Patents by Inventor Suzette L. Mombrun

Suzette L. Mombrun 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).

  • Cleaning compositions and methods for removing soldering flux
    Patent number: 4983224
    Abstract: A method to remove solder flux residues from assembled or partially assembled electronic circuit boards employs a composition containing a nonpolar component consisting essentially of terpenes and/or terpenols, a polar component consisting essentially of a polar aprotic solvent or a mixture of polar aprotic solvents, and a surfactant. Use of this composition results in shorter cleaning times at lower temperatures with superior results.
    Type: Grant
    Filed: October 28, 1988
    Date of Patent: January 8, 1991
    Assignee: RD Chemical Company
    Inventors: Suzette L. Mombrun, Rudolf P. Sedlak
  • Process and composition for forming black oxide layers
    Patent number: 4969958
    Abstract: Black, brown, and red oxide layers having high adhesion and peel strength are formed on printed circuit boards by adding a suitable amphipathic anionic surfactant to standard oxidizing solutions. The oxide layers thus formed result in multilayer circuit boards having reduced tendency to delaminate.
    Type: Grant
    Filed: March 30, 1989
    Date of Patent: November 13, 1990
    Assignee: RD Chemical Company
    Inventors: Suzette L. Mombrun, Rudolf P. Sedlak