Patents by Inventor Gerald T. Hefferan

Gerald T. Hefferan 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).

  • Method for the synthesis of borazine
    Patent number: 4150097
    Abstract: A method for synthesizing borazine by preparing a liquid mixture of ammonia borane and a high boiling point solvent which is inert to ammonia borane, and heating said mixture to obtain borazine and hydrogen. Volatized borazine is stripped from the hydrogen during synthesis and any borazine entrained in the solvent is removed by distillation.
    Type: Grant
    Filed: March 30, 1978
    Date of Patent: April 17, 1979
    Assignee: Mine Safety Appliances Company
    Inventors: William V. Hough, Clarence R. Guibert, Gerald T. Hefferan
  • Electroless gold plating baths
    Patent number: 4142902
    Abstract: Improved electroless gold plating baths, free of cyanide ion, comprise an alkaline aqueous solution of a soluble gold (III) salt and an ether substituted tertiary amine borane. Metallic and non-metallic substrates having catalytically activated surfaces are plated by immersing the substrate in the plating bath.
    Type: Grant
    Filed: January 9, 1978
    Date of Patent: March 6, 1979
    Assignee: Mine Safety Appliances Company
    Inventors: Aaron R. Burke, William V. Hough, Gerald T. Hefferan