Patents by Inventor Asif Ahsanullah

Asif Ahsanullah 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).

  • Uninterruptible power supply for an electric apparatus
    Patent number: 9583974
    Abstract: An uninterruptible power supply system for supplying electrical power to an electrical apparatus. The system includes an alternating current (AC) power source providing AC power and a direct current (DC) power source providing DC power. The system also includes a power selector system having a power selector for selecting AC power or DC power for powering the electrical apparatus. The power selector system has a sensor for determining if AC power is acceptable for powering the electrical apparatus. In addition, the system includes a power automation system for charging the DC power source and a power management module for controlling the power selector system and the power automation system. The power management module switches to DC power for powering the electrical apparatus when the AC power is unacceptable. When DC power is used, DC power is provided directly to the electrical apparatus without converting the DC power.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: February 28, 2017
    Inventor: Asif Ahsanullah