Patents by Inventor Yaser Khalifa

Yaser Khalifa 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: 11652358
    Abstract: An UPS device for electric power distribution installations, the UPS device including: first electric terminals for electrical connection with an electric load to be fed by the UPS device; second electric terminals for electrical connection with a power supply source adapted to feed the UPS device; third electric terminals for electrical connection with a back-up unit adapted to feed the UPS device, when the power supply source is not available, the back-up unit having one or more replaceable batteries; a power conversion stage electrically connectable with the first, second and third electric terminals, the power conversion stage being adapted to receive a power supply voltage from the power supply source or a back-up voltage from the back-up unit, when the power supply source is not available, and being adapted to provide an adjustable load voltage to the electric load; and an interface stage to electrically couple or decouple the back-up unit with or from the power conversion stage.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: May 16, 2023
    Assignee: ABB SCHWEIZ AG
    Inventors: Roberto Usai, Marco Testa, Yaser Khalifa, Andrea Bianco
  • Publication number: 20200195039
    Abstract: An UPS device for electric power distribution installations, the UPS device including: first electric terminals for electrical connection with an electric load to be fed by the UPS device; second electric terminals for electrical connection with a power supply source adapted to feed the UPS device; third electric terminals for electrical connection with a back-up unit adapted to feed the UPS device, when the power supply source is not available, the back-up unit having one or more replaceable batteries; a power conversion stage electrically connectable with the first, second and third electric terminals, the power conversion stage being adapted to receive a power supply voltage from the power supply source or a back-up voltage from the back-up unit, when the power supply source is not available, and being adapted to provide an adjustable load voltage to the electric load; and an interface stage to electrically couple or decouple the back-up unit with or from the power conversion stage.
    Type: Application
    Filed: December 17, 2019
    Publication date: June 18, 2020
    Inventors: Roberto Usai, Marco Testa, Yaser Khalifa, Andrea Bianco
  • Publication number: 20100305889
    Abstract: A method of identifying energy consumption associated with at least one appliance is provided. The method includes measuring an energy consumption signal, obtaining publicly available information of a location of the at least one appliance and estimating a plurality of probabilities of energized appliances based on the energy consumption signal and the publicly available information. The method further includes generating a new combination of the estimated plurality of probabilities of energized appliances and decomposing the at least one energy consumption signal into constituent individual loads and corresponding energy consumption.
    Type: Application
    Filed: May 27, 2009
    Publication date: December 2, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Harold Woodruff Tomlinson, JR., Michael Richard Durling, Rashi Tiwari, Yaser Khalifa