Patents by Inventor Arka Saha

Arka Saha 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: 20230302922
    Abstract: A system for a fuel cell vehicle including a plurality of fuel cell modules, a plurality of battery packs, and a controller. At least one of the plurality of fuel cell modules having a state of health (SOH) different from a corresponding SOH of other fuel cell modules. Each battery pack including a plurality of battery cells. At least one of the plurality of battery packs having a SOH different from a corresponding SOH of other battery packs. The controller is communicatively coupled to monitor and control operation of the plurality of fuel cell modules and the plurality of battery packs. The controller is configured to receive a power demand and determine a power split between the plurality of fuel cell modules and the plurality of battery packs based on an operating phase of the vehicle.
    Type: Application
    Filed: March 24, 2023
    Publication date: September 28, 2023
    Inventors: Agneya TURLAPATI, Akshat Abhay RAUT, Arka Saha RAY, Anant PURI, David P. GENTER, Aaron William BEINBORN, Joseph P. CHANDRARAJ, Sumit TRIPATHI, Heonjoong LEE
  • Patent number: 10549997
    Abstract: The present invention relates to the process for the scalable production of Fe3O4/Fe, Sn & Zn doped graphene nanosheets from a naturally abundant seaweed resources such as Sargassum tenerrimum, Sargassum wighti, Ulva faciata, Ulva lactuca and Kappaphycus alvarezii. The granules remained after the recovery of liquid juice from the fresh seaweeds were utilized as a raw material and a deep eutectic solvents (DESs) generated by the complexation of choline chloride and FeCl3, ZnCl2 and SnCl2 were employed as template as well as catalyst for the production graphene nanosheets functionalized with metals. Pyrolysis of the mixture of seaweed granules and DES at 700-900° C. under 95% N2 and 5% H2 atmosphere resulted formation of metal doped graphene sheets with high surface area (120-225 m2·g?1) and high electrical conductivity 2384 mS·m?1 to 2400 mS·m?1. The nanosheets thus obtained could remove substantial amount of fluoride from fluoride contaminated drinking water (95-98%).
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: February 4, 2020
    Assignee: Council of Scientific & Industrial Research
    Inventors: Kamlesh Prasad, Mukesh Sharma, Dibyendu Mondal, Arka Saha, Nripat Singh
  • Publication number: 20180126368
    Abstract: The present invention relates to the process for the scalable production of Fe3O4/Fe, Sn & Zn doped graphene nanosheets from a naturally abundant seaweed resources such as Sargassum tenerrimum, Sargassum wighti, Ulva faciata, Ulva lactuca and Kappaphycus alvarezii. The granules remained after the recovery of liquid juice from the fresh seaweeds were utilized as a raw material and a deep eutectic solvents (DESs) generated by the complexation of choline chloride and FeCl3, ZnCl2 and SnCl2 were employed as template as well as catalyst for the production graphene nanosheets functionalized with metals. Pyrolysis of the mixture of seaweed granules and DES at 700-900° C. under 95% N2 and 5% H2 atmosphere resulted formation of metal doped graphene sheets with high surface area (120-225 m2·g?1) and high electrical conductivity 2384 mS·m?1 to 2400 mS·m?1. The nanosheets thus obtained could remove substantial amount of fluoride from fluoride contaminated drinking water (95-98%).
    Type: Application
    Filed: November 7, 2016
    Publication date: May 10, 2018
    Inventors: Kamlesh Prasad, Mukesh Sharma, Dibyendu Mondal, Arka Saha, Nripat Singh