Patents by Inventor Robert E. Hambling

Robert E. Hambling 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).

  • Anti-fungal compositions employing metal salts of carboxylic acids
    Patent number: 4590208
    Abstract: A mixture of zinc or copper salts of primary and/or secondary saturated acyclic carboxylic acids with zinc or copper salts of a tertiary saturated acyclic carboxylic acid has been found to be of value as a preservative for wood or many other similar degradable organic materials. The mixture can be prepared simply by mixing the salts or by reacting zinc or copper or a suitable zinc or copper compound with a mixture of the appropriate acids.
    Type: Grant
    Filed: June 14, 1984
    Date of Patent: May 20, 1986
    Assignee: Cuprinol Limited
    Inventors: Edward A. Hilditch, Robert E. Hambling, Colin R. Sparks, David A. Walker
  • Anti-fungal compositions employing metal salts of carboxylic acids
    Patent number: 4374852
    Abstract: A mixture of zinc or copper salts of primary and/or secondary saturated acyclic carboxylic acids with zinc or copper salts of a tertiary saturated acyclic carboxylic acid has been found to be of value as a preservative for wood or many other similar degradable organic materials. The mixture can be prepared simply by mixing the salts or by reacting zinc or copper or a suitable zinc or copper compound with a mixture of the appropriate acids.
    Type: Grant
    Filed: October 30, 1980
    Date of Patent: February 22, 1983
    Assignee: Cuprinol Limited
    Inventors: Edward A. Hilditch, Robert E. Hambling, Colin R. Sparks, David A. Walker