Patents by Inventor Roland Albert Leigh

Roland Albert Leigh 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).

  • Compositions containing dithionites
    Patent number: 4108960
    Abstract: Anhydrous metal dithionite compositions are stabilized by 0.1 to 5% by weight of the composition of one or more of vanillin, ethyl vanillin and benzoin.
    Type: Grant
    Filed: August 30, 1976
    Date of Patent: August 22, 1978
    Assignee: BOC Limited
    Inventor: Roland Albert Leigh