Inventors: Peter J. Kieran, Robert B. Townsend
  • Method of controlling insects and parasites with an aqueous localized pour-on formulation
    Patent number: 4607050
    Abstract: An aqueous pour-on formulation for localized external application to animals comprises an aqueous carrier, an effective amount of a water-insoluble anti-parasitic agent suspended or dispersed in the aqueous carrier, and a colored dye to enable the application to be observed. Preferred water-insoluble agents include pyrethroids, organophosphorus compounds, formamidines, thiazoles and avermectins. Use of an aqueous system avoids skin reactions sometimes found when non-aqueous solvent systems are used.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: August 19, 1986
    Assignee: Wellcome Australia Limited
    Inventors: Peter J. Kieran, Robert B. Townsend, Ronald J. Hackney, Stephen Gayst, Michael J. Maguire