Patents by Inventor Elbert Hsin En Wu

Elbert Hsin En Wu 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).

  • Patent number: 6042125
    Abstract: A walkable inline skate includes a footwear, a roller sole integrally connected with a bottom portion of the footwear, a receiving groove centrally extended along of the roller sole, a set of roller device detachably connected with the roller sole, a locking means for ensuring the roller device is affixed within the receiving groove, a pair of supporters integrally extended from a bottom surface of the roller sole for walking purpose that defines a receiving chamber for receiving and storing the roller device when it is detached from the roller sole while walking, and a brake device connected to a rear end of the footwear. The walkable inline skate allows the user to skate or walk selectively with the same footwear according to the road surface condition to travel from places to places.
    Type: Grant
    Filed: February 10, 1998
    Date of Patent: March 28, 2000
    Inventor: Elbert Hsin En Wu