Patents by Inventor Peter Gordon Wright

Peter Gordon Wright 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).

  • Electrochromic device and medium therefor
    Patent number: 4018508
    Abstract: An electrochromic medium and electrochromic devices containing such mediums comprising an electrochromically active material, an auxiliary redox system comprising reversibly oxidizable metallic ions, for example iron, a complexing agent for the metallic ions, particularly a carboxylic acid such as tartaric acid, and an inert solvent.
    Type: Grant
    Filed: March 14, 1975
    Date of Patent: April 19, 1977
    Assignee: Imperial Chemical Industries Limited
    Inventors: Michael John McDermott, John Graham Allen, Keith Jones, Peter Gordon Wright