Patents by Inventor Michelle R. Pearce

Michelle R. Pearce 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).

  • COMPOSITIONS AND METHODS FOR DARKENING AND IMPARTING CORROSION-RESISTANT PROPERTIES TO ZINC OR OTHER ACTIVE METALS
    Publication number: 20100297354
    Abstract: Methods and compositions that serve to both darken a zinc or other active metal surface and impart corrosion-resistant properties thereto, are disclosed. The compositions include an aqueous solution containing about 0.1 percent to about 5 percent ammonium chloride and about 0.1 percent to about 5 percent ammonium molybdate. The compositions utilize particular ratios of concentrations of ammonium chloride and ammonium molybdate.
    Type: Application
    Filed: November 19, 2009
    Publication date: November 25, 2010
    Applicant: METAL COATINGS INTERNATIONAL INC.
    Inventors: Michelle R. Pearce, Brian G. Straka, Donald J. Guhde, Terry E. Dorsett
  • Compositions and methods for darkening and imparting corrosion-resistant properties to zinc or other active metals
    Patent number: 7641743
    Abstract: Methods and compositions that serve to both darken a zinc or other active! metal surface and impart corrosion-resistant properties thereto, are disclosed. The compositions include an aqueous solution containing about 0.1 percent to about 5 percent ammonium chloride and about 0.1 percent to about 5 percent ammonium molybdate. The compositions utilize particular ratios of concentrations of ammonium chloride and ammonium molybdate.
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: January 5, 2010
    Assignee: Metal Coatings International Inc.
    Inventors: Michelle R. Pearce, Brian G. Straka, Donald J. Guhde, Terry E. Dorsett