Patents by Inventor Sarwarul Chowdhury

Sarwarul Chowdhury 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).

  • Publication number: 20220327898
    Abstract: Technologies for an emergency evacuation system include a system operator and one or more emergency lighting units located in a building. Each emergency lighting unit further includes a processor, communication circuitry configured to communicate with the system operator, and a light indicator configured to be illuminated to indicate an exit of the building.
    Type: Application
    Filed: June 28, 2022
    Publication date: October 13, 2022
    Inventors: Christian Poirier, Marc Rondeau, Sarwarul Chowdhury
  • Patent number: 11398143
    Abstract: Technologies for an emergency evacuation system include a system operator and one or more emergency lighting units located in a building. Each emergency lighting unit further includes a processor, communication circuitry configured to communicate with the system operator, and a light indicator configured to be illuminated to indicate an exit of the building.
    Type: Grant
    Filed: August 29, 2020
    Date of Patent: July 26, 2022
    Assignee: ABB Schweiz AG
    Inventors: Christian Poirier, Marc Rondeau, Sarwarul Chowdhury
  • Publication number: 20200402376
    Abstract: Technologies for an emergency evacuation system include a system operator and one or more emergency lighting units located in a building. Each emergency lighting unit further includes a processor, communication circuitry configured to communicate with the system operator, and a light indicator configured to be illuminated to indicate an exit of the building.
    Type: Application
    Filed: August 29, 2020
    Publication date: December 24, 2020
    Inventors: Christian Poirier, Marc Rondeau, Sarwarul Chowdhury
  • Patent number: 10803715
    Abstract: Technologies for an emergency evacuation system include a system operator and one or more emergency lighting units located in a building. Each emergency lighting unit further includes a processor, communication circuitry configured to communicate with the system operator, and a light indicator configured to be illuminated to indicate an exit of the building.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: October 13, 2020
    Assignee: ABB Schweiz AG
    Inventors: Christian Poirier, Marc Rondeau, Sarwarul Chowdhury
  • Publication number: 20200027321
    Abstract: Technologies for an emergency evacuation system include a system operator and one or more emergency lighting units located in a building. Each emergency lighting unit further includes a processor, communication circuitry configured to communicate with the system operator, and a light indicator configured to be illuminated to indicate an exit of the building.
    Type: Application
    Filed: July 23, 2018
    Publication date: January 23, 2020
    Inventors: Christian Poirier, Marc Rondeau, Sarwarul Chowdhury