Patents by Inventor Wolf Chen

Wolf Chen 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).

  • Keyswitch structure for computer keyboard
    Patent number: 6815627
    Abstract: A keyswitch structure for computer keyboard includes a keycap, a first lever, a second lever, a base and a balance rod. The base has two holes groove lugs and each lug has a rectangular hole. The rectangular hole has an accommodating section on a bottom side thereof. The balance rod has a center rod section and two lateral rod sections vertically extending from two ends of the center rod section. The center rod section is pivotally connected to the connection stage of the keycap and the two lateral rod sections pass through the rectangular holes. The keyswitch structure has reduced gap between the balance rod and the base and thus reduces noise thereof.
    Type: Grant
    Filed: October 17, 2002
    Date of Patent: November 9, 2004
    Assignee: Lite-On Technology Corporation
    Inventor: Wolf Chen
  • KEYSWITCH STRUCTURE FOR COMPUTER KEYBOARD
    Publication number: 20040074753
    Abstract: A keyswitch structure for computer keyboard includes a keycap, a first lever, a second lever, a base and a balance rod. The base has two grooves and each groove has a rectangular hole. The rectangular hole has an accommodating section on a bottom side thereof. The balance rod has a center rod section and two lateral rod sections vertically extending from two ends of the center rod section. The center rod section is pivotally connected to the connection stage of the keycap and the two lateral rod sections pass through the rectangular holes. The keyswitch structure has reduced gap between the balance rod and the base and thus reduces noise thereof.
    Type: Application
    Filed: October 17, 2002
    Publication date: April 22, 2004
    Inventor: Wolf Chen