Patents by Inventor Robert Ian Thomson

Robert Ian Thomson 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: 20030148680
    Abstract: A filtering screen comprises a fine woven wirecloth filtering mesh (4) disposed above a coarse woven wirecloth support mesh (2). An intermediate woven wirecloth mesh (3) is disposed between the fine woven mesh (4) and the coarse woven mesh (2). the intermediate mesh (3) extending over a proportion of the area therein at outwards the rear thereof, said proportion being in the range of 20% to 40% of the area of the screen, and preferably substantially one third of the area of the screen.
    Type: Application
    Filed: November 25, 2002
    Publication date: August 7, 2003
    Inventors: Gordon James Cook, Robert Ian Thomson