Patents by Inventor Paul Christopher Healey

Paul Christopher Healey 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 to extend the bathlife of alkaline accelerator solutions
    Patent number: 6277181
    Abstract: This invention is a method to extend the bath life of certain alkaline accelerators used in metal/tin colloid catalyst used in direct plating processes on printed circuit boards. The method is comprised of the following steps: measuring the pH of the alkaline activator bath, and restoring, the pH of the alkaline activator bath to a desired pH range between 12.2 and 12.6.
    Type: Grant
    Filed: August 16, 1999
    Date of Patent: August 21, 2001
    Assignee: Oliver Sales Company
    Inventors: Richard Carroll Condra, Paul Christopher Healey
  • Method of replacing evaporation losses from colloidal catalyst baths
    Patent number: 6277180
    Abstract: A method to make volumetric additions of dilute aqueous acid solutions to a colloidal catalyst bath that will retard the salt crystallization. The process includes the steps of measuring the volumetric loss of water by physical measurements and adding dilute aqueous acid solution to the bath in the amount of the loss or by measuring the density or specific gravity of the solution and adding dilute aqueous acid solutions to maintain the specific gravity in the desired range.
    Type: Grant
    Filed: July 12, 1999
    Date of Patent: August 21, 2001
    Assignee: Oliver Sales Company
    Inventors: Richard Carroll Condra, Paul Christopher Healey