Patents by Inventor Robert Derek Williams

Robert Derek Williams 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).

  • Soldering flux vehicle additive and fine pitch printing method
    Patent number: 6936115
    Abstract: A lubricant additive which is a branched chain fatty alcohol or fatty acid containing a total of from 8 to 50 carbon atoms with a minimum of 4 carbon atoms being present in the shorter alkyl chain, or an ester thereof. The lubricant additive is especially adapted for inclusion in a non-aqueous flux vehicle that is mixed with a solder alloy powder to make a solder paste used in the manufacture of printed circuit boards.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: August 30, 2005
    Assignee: Fry's Metals, Inc.
    Inventors: Deborah Mallon, Andrew David Price, Leela Josephine Sequeira, Robert Derek Williams
  • Soldering flux vehicle additive and fine pitch printing method
    Publication number: 20020187264
    Abstract: A lubricant additive which is a branched chain fatty alcohol or fatty acid containing a total of from 8 to 50 carbon atoms with a minimum of 4 carbon atoms being present in the shorter alkyl chain, or an ester thereof. The lubricant additive is especially adapted for inclusion in a non-aqueous flux vehicle that is mixed with a solder alloy powder to make a solder paste used in the manufacture of printed circuit boards.
    Type: Application
    Filed: December 21, 2001
    Publication date: December 12, 2002
    Applicant: Enthone, Inc.
    Inventors: Deborah Mallon, Andrew David Price, Leela Josephine Sequeira, Robert Derek Williams