Patents by Inventor Lin Chao Wei

Lin Chao Wei 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).

  • Screw band with washers
    Publication number: 20030102236
    Abstract: A screw band with washers includes a screw band body having a plurality of planting holes spaced apart equidistantly for planting screws vertically and a plurality of washers respectively located just under the head of each screw and above the band body. Then an automatic screwdriver may drive each screw and each washer smoothly and quickly.
    Type: Application
    Filed: December 4, 2001
    Publication date: June 5, 2003
    Inventor: Lin Chao Wei
  • Screw driver with four fan-shaped blades
    Patent number: 6289775
    Abstract: A screw driver exclusively applied to drive a particular screw having compound drive recesses that can be driven by various conventional drivers, i.e., slot, cross, square-cross, square, and double-cross. The screw driver enables its drive bit to supply sufficiently large driving torques to the compound drive recesses of the screw and the screw driver lodges securely within the compound drive recesses of the screw as the drive bit of the driver turns.
    Type: Grant
    Filed: August 14, 2000
    Date of Patent: September 18, 2001
    Inventor: Lin Chao Wei