Patents by Inventor W. Patrick Yang

W. Patrick Yang 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).

  • Anti-loading treatments
    Patent number: 6835220
    Abstract: An abrasive is give a top coat layer consisting essentially of an inorganic, anti-loading agent selected from the group consisting of metal silicates, silicas, metal carbonates, and metal sulfates. The metal silicates can be selected from the group consisting of magnesium silicates, potassium aluminum silicates, aluminum silicates, and calcium silicates. In one embodiment, the magnesium silicates include talc, the potassium aluminum silicates include micas, the aluminum silicates include clays, and the calcium silicates include wollastonite. The silicas can be selected from the group consisting of fused silica, fumed silica, and precipitated amorphous silica. The metal carbonates can include calcium carbonate. The metal sulfates can include hydrous calcium sulfate or anhydrous calcium sulfate.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: December 28, 2004
    Assignee: Saint-Gobain Abrasives Technology Company
    Inventors: Gwo Shin Swei, Anthony C. Gaeta, W. Patrick Yang, Jony Wijaya
  • Anti-loading treatments
    Publication number: 20030066246
    Abstract: An abrasive is give a top coat layer consisting essentially of an inorganic, anti-loading agent selected from the group consisting of metal silicates, silicas, metal carbonates, and metal sulfates. The metal silicates can be selected from the group consisting of magnesium silicates, potassium aluminum silicates, aluminum silicates, and calcium silicates. In one embodiment, the magnesium silicates include talc, the potassium aluminum silicates include micas, the aluminum silicates include clays, and the calcium silicates include wollastonite. The silicas can be selected from the group consisting of fused silica, fumed silica, and precipitated amorphous silica. The metal carbonates can include calcium carbonate. The metal sulfates can include hydrous calcium sulfate or anhydrous calcium sulfate.
    Type: Application
    Filed: April 12, 2002
    Publication date: April 10, 2003
    Inventors: Gwo Shin Swei, Anthony C. Gaeta, W. Patrick Yang, Jony Wijaya