Patents by Inventor Paul M. Hernandez

Paul M. Hernandez 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).

  • Concentrated stripper composition and method
    Patent number: 5977042
    Abstract: The present invention is directed to a composition for stripping coatings from a surface, the composition including:a. A solvent mixture composed of a phenyl substituted alkyl alcohol and an alkyl or aryl glycol ether or an alkyl or aromatic alcohol;b. A coupler composed of a salt formed from a water soluble organic amine and an acid comprising at least one C7-C18 ethoxylated anionic surfactant;c. Optionally water.The use of the C7-C18 ethoxylated anionic surfactant provides a stripper which can be diluted in water of various compositions yet provide an effective stripping/cleaning agent.
    Type: Grant
    Filed: October 1, 1998
    Date of Patent: November 2, 1999
    Assignee: S. C. Johnson Commercial Markets, Inc.
    Inventors: Paul M. Hernandez, Lance D. Brown
  • Thickener compositions for water-based hydraulic and metalworking fluid compositions
    Patent number: 4636326
    Abstract: Thickener compositions, hydraulic fluid and metalworking fluid concentrates, aqueous concentrates and water-based hydraulic fluid and metalworking fluid or lubricant compositions are thickened to an oil-like viscosity by a low solids combination of thickeners. The combination of thickeners consists of at least one polyurethane and at least one dimer ester.
    Type: Grant
    Filed: December 12, 1984
    Date of Patent: January 13, 1987
    Assignee: S. C. Johnson & Son, Inc.
    Inventors: Paul M. Hernandez, Curtis R. Petersen