Patents by Inventor Nicolas Pearson

Nicolas Pearson 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).

  • Amalgam retainer
    Patent number: 6528953
    Abstract: An arc discharge lamp comprises an arc chamber having an amalgam tip attached to and communicating with it. The communication comprises a narrow tubular extension that penetrates the amalgam tip for a distance less than the depth of the tip. An amalgam that includes bismuth is contained within the amalgam tip. This construction allows operation of the lamp in any position and prevents the bismuth in the amalgam from penetrating the lamp and poisoning the phosphor.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: March 4, 2003
    Assignee: Osram Sylvania Inc.
    Inventors: Nicolas Pearson, Joseph V. Lima, David C. Wentzel