Patents by Inventor Prasenjit Ghosh

Prasenjit Ghosh 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: 20240046175
    Abstract: The disclosure relates to a method for determining an employee engagement index score of an employee in an organization, the method including receiving a plurality of influencer scores for a plurality of employee; receiving a plurality of weightages for each of the plurality of influencer scores, the plurality of weightages defined by the organization; generating an employee engagement index score for each employee based on the plurality of weightages and the plurality of influencer scores associated with the employee; generating a graphical user interface that displays output data comprising the employee engagement index score of each employee and a category associated with each employee.
    Type: Application
    Filed: August 8, 2022
    Publication date: February 8, 2024
    Inventor: Prasenjit Ghosh
  • Publication number: 20230391621
    Abstract: The present invention relates to a cryogenic process to produce crude helium from pretreated natural gas. The pretreated natural gas is processed in two flash stages using the helium free process stream as a stripping agent, and a distillation column with the identified operating conditions and process scheme to ensure 100% helium recovery with reduced capital and operating cost for producing the crude helium. The integration of the cryogenic process with the already known purification system to produce pure helium is demonstrated to ensure high helium recovery in a hybrid process.
    Type: Application
    Filed: June 5, 2023
    Publication date: December 7, 2023
    Applicants: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH, ONGC Energy Centre Trust (OECT)
    Inventors: Sunil Kumar, Avinash S. Mhetre, Ojasvi Sharma, Swapnil Diveker, Soumen Dasgupta, Manoj Srivastava, Anjan Ray, Aarti Arya, Prasenjit Ghosh, Bharat S. Mendhe, Nammi Ramya
  • Patent number: 11033889
    Abstract: The present invention provides Acyclic diaminocarbene complex of formula (I): Wherein, M is palladium; X is monoanionic ligand selected from Cl, Br or I; Where R1 is different from R2; R1 is selected from the group consisting of alkyl or aryl, each of which have 4 to 20 carbon atoms, and may optionally contain one or more heteroatoms; R2 is selected from the group consisting of alkyl, or aryl each of which have 4 to 20 carbon atoms, and may optionally contain one or more heteroatoms. The said palladium diamino carbine complex of the present invention are particularly useful as catalyst from Hiyama cross-coupling reaction.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: June 15, 2021
    Assignee: INDIAN INSTITUTE OF TECHNOLOGY BOMBAY
    Inventors: Chandan Singh, Prasenjit Ghosh
  • Publication number: 20200122132
    Abstract: The present invention provides Acyclic diaminocarbene complex of formula (I): Wherein, M is palladium; X is monoanionic ligand selected from Cl, Br or I; Where R1 is different from R2; R1 is selected from the group consisting of alkyl or aryl, each of which have 4 to 20 carbon atoms, and may optionally contain one or more heteroatoms; R2 is selected from the group consisting of alkyl, or aryl each of which have 4 to 20 carbon atoms, and may optionally contain one or more heteroatoms. The said palladium diamino carbine complex of the present invention are particularly useful as catalyst from Hiyama cross-coupling reaction.
    Type: Application
    Filed: October 23, 2018
    Publication date: April 23, 2020
    Applicant: INDIAN INSTITUTE OF TECHNOLOGY BOMBAY
    Inventors: Chandan Singh, Prasenjit Ghosh
  • Patent number: 10421769
    Abstract: The present invention relates to the anticancer property studies of a series of chiral palladium N-heterocyclic carbene complexes of the general formula of (NHC)2PdX2 [NHC=chiral N-heterocyclic carbene ligand 1-(1S,2S,5R/1R,2R,5S)-menthyl-4-(R)-1,2,4-triazol-5-ylidene, wherein R=Et, allyl and CH2Ph; X?Br or OCOCF3], as designated by, (1S,2S,5R)-(1-3)b and (1R,2R,5S)-(1-3)b, (1S,2S,5R)-(1, 3)c and (1R,2R,5S)-(1, 3)c represented by formula (Ig, Ih) below. The present invention further investigates the influence of chirality on the anticancer activity, wherein the enantiomeric pairs of present chiral palladium N-heterocyclic carbene complexes of formula (Ig, Ih) shows no differential activity based on optical isomerism despite all of the palladium complexes exhibiting high anti-proliferative activity towards a variety of cancer cells.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: September 24, 2019
    Assignee: India Institute of Technology Bombay
    Inventors: Anuj Kumar, Afsana Naaz, Prakasham Ayyampudur Palanisamy, Dulal Panda, Prasenjit Ghosh
  • Patent number: 10190064
    Abstract: An integrated process for simultaneous removal and value addition to sulfur and aromatics compounds of gas oil is provided. Process includes the segregation of refractive sulfur and aromatics compounds of gas oil in heavy fraction of gas oil using distillation processing of heavy fraction of gas oil in continuous solvent extraction zone, processing of lighter fraction of gas oil and raffinate of heavy fraction of gas oil in hydrotreating reaction zone operating under mild conditions of temperature and pressure for producing the gas oil with reduced sulfur and aromatic compounds and contact of extract phase generated during continuous extraction with water in mixer settler for generating the pseudo raffinate which can be used as suitable feed to hydrocracker to generate sulfur lean gas oil.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: January 29, 2019
    Assignee: Council of Scientific & Industrial Research
    Inventors: Sunil Kumar, Shrikant Madhusudan Nanoti, Madhukar Onkarnath Garg, Bhagat Ram Nautiyal, Prasenjit Ghosh, Pooja Yadav, Nisha
  • Patent number: 10105620
    Abstract: Disclosed is a process for simultaneous production of benzene lean gasoline and recovery of high purity aromatics from narrow boiling light cracked gasoline fractions. The present invention provides a vacuum based two stage extractive distillation process, with pure NMP, for production of benzene lean gasoline (benzene content less than 0.4 Weight %) by recovery of high purity aromatics (purity more than 99 Weight %) from cracked gasoline fractions (boiling in the range of 40-90° C.) comprising benzene in the range of 10-30 weight % and close-boiling non-aromatic hydrocarbons like paraffins, iso-paraffins, olefins, di-olefins (including conjugated di-olefins), and naphthenes in the range of 70-90 weight % along with impurities containing but not limited to oxygenates, metals, chlorides, sulphur compounds, nitrogen compounds and organic peroxides.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: October 23, 2018
    Assignee: Council of Scientific & Industrial Research
    Inventors: Madhukar Onkarnath Garg, Prasenjit Ghosh, Sunil Kumar, Shrikant Madhusudan Nanoti, Bhagat Ram Nautiyal
  • Publication number: 20180194789
    Abstract: The present invention relates to the anticancer property studies of a series of chiral palladium N-heterocyclic carbene complexes of the general formula of (NHC)2PdX2 [NHC=chiral N-heterocyclic carbene ligand 1-(1S,2S,5R/1R,2R,5S)-menthyl-4-(R)-1,2,4-triazol-5-ylidene, wherein R=Et, allyl and CH2Ph; X=Br or OCOCF3], as designated by, (1S,2S,5R)-(1-3)b and (1R,2R,5S)-(1-3)b, (1S,2S,5R)-(1, 3)c and (1R,2R,5S)-(1, 3)c represented by formula (Ig, Ih) below. The present invention further investigates the influence of chirality on the anticancer activity, wherein the enantiomeric pairs of present chiral palladium N-heterocyclic carbene complexes of formula (Ig, Ih) shows no differential activity based on optical isomerism despite all of the palladium complexes exhibiting high anti-proliferative activity towards a variety of cancer cells.
    Type: Application
    Filed: November 8, 2017
    Publication date: July 12, 2018
    Inventors: Anuj Kumar, Afsana Naaz, Prakasham Ayyampudur Palanisamy, Dulal Panda, Prasenjit Ghosh
  • Publication number: 20160288014
    Abstract: Disclosed is a process for simultaneous production of benzene lean gasoline and recovery of high purity aromatics from narrow boiling light cracked gasoline fractions. The present invention provides a vacuum based two stage extractive distillation process, with pure NMP, for production of benzene lean gasoline (benzene content less than 0.4 Weight %) by recovery of high purity aromatics (purity more than 99 Weight %) from cracked gasoline fractions (boiling in the range of 40-90° C.) comprising benzene in the range of 10-30 weight % and close-boiling non-aromatic hydrocarbons like paraffins, iso-paraffins, olefins, di-olefins (including conjugated di-olefins), and naphthenes in the range of 70-90 weight % along with impurities containing but not limited to oxygenates, metals, chlorides, sulphur compounds, nitrogen compounds and organic peroxides.
    Type: Application
    Filed: March 30, 2016
    Publication date: October 6, 2016
    Inventors: MADHUKAR ONKARNATH GARG, PRASENJIT GHOSH, SUNIL KUMAR, SHRIKANT MADHUSUDAN NANOTI, BHAGAT RAM NAUTIYAL
  • Publication number: 20160281008
    Abstract: An integrated process for simultaneous removal and value addition to sulfur and aromatics compounds of gas oil is disclosed. Refractive sulfur and aromatics compounds of gas oil are segregated in heavy fraction of gas oil using distillation. The refractive sulfur and aromatic compounds rich heavy fraction of gas oil is subjected to continuous solvent extraction zone. The lighter fraction of gas oil and raffinate of heavy fraction of gas oil are subjected to hydrotreating reaction zone operating under mild conditions of temperature and pressure for producing the gas oil with reduced sulfur and aromatic compounds to deep level. The pseudo raffinate from the extract phase of continuous extraction is generated using the water in mixer settler for improving the yield of raffinate by generating the pseudo raffinate which can be used as suitable feed to hydrocracker to generate sulfur free gas oil.
    Type: Application
    Filed: March 22, 2016
    Publication date: September 29, 2016
    Inventors: Sunil KUMAR, Shrikant Madhusudan NANOTI, Madhukar Onkarnath GARG, Bhagat Ram NAUTIYAL, Prasenjit GHOSH, Pooja YADAV, Nisha
  • Patent number: 8722952
    Abstract: Disclosed is a process for production of benzene lean gasoline by recovery of high purity benzene from a narrow boiling benzene concentrated unprocessed cracked gasoline fraction. The process involves subjecting the feed material to an extractive distillation (ED) operation using an aromatic selective solvent in combination with a co-solvent.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: May 13, 2014
    Assignees: Council of Scientific & Industrial Research, Reliance Industries Limited
    Inventors: Madhukar Onkarnath Garg, Shrikant Madhusudan Nanoti, Ram Bhagat Nautiyal, Kumar Sunil, Prasenjit Ghosh, Nisha, Pooja Yadav, Kumar Jagdish, Manish Tiwari, Meka Raja Rao, Nagarathinam Shengaga Murthy
  • Publication number: 20140042059
    Abstract: Disclosed is a process for production of benzene lean gasoline by recovery of high purity benzene from a narrow boiling benzene concentrated unprocessed cracked gasoline fraction. The process involves subjecting the feed material to an extractive distillation (ED) operation using an aromatic selective solvent in combination with a co-solvent.
    Type: Application
    Filed: August 9, 2013
    Publication date: February 13, 2014
    Inventors: Madhukar Onkarnath Garg, Shrikant Madhusudan Nanoti, Ram Bhagat Nautiyal, Kumar Sunil, Prasenjit Ghosh, Nisha, Pooja Yadav, Kumar Jagdish, Manish Tiwari, Meka Raja Rao, Nagarathinam Shengaga Murthy
  • Patent number: 7754839
    Abstract: Methods and compositions for the generation of quasi-living catalysts for homo-polymerization of olefins such as ethylene, ?-olefins and functionalized olefins and for the co-polymerization of olefins with functionalized monomers is disclosed. A process for producing these homo- and co-polymers is also disclosed. A polymeric material with enhanced hydrophilic properties, generated by the co-polymerization of ethylene with 5-norbornen-2-yl acetate, is also disclosed.
    Type: Grant
    Filed: March 3, 2003
    Date of Patent: July 13, 2010
    Assignee: The Regents of the University of California
    Inventors: Guillermo C. Bazan, Prasenjit Ghosh, Fumihiko Shimizu
  • Patent number: 7651971
    Abstract: A catalyst is disclosed for the polymerization and co-polymerization of olefins with functionalized monomers. The catalyst is formed from a combination of two neutral metal complexes, L(iPr2)M(CH2Ph)(PMe3) [L=N-(2,6-diisopropylphenyl)-2-(2,6-diisopropylphenylimino)propanamide] and M(COD)2 (COD=cyclooctadiene). The catalyst displays a unique mode of action and performs at ambient conditions producing high molecular weight polyolefins and co-polymers with functional groups. The polymerized olefins include ethylene, ?-olefins and functionalized olefins.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: January 26, 2010
    Inventors: Guillermo C. Bazan, Prasenjit Ghosh
  • Publication number: 20080051533
    Abstract: A catalyst is disclosed for the polymerization and co-polymerization of olefins with functionalized monomers. The catalyst is formed from a combination of two neutral metal complexes, L(iPr2)M(CH2Ph)(PMe3) [L=N-(2,6-diisopropylphenyl)-2-(2,6-diisopropylphenylimino)propanamide] and M(COD)2 (COD=cyclooctadiene). The catalyst displays a unique mode of action and performs at ambient conditions producing high molecular weight polyolefins and co-polymers with functional groups. The polymerized olefins include ethylene, ?-olefins and functionalized olefins.
    Type: Application
    Filed: August 20, 2007
    Publication date: February 28, 2008
    Inventors: Guillermo Bazan, Prasenjit Ghosh
  • Patent number: 7259214
    Abstract: A catalyst is disclosed for the polymerization and co-polymerization of olefins with functionalized monomers. The catalyst is formed from a combination of two neutral metal complexes, L(iPr2)M(CH2Ph)(PMe3)[L=N-(2,6-diisopropylphenyl)-2-(2,6-diisopropylphenylimino)propanamide] and M(COD)2(COD=cyclooctadiene). The catalyst displays a unique mode of action and performs at ambient conditions producing high molecular weight polyolefins and co-polymers with functional groups. The polymerized olefins include ethylene, ?-olefins and functionalized olefins.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: August 21, 2007
    Assignee: The Regents of the University of California
    Inventors: Guillermo C. Bazan, Prasenjit Ghosh
  • Publication number: 20040171479
    Abstract: A catalyst is disclosed for the polymerization and co-polymerization of olefins with functionalized monomers. The catalyst is formed from a combination of two neutral metal complexes, L(iPr2)M(CH2Ph)(PMe3)[L=N-(2,6-diisopropylphenyl)-2-(2,6-diisopropylphenylimino)propanamide] and M(COD)2(COD=cyclooctadiene). The catalyst displays a unique mode of action and performs at ambient conditions producing high molecular weight polyolefins and co-polymers with functional groups. The polymerized olefins include ethylene, &agr;-olefins and functionalized olefins.
    Type: Application
    Filed: February 28, 2003
    Publication date: September 2, 2004
    Inventors: Guillermo C. Bazan, Prasenjit Ghosh
  • Publication number: 20040024149
    Abstract: Methods and compositions for the generation of quasi-living catalysts for homo-polymerization of olefins such as ethylene, &agr;-olefins and functionalized olefins and for the co-polymerization of olefins with functionalized monomers is disclosed. A process for producing these homo- and co-polymers is also disclosed. A polymeric material with enhanced hydrophilic properties, generated by the co-polymerization of ethylene with 5-norbornen-2-yl acetate, is also disclosed.
    Type: Application
    Filed: March 3, 2003
    Publication date: February 5, 2004
    Inventors: Guillermo C. Bazan, Prasenjit Ghosh, Fumihiko Shimizu