Patents by Inventor Raman L. Desai

Raman L. Desai 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).

  • Aqueous ammoniacal zinc oxide compositions for lumber treatment
    Patent number: 4011090
    Abstract: A wood treating composition is provided, comprising an aqueous solution containing (a) a specified amount of zinc ion; (b) a specified amount of ammonium thiocyanate; and (c) a specified amount of zinc oxide solubilizing amount of ammonia, the composition having a pH of 9 or more. The composition may be provided by means of an aqueous ammoniacal solution of Zn(CNS).sub.2. The composition may also include one or more of the following: (a) cupric ammonium ions, (b) a vinyl polymer latex, (c) optionally, an acidic organic surfactant compound which is soluble in the ammoniacal salt solution, or (d) an additional fungicidal agent.
    Type: Grant
    Filed: April 14, 1975
    Date of Patent: March 8, 1977
    Assignee: Canadian Patents and Development Limited
    Inventors: Michael R. Clarke, Raman L. Desai