Patents by Inventor Weili Yu

Weili Yu 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).

  • Publication number: 20070227010
    Abstract: Multi-blade razors are provided, having blades with differing properties. In one aspect, a razor is provided that includes a safety razor blade unit comprising a guard, a cap, and first, second and third blades with parallel sharpened edges located between the guard and cap with the first blade closest to the cap, the third blade furthest from the cap, and the second blade disposed between the first and third blades, the blades having first, second and third tip radii, respectively, at least two of the three blades having different tip radii, and at least two of the blades having different coefficients of friction.
    Type: Application
    Filed: March 29, 2006
    Publication date: October 4, 2007
    Inventors: Andrew Zhuk, Weili Yu, Hoang Trankiem, Neville Sonnenberg, Kevin Powell, Yiqian Liu, Robert Lescanec, Steve Hahn, Joseph DePuydt, Alan Crook, Cinzia Cloke
  • Publication number: 20070227009
    Abstract: Razors are described herein. In some instances the razors include a safety razor blade unit comprising a guard, a cap, and at least two blades with parallel sharpened edges located between the guard and cap. A first blade defines a blade edge nearer the guard and a second blade defines a blade edge nearer the cap. The first blade has a cutter force greater than the cutter force of the second blade. In some instances the razors provide a comfortable shave having improved closeness.
    Type: Application
    Filed: March 29, 2006
    Publication date: October 4, 2007
    Inventors: Andrew Zhuk, Weili Yu, Hoang Mai Trankiem, Neville Sonnenberg, Kevin L. Powell, Yiqian Eric Liu, Robert L. Lescanec, Steve S. Hahn, Joseph A. DePuydt, Cinzia Simonis Cloke
  • Publication number: 20070227008
    Abstract: Multi-blade razors are provided. The razors include blades having different tip radii and thus different relative sharpness.
    Type: Application
    Filed: March 29, 2006
    Publication date: October 4, 2007
    Inventors: Andrew Zhuk, Weili Yu, Hoang Trankiem, Neville Sonnenberg, Kevin Powell, Yiqian Liu, Robert Lescanec, Steve Hahn, Joseph DePuydt, Alan Crook, Cinzia Cloke