Patents by Inventor Liang-Jui Chen

Liang-Jui 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).

  • Phase-locked battery charge system
    Patent number: 6927553
    Abstract: In a phase-locked battery charge system, the structure its circuit is similar to a phase-locked loop; by means of its specific auto-tracking and auto-locking capabilities, a complete battery charge process can be accomplished automatically in the order of bulk current charge, variable current charge, and float charge. Therefore, this invention features with its simple circuit structure, good charge current, and assured safe charge effect.
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: August 9, 2005
    Inventor: Liang-Jui Chen
  • Phase-locked battery charge system
    Publication number: 20050057222
    Abstract: In a phase-locked battery charge system, the structure its circuit is similar to a phase-locked loop; by means of its specific auto-tracking and auto-locking capabilities, a complete battery charge process can be accomplished automatically in the order of bulk current charge, variable current charge, and float charge. Therefore, this invention features with its simple circuit structure, good charge current, and assured safe charge effect.
    Type: Application
    Filed: September 12, 2003
    Publication date: March 17, 2005
    Inventor: Liang-Jui Chen