Patents by Inventor Raman Ravishankar

Raman Ravishankar 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: 11471791
    Abstract: A process is provided for separating hydrophobic material from a mixture of hydrophobic and hydrophilic material using peptide-based amphiphilic organogelators.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: October 18, 2022
    Assignee: Hindustan Petroleum Corporation Limited
    Inventors: Raman Ravishankar, Chinthalapati Sivakesava Raju, Jitalaxmi Bharali, Sheshachala Srinivasa Narasimha, Peddy Venkat Chalapathi Rao, Nettem Venkateswarlu Choudary
  • Patent number: 11440919
    Abstract: Sugar-based compounds are provided along with methods for making such compounds. Gels comprising such compounds are also provided along with methods of making gels. Methods of using such compounds for containing spill of a hydrocarbon, and method for reclaiming solvent from gels, comprising such compounds.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: September 13, 2022
    Assignee: Hindustan Petroleum Corporation Ltd.
    Inventors: Raman Ravishankar, Chinthalapati Siva Kesava Raju, Bhaskar Pramanik, Peddy Venkat Chalapathi Rao, Venkateswarlu Choudary Nettem, Gandham Sriganesh
  • Patent number: 11059831
    Abstract: Provided are sugar-based compounds, method so making such compounds, gels comprising such compounds, methods of making gels, methods of using such compounds for containing spill of a hydrocarbon, and methods for reclaiming solvent from gels comprising such compounds.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: July 13, 2021
    Inventors: Raman Ravishankar, Chinthalapati Siva Kesava Raju, Bhaskar Pramanik, Peddy Venkat Chalapathi Rao, Venkateswarlu Choudary Nettem, Gandham Sri Ganesh
  • Patent number: 10894781
    Abstract: In accordance with the present subject matter there is provided sugar-based compounds of formula I, methods of making such compounds, gels comprising such compounds, methods of making gels, methods of using such compounds for the containing spill of a hydrocarbon, and methods for reclaiming solvent from gels comprising such compounds.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: January 19, 2021
    Assignee: Hindustan Petroleum Corporation LTD.
    Inventors: Raman Ravishankar, Siva Kesava Raju Chinthalapati, Bhaskar Pramanik, Peddi Venkat Chalapathi Rao, Venkateswarlu Choudary Nettem, Gandham Sriganesh
  • Patent number: 10851273
    Abstract: In accordance with the present subject matter there is provided a compound of Formula I wherein, R1 is substituted C1 to C10 alkyl; and R2 is substituted C1 to C10 alkyl, a process for preparing a compound of Formula I, and a gel comprising a compound of Formula I. There is also provided a process for separating a hydrophobic material from a mixture of hydrophobic and hydrophilic material using a compound of Formula I.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: December 1, 2020
    Assignee: Hindustan Petroleum Corporation LTD.
    Inventors: Raman Ravishankar, Siva Kesava Raju Chinthalapati, Bhaskar Pramanik, Tanmoy Kar, Peddi Venkat Chalapathi Rao, Venkateswarlu Choudary Nettem
  • Patent number: 10851318
    Abstract: The disclosure relates to an anti fouling composition including a metallic component comprising of at least one alkali metal salt and a non-metallic component and method for preparation of anti fouling composition. The disclosure also relates to a process of reducing fouling in reactors or furnaces using said composition.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: December 1, 2020
    Assignee: HINDUSTAN PETROLEUM CORPORATION LTD
    Inventors: Kanaparthi Ramesh, Raman Ravishankar, Chinthalapati Siva Kesava Raju, Madala Sairamu, Priyanka Saha, Cheerladinne Venkateswarlu, Peddy Venkat Chalapathi Rao, Nettem Venkateswarlu Choudary
  • Patent number: 10815432
    Abstract: The present disclosure relates to an additive and a catalyst composition for a catalytic cracking process of vacuum gas oil for preparing cracked run naphtha having reduced liquid olefin content, and increased propylene and butylene yields in the LPG fraction. The process makes use of a catalyst composition which is a mixture of an FCC equilibrated catalyst and an additive comprising a zeolite, phosphorus and a combination of metal promoters. The process is successful in achieving high propylene and butylene yields in the LPG fraction along with a lower liquid olefin content and increased aromatic content with increase in RON unit in the resultant cracked run naphtha, as compared to that achieved using an FCC equilibrated catalyst alone.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: October 27, 2020
    Assignee: Hindustan Petroleum Corporation Limited
    Inventors: Raman Ravishankar, Sunil Mehla, Somnath Kukade, Peddy Venkata Chalapathi Rao, Nettem Venkateswarlu Choudary
  • Patent number: 10800978
    Abstract: The present disclosure relates to an additive and a catalyst composition for a catalytic cracking process of vacuum gas oil for preparing cracked run naphtha having reduced liquid olefin content, and increased propylene and butylene yields in the LPG fraction. The process makes use of a catalyst composition which is a mixture of an FCC equilibrated catalyst and an additive comprising a zeolite, phosphorus and a combination of metal promoters. The process is successful in achieving high propylene and butylene yields in the LPG fraction along with a lower liquid olefin content and increased aromatic content with increase in RON unit in the resultant cracked run naphtha, as compared to that achieved using an FCC equilibrated catalyst alone.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: October 13, 2020
    Assignee: Hindustan Petroleum Corporation Limited
    Inventors: Raman Ravishankar, Somnath Kukade, Peddy Venkata Chalapathi Rao, Nettem Venkateswarlu Choudary
  • Patent number: 10786809
    Abstract: The present disclosure relates to an additive and a catalyst composition for a catalytic cracking process of vacuum gas oil for preparing cracked run naphtha having reduced liquid olefin content, and increased propylene and butylene yields in the LPG fraction. The process makes use of a catalyst composition which is a mixture of an FCC equilibrated catalyst and an additive comprising a zeolite, phosphorus and a combination of metal promoters. The process is successful in achieving high propylene and butylene yields in the LPG fraction along with a lower liquid olefin content and increased aromatic content with increase in RON unit in the resultant cracked run naphtha, as compared to that achieved using an FCC equilibrated catalyst alone.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: September 29, 2020
    Assignee: HINDUSTAN PETROLEUM CORPORATION LIMITED
    Inventors: Raman Ravishankar, Peddy Venkata Chalapathi Rao, Nettem Venkateswarlu Choudary
  • Publication number: 20200298144
    Abstract: A process is provided for separating hydrophobic material from a mixture of hydrophobic and hydrophilic material using peptide-based amphiphilic organogelators.
    Type: Application
    Filed: November 8, 2016
    Publication date: September 24, 2020
    Applicant: Hindustan Petroleum Corporation Limited
    Inventors: Raman RAVISHANKAR, Chinthalapati Sivakesava RAJU, Jitalaxmi BHARALI, Sheshachala NARASIMHA, Peddy Venkat Chalapathi RAO, Nettem Venkateswarlu CHOUDARY
  • Patent number: 10717940
    Abstract: The present disclosure relates to a catalyst for slurry phase hydrocracking of refinery residue and a process for its preparation. The present disclosure provides a very simple method for exfoliation of metal sulphide, and a process of that provides effective slurry phase hydrocracking of refinery residue with a high yield.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: July 21, 2020
    Assignee: Hindustan Petroleum Corporation Limited
    Inventors: Nettem Venkateswarlu Choudary, Kanuparthy Naga Raja, Raman Ravishankar, Bipul Sarkar, Valavarasu Gnanesekaran, Peddy Venkata Chalapathi Rao, Sriganesh Gandham
  • Patent number: 10647629
    Abstract: A process for oligomerization of olefins includes contacting a feedstock with a zeolite catalyst under conditions of oligomerization at pressure between 8-20 bars and temperature in the range of 60-100° C. to obtain oligomers, wherein, the zeolite catalyst has a pentagonal sheet morphology.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: May 12, 2020
    Assignee: Hindustan Petroleum Corporation Limited
    Inventors: Raman Ravishankar, Bennet Chelliahn, Ragireddy Sudarshan Reddy, Peddy Venkat Chalapathy Rao, Gandham Sriganesh
  • Patent number: 10519387
    Abstract: Accordingly, the present invention provides a catalyst composition suitable for converting light naphtha comprising one or more of C5 to C8 carbon atoms to aromatic compounds ranging from C6 to C10 carbon atoms, said catalyst composition comprising: (a) a medium pore size zeolite; (b) 0.1 to 5.0 wt % of zinc; and (c) 0.1 to 5 wt % of gallium. Also, the present invention provides a process for converting light naphtha comprising one or more of C5 to C8 carbon atoms to aromatic compounds ranging from C6 to C10 carbon atoms, said process comprising the step of contacting a feedstock comprising the light naphtha with a catalyst composition comprising (a) a medium pore size zeolite; (b) 0.1 to 5.0 wt % of zinc; and (c) 0.1 to 5 wt % of gallium in presence of carrier gas at temperatures ranging from 400° to 600° C.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: December 31, 2019
    Assignee: HINDUSTAN PETROLEUM CORPORATION LTD.
    Inventors: Raman Ravishankar, Peddy Venkat Chalapathi Rao, Nettem Venkateswarlu Choudary, Ganapati V. Shanbhag, Hodala Lakshminarayan Janardhan, Anand B. Halgeri, Sriganesh Gandham
  • Publication number: 20190359624
    Abstract: Provided are sugar-based compounds, method so making such compounds, gels comprising such compounds, methods of making gels, methods of using such compounds for containing spill of a hydrocarbon, and methods for reclaiming solvent from gels comprising such compounds.
    Type: Application
    Filed: November 29, 2016
    Publication date: November 28, 2019
    Inventors: RAMAN RAVISHANKAR, CHINTHALAPATI SIVA KESAVA RAJU, BHASKAR PRAMANIK, PEDDY VENKAT CHALAPATHI RAO, VENKATESWARLU CHOUDARY NETTEM, GANDHAM SRI GANESH
  • Patent number: 10441944
    Abstract: A catalyst composition for isomerization of paraffins includes at least one metal, at least one heteropoly acid and a support material. Further provided are a process for preparation of the catalyst composition and a process for isomerization of paraffins using the catalytic composition.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: October 15, 2019
    Assignee: Hindustan Petroleum Corporation Ltd.
    Inventors: Raman Ravishankar, Safinaz Saif, Sunil Mehla, Bennet Chellian, Peddy Venkatachallapathy Rao, Choudary Venkateswarlu Nettem, Sriganesh Gandham
  • Publication number: 20190241580
    Abstract: Sugar-based compounds are provided along with methods for making such compounds. Gels comprising such compounds are also provided along with methods of making gels. Methods of using such compounds for containing spill of a hydrocarbon, and method for reclaiming solvent from gels, comprising such compounds.
    Type: Application
    Filed: December 2, 2016
    Publication date: August 8, 2019
    Inventors: RAMAN RAVISHANKAR, CHINTHALAPATI SIVA KESAVA RAJU, BHASKAR PRAMANIK, PEDDY VENKAT CHALAPATHI RAO, VENKATESWARLU CHOUDARY, GANDHAM GANESH
  • Patent number: 10343144
    Abstract: In accordance with the present subject matter there is provided peptide-based compounds. methods of making such compounds, gels comprising such compounds, methods of making gels, methods of using such compounds for the containing spill of a hydrocarbon, and methods for reclaiming solvent from gels comprising such compounds.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: July 9, 2019
    Assignee: Hindustan Petroleum Corporation Ltd.
    Inventors: Raman Ravishankar, Siva Kesava Raju Chinthalapati, Tanmoy Kar, Bhaskar Pramanik, Peddy Venkata Chalapathi Rao, Venkateswarlu Choudary Nettem
  • Patent number: 10294174
    Abstract: A catalyst composition is provided for isomerization of paraffins comprising of at least one heteropoly acid and reduced graphene oxide. Further provided are a process for preparation of the catalyst composition and a process for isomerization of paraffins using the catalytic composition.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: May 21, 2019
    Assignee: Hindustan Petroleum Corporation Ltd.
    Inventors: Raman Ravishankar, Safinaz Saif, Peddy Venkatachallapathy Rao, Venkateswarlu Choudary Nettem, Sriganesh Gandham
  • Publication number: 20190127293
    Abstract: A process for oligomerization of olefins includes contacting a feedstock with a zeolite catalyst under conditions of oligomerization at pressure between 8-20 bars and temperature in the range of 60-100° C. to obtain oligomers, wherein, the zeolite catalyst has a pentagonal sheet morphology.
    Type: Application
    Filed: February 1, 2017
    Publication date: May 2, 2019
    Applicant: HINDUSTAN PETROLEUM CORPORATION LTD.
    Inventors: RAMAN RAVISHANKAR, BENNET CHELLIAHN, RAGIREDDY SUDARSHAN REDDY, PEDDY VENKAT CHALAPATHY RAO, GANDHAM SRIGANESH
  • Publication number: 20190106399
    Abstract: In accordance with the present subject matter there is provided sugar-based compounds of formula I, methods of making such compounds, gels comprising such compounds, methods of making gels, methods of using such compounds for the containing spill of a hydrocarbon, and methods for reclaiming solvent from gels comprising such compounds.
    Type: Application
    Filed: December 2, 2016
    Publication date: April 11, 2019
    Inventors: Raman Ravishankar, Chinthalapati Siva Kesava Raju, Bhaskar Pramanik, Peddy Venkat Chalapathi Rao, Venkateswarlu Choudary Nettem, Gandham Sriganesh