Patents by Inventor Siva Kesava Raju Chintalapati

Siva Kesava Raju Chintalapati 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).

  • A CROSSLINKED POLYMER FOR DEWAXING - PREPARATION AND IMPLEMENTATIONS THEREOF
    Publication number: 20230141299
    Abstract: The present disclosure discloses a crosslinked polymer for dewaxing the lubricating oils, the polymer derived from (a) 70-77 weight percentage of at least one alkyl acrylate; (b) 23-28 weight percentage of at least one vinyl aromatic hydrocarbon; (c) 0.1-2.5 weight percentage of at least one crosslinker; and (d) 0.75-2.5 weight percentage of at least one initiator and wherein the polymer has a number average molecular weight in the range of 5000-15000. The present disclosure discloses a convenient process for preparing the crosslinked polymer. The present disclosure further reveals a method for dewaxing the lubricating oil.
    Type: Application
    Filed: April 21, 2021
    Publication date: May 11, 2023
    Inventors: Siva Kesava Raju CHINTALAPATI, Naresh KOTTARI, Srinivasa Rao GANAGALLA, Valavarasu GNANASEKARAN, Ravi BALASUBRAMANIAM
  • Process for the preparation of hydrocarbon soluble organometallic catalysts
    Patent number: 11541382
    Abstract: The instant disclosure provides a process for synthesis of compound of Formula: Xa-Mz+-Yb, wherein Mz+ is a transition metal ion and X and Y are carboxylate anions. The catalysts are hydrocarbon soluble and the process for their preparation, as disclosed herein, constitutes an elegant method for the preparation of such catalysts.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: January 3, 2023
    Assignee: Hindustan Petroleum Corporation Limited
    Inventors: Naresh Kottari, Kanuparthy Naga Raja, Siva Kesava Raju Chintalapati, Satyanarayana Murty Pudi, Bhavesh Sharma, Ramkumar Mangala, Peddy Venkata Chalapathi Rao, Nettam Venkateswarlu Choudary, Sriganesh Gandham
  • Catalyst for heavy oil upgradation
    Patent number: 11478782
    Abstract: A catalyst is provided having: (a) at least one multimetallic salt; and (b) at least one organic acid, wherein the at least one multimetallic salt to the at least one organic acid weight ratio is in the range of 1:0.01-1:0.5. A process is also provided for the preparation of the catalyst and for the preparation of the multimetallic salt.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: October 25, 2022
    Assignee: Hindustan Petroleum Corporation Limited
    Inventors: Naresh Kottari, Kanuparthy Naga Raja, Siva Kesava Raju Chintalapati, Satyanarayana Murty Pudi, Bhavesh Sharma, Ramkumar Mangala, Peddy Venkat Chalapathi Rao, Nettem Venkateswarlu Choudary, Gandham Sriganesh
  • CATALYST FOR HEAVY OIL UPGRADATION
    Publication number: 20210146345
    Abstract: A catalyst is provided having: (a) at least one multimetallic salt; and (b) at least one organic acid, wherein the at least one multimetallic salt to the at least one organic acid weight ratio is in the range of 1:0.01-1:0.5. A process is also provided for the preparation of the catalyst and for the preparation of the multimetallic salt.
    Type: Application
    Filed: July 27, 2018
    Publication date: May 20, 2021
    Inventors: NARESH KOTTARI, KANUPARTHY NAGA RAJA, SIVA KESAVA RAJU CHINTALAPATI, SATYANARAYANA MURTY PUDI, BHAVESH SHARMA, RAMKUMAR MANGALA, PEDDY VENKAT CHALAPATHI RAO, NETTEM VENKATESWARLU CHOUDARY, GANDHAM SRIGANESH
  • PROCESS FOR THE PREPARATION OF HYDROCARBON SOLUBLE ORGANOMETALLIC CATALYSTS
    Publication number: 20210138442
    Abstract: The instant disclosure provides a process for synthesis of compound of Formula: Xa- Mz+-Yb, wherein Mz+ is a transition metal ion and X and Y are carboxylate anions. The catalysts are hydrocarbon soluble and the process for their preparation, as disclosed herein, constitutes an elegant method for the preparation of such catalysts.
    Type: Application
    Filed: November 7, 2017
    Publication date: May 13, 2021
    Inventors: Naresh Kottari, Kanuparthy Naga Raja, Siva Kesava Raju Chintalapati, Satyanarayana Murty Pudi, Bhavesh Sharma, Ramkumar Mangala, Peddy Venkata Chalapathi Rao, Nettam Venkateswarlu Choudary, Sriganesh Gandham