Patents by Inventor Naduhatty Selai Raman

Naduhatty Selai Raman 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: 11923548
    Abstract: The present invention relates to the redox buffer electro-catalyst for bi-functional air electrode of metal-air batteries and fuel cells, wherein an electro-catalyst comprising of redox buffer oxides facilitates bi-functional activity of air electrode towards oxygen reduction and oxygen evolution reactions at the air electrode-electrolyte interface. The bi-functional activity of electro-catalyst comprising of redox buffer oxides is superior, due to improved electron transfer ability in comparison to electro-catalyst without redox buffer oxides.
    Type: Grant
    Filed: September 2, 2021
    Date of Patent: March 5, 2024
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Narayanam Seshubabu, Vakakuzhiyil Gopinathan Anju, Naduhatty Selai Raman, Shailendra Kumar Sharma, Sankara Sri Venkata Ramakumar
  • Patent number: 11525095
    Abstract: The present invention relates to the process for molecular separation of hydrocarbons using nanopore membrane comprising passing the hydrocarbon feedstock with or without separation enhancing additive/additives to produce permeate streams having different refractive indices which resonate with that of naphtha, kerosene and heavier molecules.
    Type: Grant
    Filed: September 21, 2021
    Date of Patent: December 13, 2022
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Prakash Bhagwant Bhalavi, Devotta Irudayaraj, Naduhatty Selai Raman, Alok Sharma, Gurpreet Singh Kapur, Sankara Sri Venkata Ramakumar
  • Publication number: 20220131158
    Abstract: The present invention relates to a uni-electrogrid lead acid battery and process of making the same. More particularly, the present invention relates to uni-electro grid plate comprising a) tubular unielectro grid plate comprising of positive tubular grid plate and negative flat grid plate; or flat unielectrogrid plate comprising of positive flat grid plate and negative flat grid plate; b) non-conductive substrate comprising positive tubular grid with positive active material on its first side and negative flat grid with negative active material on its second side; or positive flat grid with positive active material on its first side and negative flat grid with negative active material on its second side; c) at least single in one side of the grid or multiple interconnectors placed between the positive and negative grid; and d) sealant. Also, it provides tubular unielectro grid plate or flat unielectrogrid plate and process for preparing the same.
    Type: Application
    Filed: October 28, 2021
    Publication date: April 28, 2022
    Applicant: INDIAN OIL CORPORATION LIMITED
    Inventors: Palvannan MOHANASUNDARAM, Bhanumurthy SAMALA, Naduhatty Selai RAMAN, Shailendra Kumar SHARMA, Sankara Sri Venkata RAMAKUMAR
  • Publication number: 20220089959
    Abstract: The present invention relates to the process for molecular separation of hydrocarbons using nanopore membrane comprising passing the hydrocarbon feedstock with or without separation enhancing additive/additives to produce permeate streams having different refractive indices which resonate with that of naphtha, kerosene and heavier molecules.
    Type: Application
    Filed: September 21, 2021
    Publication date: March 24, 2022
    Inventors: Prakash Bhagwant BHALAVI, Devotta IRUDAYARAJ, Naduhatty Selai RAMAN, Alok SHARMA, Gurpreet Singh KAPUR, Sankara Sri Venkata RAMAKUMAR
  • Publication number: 20220069316
    Abstract: The present invention relates to the redox buffer electro-catalyst for bi-functional air electrode of metal-air batteries and fuel cells, wherein an electro-catalyst comprising of redox buffer oxides facilitates bi-functional activity of air electrode towards oxygen reduction and oxygen evolution reactions at the air electrode-electrolyte interface. The bi-functional activity of electro-catalyst comprising of redox buffer oxides is superior, due to improved electron transfer ability in comparison to electro-catalyst without redox buffer oxides.
    Type: Application
    Filed: September 2, 2021
    Publication date: March 3, 2022
    Inventors: Narayanam SESHUBABU, Vakakuzhiyil Gopinathan ANJU, Naduhatty Selai RAMAN, Shailendra Kumar SHARMA, Sankara Sri Venkata RAMAKUMAR
  • Patent number: 11084930
    Abstract: The present invention relates to a co-solubilization process for preparation of a polymer modified bitumen/asphalt and emulsified polymer modified bitumen/asphalt from bitumen, polymer, emulsifier etc. The present invention further relates to a polymer modified bitumen comprising bitumen and styrene-butadiene-styrene (SBS) linear co-polymer having high softening point. The present invention also relates to the use of the polymer modified bitumen and its emulsion in in micro-surfacing for maintenance of pavements.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: August 10, 2021
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Amol Deorukhkar, David Kochukutty, Devotta Irudayaraj, Naduhatty Selai Raman, Madhusudan Sau, Sanjiv Kumar Mazumdar, Sankara Sri Venkata Ramakumar
  • Patent number: 10759663
    Abstract: A catalyst composition for the production of carbon nanotubes (CNT) with controlled morphology is disclosed. The catalyst is represented by formula [(MxMny)Moz][binary metal oxide](100?(x+y+z)), where x is in the range 1 to 25 wt %, y is in the range 0.1 to 20 wt %, and z is in the range 0.0 to 10 wt %. Further M represents either iron or cobalt or nickel along with manganese and molybdenum supported on binary metal oxides comprising of boron, magnesium, aluminum, silicon, calcium, barium, and combination thereof. The CNT morphology can be tailor-made with the plural combination of nature of metal and promoters in appropriate proportions. The process yields the CNT with bulk density in the range of 0.01 to 0.20 g/cc, diameter in the range of 5 to 30 nm and purity greater than 95 wt %.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: September 1, 2020
    Assignee: Indian Oil Corporation Limited
    Inventors: Narayanam Seshubabu, Palvannan Mohanasundaram, Bhanumurthy Samala, Naduhatty Selai Raman, Rashmi Bagai, Sankara Sri Venkata Ramakumar, Biswapriya Das
  • Patent number: 10702795
    Abstract: The invention relates to the production of High purity n-hexane from low value stream such as raffinate from benzene extraction unit in crude oil refineries employing extractive distillation. The present invention further related to an extractive distillation employing an organic solvent having comparable or same Hansen dispersive force parameter (?d) of that of the key component of to be separated through extractive distillation. The present invention is useful for separating and isolating pure cyclohexane, pure methylcyclopentane and pure iso-heptane along with the pure n-hexane.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: July 7, 2020
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Prakash Bhagwant Bhalavi, Irudayaraj Devotta, Naduhatty Selai Raman, Brijesh Kumar, Biswapriya Das
  • Publication number: 20200199366
    Abstract: The present invention relates to a co-solubilization process for preparation of a polymer modified bitumen/asphalt and emulsified polymer modified bitumen/asphalt from bitumen, polymer, emulsifier etc. The present invention further relates to a polymer modified bitumen comprising bitumen and styrene-butadiene-styrene (SBS) linear co-polymer having high softening point. The present invention also relates to the use of the polymer modified bitumen and its emulsion in in micro-surfacing for maintenance of pavements.
    Type: Application
    Filed: December 18, 2019
    Publication date: June 25, 2020
    Applicant: INDIAN OIL CORPORATION LIMITED
    Inventors: Amol DEORUKHKAR, David KOCHUKUTTY, Devotta IRUDAYARAJ, Naduhatty Selai RAMAN, Madhusudan SAU, Sanjiv Kumar MAZUMDAR, Sankara Sri Venkata RAMAKUMAR
  • Patent number: 10468671
    Abstract: The present invention deals with employing Heteroatoms namely Nitrogen, Sulphur intrinsic embedded carbon nanotubes (H-CNT) as multifunctional additive for preparing lead acid battery electrodes to substitute the expander chemicals namely, Vanisperse, Dinel Fibre, Barium sulphate and carbon black. Further the invention provides H-CNT in-situ produced from Crude oil or its products.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: November 5, 2019
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Palvannan Mohanasundaram, Bhanumurthy Samala, Narayanam Seshubabu, Amardeep Singh, Naduhatty Selai Raman, Sankara Sri Venkata Ramakumar, Biswapriya Das
  • Patent number: 10336907
    Abstract: The invention discloses anchoring of crumb rubber in asphalt using waste plastic particularly polyethylene terephthalate (PET) derived terepthalamide along with bi-functional reactive compounds. The invention also discloses a process for the production of storage stable crumb rubber modified bitumen by incorporating various components such as waste PET, waste crumb rubber powder and bi-functional reactive compounds in bitumen.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: July 2, 2019
    Assignee: Indian Oil Corporation Limited
    Inventors: Chandra Sekhar Mohanta, Rabindra Kumar Padhan, Veena Yadav, Naduhatty Selai Raman, Anurag Ateet Gupta
  • Publication number: 20180339905
    Abstract: A catalyst composition for the production of carbon nanotubes (CNT) with controlled morphology is disclosed. The catalyst is represented by formula [(MxMny)Moz][binary metal oxide](100?(x+y+z)), where x is in the range 1 to 25 wt %, y is in the range 0.1 to 20 wt %, and z is in the range 0.0 to 10 wt %. Further M represents either iron or cobalt or nickel along with manganese and molybdenum supported on binary metal oxides comprising of boron, magnesium, aluminum, silicon, calcium, barium, and combination thereof. The CNT morphology can be tailor-made with the plural combination of nature of metal and promoters in appropriate proportions. The process yields the CNT with bulk density in the range of 0.01 to 0.20 g/cc, diameter in the range of 5 to 30 nm and purity greater than 95 wt %.
    Type: Application
    Filed: March 8, 2018
    Publication date: November 29, 2018
    Applicant: Indian Oil Corporation Limited
    Inventors: Narayanam SESHUBABU, Palvannan MOHANASUNDARAM, Bhanumurthy SAMALA, Naduhatty Selai RAMAN, Rashmi BAGAI, Sankara Sri Venkata RAMAKUMAR, Biswapriya DAS
  • Publication number: 20180337397
    Abstract: The present invention deals with employing Heteroatoms namely Nitrogen, Sulphur intrinsic embedded carbon nanotubes (H-CNT) as multifunctional additive for preparing lead acid battery electrodes to substitute the expander chemicals namely, Vanisperse, Dinel Fibre, Barium sulphate and carbon black. Further the invention provides H-CNT in-situ produced from Crude oil or its products.
    Type: Application
    Filed: March 12, 2018
    Publication date: November 22, 2018
    Applicant: INDIAN OIL CORPORATION LIMITED
    Inventors: Palvannan MOHANASUNDARAM, Bhanumurthy SAMALA, Narayanam SESHUBABU, Amardeep SINGH, Naduhatty Selai RAMAN, Sankara Sri Venkata RAMAKUMAR, Biswapriya DAS
  • Patent number: 9932529
    Abstract: The invention discloses a rubber process oil and a process for manufacturing rubber process oils which are non-carcinogenic in nature. The process comprises of selectively producing Hildebrand solubility components enriched vacuum residue by selective distillation of reduced crude oil (RCO) to obtain minimum of 10 vol % boiling components in the range 490° C. to 50° C., which leads to higher solubility of rubber process oil with an aniline point of less than 70° C. and with extremely low concentration of selective polycyclic aromatics which makes the 15 product non-carcinogenic.
    Type: Grant
    Filed: February 2, 2013
    Date of Patent: April 3, 2018
    Assignee: INDIAN OIL CORPORATION LTD.
    Inventors: Naduhatty Selai Raman, Palvannan Mohanasundaram, Pattathilchira Varghese Joseph, Pankaj Bhatnagar, Deepak Saxena, Anil Yadav, Vivekanand Kagdiyal, Brijesh Kumar, Rajan Thomas Mookken, Santanam Rajagopal, Ravinder Kumar Malhotra
  • Patent number: 9890045
    Abstract: The present invention is directed to a process for the simultaneous production of carbon nanotubes and product gas comprising hydrogen and lighter hydrocarbons, from a liquid hydrocarbon comprising feeding a liquid hydrocarbon in a reactor; and converting the liquid hydrocarbon with a catalyst for simultaneous production of the carbon nanotubes, hydrogen and lighter hydrocarbons, wherein the liquid hydrocarbon comprises petroleum crude oil, its products, or mixtures thereof.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: February 13, 2018
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Naduhatty Selai Raman, Palvannan Mohanasundaram, Narayanam Seshubabu, Jayaraj Christopher, Brijesh Kumar, Anurag Ateet Gupta, Biswapriya Das, Ravinder Kumar Malhotra
  • Publication number: 20180016437
    Abstract: The invention discloses anchoring of crumb rubber in asphalt using waste plastic particularly polyethylene terephthalate (PET) derived terepthalamide along with bi-functional reactive compounds. The invention also discloses a process for the production of storage stable crumb rubber modified bitumen by incorporating various components such as waste PET, waste crumb rubber powder and bi-functional reactive compounds in bitumen.
    Type: Application
    Filed: July 14, 2016
    Publication date: January 18, 2018
    Inventors: Chandra Sekhar MOHANTA, Rabindra Kumar PADHAN, Veena YADAV, Naduhatty Selai RAMAN, Anurag Ateet GUPTA
  • Patent number: 9862829
    Abstract: The present invention relates to a hybrid modified bitumen composition containing functionalized polymer, crumb rubber and a dual functional agent. The present invention also relates to a process of preparation of hybrid modified bitumen composition containing functionalized polymer, crumb rubber and a dual functional agent.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: January 9, 2018
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Veena Yadav, Rajender Singh Negi, Dhanesh Kumar, Naduhatty Selai Raman, Anurag Ateet Gupta, Biswapriya Das, Ravinder Kumar Malhotra
  • Patent number: 9828555
    Abstract: The invention concerns with improved and more flexible deasphalting process for production of lube oil base stock as well as feed stock for secondary processes depending on requirement from heavy residual hydrocarbon oil containing saturates, aromatics, resins and asphaltenes etc by contacting the oil with a solvent comprising of hydrocarbon containing two to six carbon atoms, preferably LPG having C3-C4 hydrocarbons and mixture thereof at predetermined deasphalting conditions wherein the yield of deasphalted oil including its quality is controlled by varying the deasphalting conditions including the operating temperature. The yield variations of 15 to 60 wt % is achieved by swinging the temperature by about 10-20° C. within the operative temperature range of 70-130° C. keeping the rest of the operating conditions including solvent to feed ratio same. The LPG solvent can be recovered using supercritical mode of operation using technology known in the art and recycled.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: November 28, 2017
    Assignee: INDIAN OIL CORPORATION LTD.
    Inventors: Devotta Irudayaraj, Naduhatty Selai Raman, Brijesh Kumar, Santanam Rajagopal
  • Publication number: 20170203231
    Abstract: The invention relates to the production of High purity n-hexane from low value stream such as raffinate from benzene extraction unit in crude oil refineries employing extractive distillation. The present invention further related to an extractive distillation employing an organic solvent having comparable or same Hansen dispersive force parameter (?d) of that of the key component of to be separated through extractive distillation. The present invention is useful for separating and isolating pure cyclohexane, pure methylcyclopentane and pure iso-heptane along with the pure n-hexane.
    Type: Application
    Filed: January 18, 2017
    Publication date: July 20, 2017
    Inventors: Prakash Bhagwant BHALAVI, Irudayaraj DEVOTTA, Naduhatty Selai RAMAN, Brijesh KUMAR, Biswapriya DAS
  • Patent number: 9528001
    Abstract: The present invention relates a novel approach to prepare Polymer Modified Bitumen by using terephthalamide additives, derived from PET, for improving bitumen quality. Particularly, the present invention provides a process to utilize waste PET, which is a threat to environment and is available commercially in different physical forms, for conversion into industrially useful additive for bituminous product.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: December 27, 2016
    Assignee: INDIAN OIL CORPORATION LTD.
    Inventors: Akhilesh Kumar Bhatnagar, Rabindra Kumar Padhan, Anurag Ateet Gupta, Naduhatty Selai Raman