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).
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Patent number: 11923548Abstract: 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: GrantFiled: September 2, 2021Date of Patent: March 5, 2024Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Narayanam Seshubabu, Vakakuzhiyil Gopinathan Anju, Naduhatty Selai Raman, Shailendra Kumar Sharma, Sankara Sri Venkata Ramakumar
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Patent number: 11525095Abstract: 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: GrantFiled: September 21, 2021Date of Patent: December 13, 2022Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Prakash Bhagwant Bhalavi, Devotta Irudayaraj, Naduhatty Selai Raman, Alok Sharma, Gurpreet Singh Kapur, Sankara Sri Venkata Ramakumar
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Publication number: 20220131158Abstract: 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: ApplicationFiled: October 28, 2021Publication date: April 28, 2022Applicant: INDIAN OIL CORPORATION LIMITEDInventors: Palvannan MOHANASUNDARAM, Bhanumurthy SAMALA, Naduhatty Selai RAMAN, Shailendra Kumar SHARMA, Sankara Sri Venkata RAMAKUMAR
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Publication number: 20220089959Abstract: 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: ApplicationFiled: September 21, 2021Publication date: March 24, 2022Inventors: Prakash Bhagwant BHALAVI, Devotta IRUDAYARAJ, Naduhatty Selai RAMAN, Alok SHARMA, Gurpreet Singh KAPUR, Sankara Sri Venkata RAMAKUMAR
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Publication number: 20220069316Abstract: 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: ApplicationFiled: September 2, 2021Publication date: March 3, 2022Inventors: Narayanam SESHUBABU, Vakakuzhiyil Gopinathan ANJU, Naduhatty Selai RAMAN, Shailendra Kumar SHARMA, Sankara Sri Venkata RAMAKUMAR
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Patent number: 11084930Abstract: 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: GrantFiled: December 18, 2019Date of Patent: August 10, 2021Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Amol Deorukhkar, David Kochukutty, Devotta Irudayaraj, Naduhatty Selai Raman, Madhusudan Sau, Sanjiv Kumar Mazumdar, Sankara Sri Venkata Ramakumar
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Patent number: 10759663Abstract: 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: GrantFiled: March 8, 2018Date of Patent: September 1, 2020Assignee: Indian Oil Corporation LimitedInventors: Narayanam Seshubabu, Palvannan Mohanasundaram, Bhanumurthy Samala, Naduhatty Selai Raman, Rashmi Bagai, Sankara Sri Venkata Ramakumar, Biswapriya Das
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Patent number: 10702795Abstract: 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: GrantFiled: January 18, 2017Date of Patent: July 7, 2020Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Prakash Bhagwant Bhalavi, Irudayaraj Devotta, Naduhatty Selai Raman, Brijesh Kumar, Biswapriya Das
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Publication number: 20200199366Abstract: 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: ApplicationFiled: December 18, 2019Publication date: June 25, 2020Applicant: INDIAN OIL CORPORATION LIMITEDInventors: Amol DEORUKHKAR, David KOCHUKUTTY, Devotta IRUDAYARAJ, Naduhatty Selai RAMAN, Madhusudan SAU, Sanjiv Kumar MAZUMDAR, Sankara Sri Venkata RAMAKUMAR
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Patent number: 10468671Abstract: 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: GrantFiled: March 12, 2018Date of Patent: November 5, 2019Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Palvannan Mohanasundaram, Bhanumurthy Samala, Narayanam Seshubabu, Amardeep Singh, Naduhatty Selai Raman, Sankara Sri Venkata Ramakumar, Biswapriya Das
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Patent number: 10336907Abstract: 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: GrantFiled: July 14, 2016Date of Patent: July 2, 2019Assignee: Indian Oil Corporation LimitedInventors: Chandra Sekhar Mohanta, Rabindra Kumar Padhan, Veena Yadav, Naduhatty Selai Raman, Anurag Ateet Gupta
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Publication number: 20180339905Abstract: 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: ApplicationFiled: March 8, 2018Publication date: November 29, 2018Applicant: Indian Oil Corporation LimitedInventors: Narayanam SESHUBABU, Palvannan MOHANASUNDARAM, Bhanumurthy SAMALA, Naduhatty Selai RAMAN, Rashmi BAGAI, Sankara Sri Venkata RAMAKUMAR, Biswapriya DAS
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Publication number: 20180337397Abstract: 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: ApplicationFiled: March 12, 2018Publication date: November 22, 2018Applicant: INDIAN OIL CORPORATION LIMITEDInventors: Palvannan MOHANASUNDARAM, Bhanumurthy SAMALA, Narayanam SESHUBABU, Amardeep SINGH, Naduhatty Selai RAMAN, Sankara Sri Venkata RAMAKUMAR, Biswapriya DAS
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Patent number: 9932529Abstract: 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: GrantFiled: February 2, 2013Date of Patent: April 3, 2018Assignee: 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
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Patent number: 9890045Abstract: 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: GrantFiled: December 29, 2014Date of Patent: February 13, 2018Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Naduhatty Selai Raman, Palvannan Mohanasundaram, Narayanam Seshubabu, Jayaraj Christopher, Brijesh Kumar, Anurag Ateet Gupta, Biswapriya Das, Ravinder Kumar Malhotra
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Publication number: 20180016437Abstract: 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: ApplicationFiled: July 14, 2016Publication date: January 18, 2018Inventors: Chandra Sekhar MOHANTA, Rabindra Kumar PADHAN, Veena YADAV, Naduhatty Selai RAMAN, Anurag Ateet GUPTA
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Patent number: 9862829Abstract: 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: GrantFiled: July 23, 2015Date of Patent: January 9, 2018Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Veena Yadav, Rajender Singh Negi, Dhanesh Kumar, Naduhatty Selai Raman, Anurag Ateet Gupta, Biswapriya Das, Ravinder Kumar Malhotra
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Patent number: 9828555Abstract: 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: GrantFiled: October 29, 2012Date of Patent: November 28, 2017Assignee: INDIAN OIL CORPORATION LTD.Inventors: Devotta Irudayaraj, Naduhatty Selai Raman, Brijesh Kumar, Santanam Rajagopal
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Publication number: 20170203231Abstract: 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: ApplicationFiled: January 18, 2017Publication date: July 20, 2017Inventors: Prakash Bhagwant BHALAVI, Irudayaraj DEVOTTA, Naduhatty Selai RAMAN, Brijesh KUMAR, Biswapriya DAS
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Patent number: 9528001Abstract: 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: GrantFiled: March 16, 2015Date of Patent: December 27, 2016Assignee: INDIAN OIL CORPORATION LTD.Inventors: Akhilesh Kumar Bhatnagar, Rabindra Kumar Padhan, Anurag Ateet Gupta, Naduhatty Selai Raman