Patents by Inventor David Anthony Rand

David Anthony Rand 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).

  • Lead compositions for lead-acid batteries
    Publication number: 20040091777
    Abstract: Lead composition for use in the production of battery components particularly the electrode plates, having specific amounts or ranges of trace elements to maximise battery life. Ranges of trace elements include the combination of 20-100 ppm silver, 250-1000 ppm bismuth, and 250-1000 ppm zinc; or 100-1000 ppm antimony and 100-1000 ppm iron; or 250-1000 ppm bismuth, 250-1000 ppm zinc, 20-100 ppm silver, not more than 20 ppm antimony and not more than 30 ppm iron.
    Type: Application
    Filed: September 8, 2003
    Publication date: May 13, 2004
    Applicants: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION, INTERNATIONAL LEAD ZINC RESEARCH ORGANIZATION, INC.
    Inventors: Lan Trieu Lam, David Anthony Rand