Patents by Inventor Ken W. Lee

Ken W. Lee 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).

  • Device and method for the simulation of samples of airborne substances
    Patent number: 5502998
    Abstract: An air sampling device and method to produce simulated samples of airborne substances obtained from institutional and industrial facilities. The device features 1) an environment container, 2) an ejector for introducing a contaminant into the container environment, 3) a sample collection holder to hold a filter, 4) a pump to withdraw the container environment and contaminant out of the container in a fashion that allows collection of the contaminant on the filter, and 5) a container inlet to allow replacement environment to enter the container.
    Type: Grant
    Filed: April 25, 1994
    Date of Patent: April 2, 1996
    Assignee: The Procter and Gamble Company
    Inventors: Larry S. Miller, Ken W. Lee, Doyle F. Kohler, Randy Jones, Richard Tuttle
  • Vitrified bonded grinding wheel with mixtures of sol gel aluminous abrasives and silicon carbide
    Patent number: 5118326
    Abstract: Vitrified bonded grinding wheels which contain a mixture of sintered sol gel aluminous abrasive and silicon carbide abrasive are substantially and surprisingly better than those with either abrasive component alone, in their ability to abrade certain metals.
    Type: Grant
    Filed: May 4, 1990
    Date of Patent: June 2, 1992
    Assignee: Norton Company
    Inventors: Ken W. Lee, Charles V. Rue