Patents by Inventor Andrew Lum

Andrew Lum 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).

  • Environmentally acceptable forging lubricants
    Patent number: 4758358
    Abstract: A lubricant composition is disclosed which is environmentally acceptable when used with hot forging of aluminum workpieces. Said lubricant comprises a metal soap composition containing no lead plus amounts of polybutene, graphite, thickening agent, mineral oil and, optionally, aliphatic solvent.
    Type: Grant
    Filed: November 12, 1987
    Date of Patent: July 19, 1988
    Assignee: Van Straaten Corporation
    Inventors: Andrew Lum, Juan Uribe, Ricardo Simmons