Patents by Inventor Wah Swee Tan

Wah Swee Tan 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: 7977913
    Abstract: A battery pack comprising a rechargeable power source element; an input member for connecting the battery pack to an external power source; an output member for connecting the battery pack to an external device for power supply to the external device a micro-controller for sensing at least one characteristic of an electrical signal from the external power source, and for controlling an output signal at the output member based on the characteristics of the electrical signal.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: July 12, 2011
    Assignee: STL Energy Technology (S) Pte Ltd
    Inventors: Eng Soon Dave Tan, Kwang Sheun Tham, Wah Swee Tan
  • Publication number: 20110163723
    Abstract: A battery pack and a method of power management for a battery pack, the battery pack comprising a rechargeable power source; a protection circuit electrically isolated from the rechargeable power source in a shutdown mode of the battery pack; and a kickstart circuit for electrically connecting the protection circuit to the rechargeable power source for providing electrical protection when the battery pack is in any one of a plurality of operating states.
    Type: Application
    Filed: September 23, 2008
    Publication date: July 7, 2011
    Applicant: STL ENERGY TECHNOLOGY (S) PTE LTD
    Inventors: Eng Soon Dave Tan, Voon Ho Lee, Wah Swee Tan
  • Publication number: 20080169705
    Abstract: A battery pack comprising a rechargeable power source element; an input member for connecting the battery pack to an external power source; an output member for connecting the battery pack to an external device for power supply to the external device a micro-controller for sensing at least one characteristic of an electrical signal from the external power source, and for controlling an output signal at the output member based on the characteristics of the electrical signal.
    Type: Application
    Filed: November 18, 2005
    Publication date: July 17, 2008
    Applicant: STL Corporation
    Inventors: Eng Soon Dave Tan, Kwang Sheun Tham, Wah Swee Tan