Patents by Inventor Alan G. Simpson

Alan G. Simpson 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).

  • Panel system
    Patent number: 5078367
    Abstract: A panel system for use primarily as a fencing system comprises plastics material posts (4) and plastics material panels assembled from side members (2), intermediate members (3), if necessary, and a plurality of sub-panels (1) framed by the side members (2).
    Type: Grant
    Filed: May 17, 1989
    Date of Patent: January 7, 1992
    Inventors: Alan G. Simpson, Ian A. Simpson