Patents by Inventor Arnab Chatterjee

Arnab Chatterjee 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: 11521281
    Abstract: This disclosure relates generally to method and system for performing negotiation task using reinforcement learning agents. Performing negotiation on a task is a complex decision making process and to arrive at consensus on contents of a negotiation task is often expensive and time consuming due to the negotiation terms and the negotiation parties involved. The proposed technique trains reinforcement learning agents such as negotiating agent and an opposition agent. These agents are capable of performing the negotiation task on a plurality of clauses to agree on common terms between the agents involved. The system provides modelling of a selector agent on a plurality of behavioral models of a negotiating agent and the opposition agent to negotiate against each other and provides a reward signal based on the performance. This selector agent emulate human behavior provides scalability on selecting an optimal contract proposal during the performance of the negotiation task.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: December 6, 2022
    Assignee: Tata Consultancy Services Limited
    Inventors: Vishal Sunder, Lovekesh Vig, Arnab Chatterjee, Gautam Shroff
  • Publication number: 20220349851
    Abstract: A solid-liquid contact electrification-based self-driving chemical sensor includes a container, a contact liquid, an electrode, a solid triboelectric layer, a rectifier, a load, and a displacement device. The contact liquid is placed in the container. The electrode may be actively or passively moved into the container to be immersed in or emerged from the contact liquid. The solid triboelectric layer surrounds and covers a surface of the electrode. The solid triboelectric layer includes a sensing layer which becomes a reacted sensing layer by reacting to a target analyte. The rectifier and the load are connected to the electrode. The displacement device is connected to the electrode or the container to perform a periodic reciprocating motion, so that the solid triboelectric layer is in contact with and separated from the contact liquid, thereby generating a surface charge transfer to generate an electrical output signal.
    Type: Application
    Filed: June 23, 2021
    Publication date: November 3, 2022
    Applicant: National Tsing Hua University
    Inventors: Zong-Hong Lin, Yu-Ping Pao, Subhodeep Chatterjee, Arnab Pal, Yu-Zih Lin
  • Publication number: 20220274980
    Abstract: Provided herein are compounds, pharmaceutical compositions, and methods for inhibiting the ENL YEATS domain. Further, provided herein are compounds, pharmaceutical compositions, and methods for the treatment of leukemia.
    Type: Application
    Filed: July 29, 2020
    Publication date: September 1, 2022
    Inventors: Michael A. Erb, Dennis Wolan, Seiya Kitamura, Arnab Chatterjee
  • Publication number: 20220093249
    Abstract: In presence of high-cardinality treatment variables, number of counterfactual outcomes to be estimated is much larger than number of factual observations, rendering the problem to be ill-posed. Furthermore, lack of information regarding the confounders among large number of covariates pose challenges in handling confounding bias. Essential is to find lower-dimensional manifold where an equivalent problem of causal inference can be posed, and counterfactual outcomes can be computed.
    Type: Application
    Filed: July 13, 2021
    Publication date: March 24, 2022
    Applicant: Tata Consultancy Services Limited
    Inventors: ANKIT SHARMA, GARIMA GUPTA, RANJITHA PRASAD, ARNAB CHATTERJEE, LOVEKESH VIG, GAUTAM SHROFF
  • Publication number: 20210326727
    Abstract: Causality is a crucial paradigm in several domains where observational data is available. Primary goal of Causal Inference (CI) is to uncover cause-effect relationship between entities. Conventional methods face challenges in providing an accurate CI framework due to cofounding and selection bias in multiple treatment scenario. The present disclosure computes a Propensity Score (PS) from a received CI data for the plurality of subjects under test for a treatment. A Generalized Propensity Score (GPS) is computed for a plurality of treatments corresponding to the plurality of subjects by using the PS. Further, a plurality of task batches are created using the GPS and given as input to the DNN for training. Errors in factual data and in balancing representation of the DNN are rectified using a novel loss function. The trained DNN is further used for predicting the counter factual treatment response corresponding to the factual treatment data.
    Type: Application
    Filed: March 2, 2021
    Publication date: October 21, 2021
    Applicant: Tata Consultancy Services Limited
    Inventors: Garima GUPTA, Ankit SHARMA, Ranjitha PRASAD, Arnab CHATTERJEE, Lovekesh VIG, Gautam SHROFF
  • Publication number: 20210310307
    Abstract: A method of geosteering in a wellbore construction process uses an earth model that defines boundaries between formation layers and petrophysical properties of the formation layers in a subterranean formation. Sensor measurements related to the wellbore construction process are inputted to the earth model. An estimate is obtained for a relative geometrical and geological placement of the well path with respect to a geological objective using a trained reinforcement learning agent. An output action based on the sensor measurement for influencing a future profile of the well path with respect to the estimate.
    Type: Application
    Filed: July 30, 2019
    Publication date: October 7, 2021
    Inventors: Neilkunal PANCHAL, Sami Mohammed Khair SULTAN, Jeremy Paul VILA, Minith Bharat JAIN, David THANOON, Misael Jacobo UZCATEGUI DIAZ, Arnab CHATTERJEE
  • Publication number: 20200020061
    Abstract: This disclosure relates generally to method and system for performing negotiation task using reinforcement learning agents. Performing negotiation on a task is a complex decision making process and to arrive at consensus on contents of a negotiation task is often expensive and time consuming due to the negotiation terms and the negotiation parties involved. The proposed technique trains reinforcement learning agents such as negotiating agent and an opposition agent. These agents are capable of performing the negotiation task on a plurality of clauses to agree on common terms between the agents involved. The system provides modelling of a selector agent on a plurality of behavioral models of a negotiating agent and the opposition agent to negotiate against each other and provides a reward signal based on the performance. This selector agent emulate human behavior provides scalability on selecting an optimal contract proposal during the performance of the negotiation task.
    Type: Application
    Filed: July 12, 2019
    Publication date: January 16, 2020
    Applicant: Tata Consultancy Services Limited
    Inventors: Vishal SUNDER, Lovekesh VIG, Arnab CHATTERJEE, Gautam SHROFF
  • Patent number: 8926737
    Abstract: The present invention provides a process for purifying natural gas, comprising removing mercaptans from a natural gas stream by a combination of an amine-based separation unit and a selective oxidation unit to obtain a purified natural gas stream, wherein at least part of the mercaptans are converted into at least elemental sulphur in the selective oxidation unit by selective catalytic oxidation.
    Type: Grant
    Filed: November 26, 2009
    Date of Patent: January 6, 2015
    Assignee: Shell Oil Company
    Inventors: Arnab Chatterjee, Carolus Matthias Anna Maria Mesters, Ronald Jan Schoonebeek, Eri Ito
  • Patent number: 8524189
    Abstract: The present invention provides a process for the selective oxidation of hydrogen sulphide contained in a hydrogen sulphide-containing hydrocarbon feed gas to elemental sulphur. The hydrogen sulphide-containing hydrocarbon feed gas and a sulphur dioxide-containing gas are supplied to a reaction zone containing a TiO2-comprising catalyst, wherein elemental sulphur and a gaseous stream depleted in hydrogen sulphide are formed. The gas feeds are contacted with the TiO2 containing catalyst at elevated pressure and at a temperature in the range of from 120 and below 160 ° C., under such conditions that the elemental sulphur formed is essentially in liquid form. At least part of the sulphur dioxide-containing gas is obtained by combusting elemental sulphur to obtain a gaseous mixture of sulphur dioxide and nitrogen and then concentrating the gaseous mixture to provide the sulphur dioxide-containing gas.
    Type: Grant
    Filed: November 26, 2009
    Date of Patent: September 3, 2013
    Assignee: Shell Oil Company
    Inventors: Arnab Chatterjee, Carolus Matthias Anna Maria Mesters, Ronald Jan Schoonebeek
  • Patent number: 8268996
    Abstract: The invention provides compounds, pharmaceutical compositions comprising such compounds and methods of using such compounds to treat or prevent diseases or disorders associated with the activity of Cathepsin S.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: September 18, 2012
    Assignee: IRM LLC
    Inventors: Hong Liu, David C. Tully, Arnab Chatterjee, Phillip B. Alper, David H. Woodmansee, Daniel Mutnick
  • Patent number: 8153671
    Abstract: The invention provides a novel class of compounds, pharmaceutical compositions comprising such compounds and methods of using such compounds to treat or prevent diseases or disorders associated with abnormal or deregulated TPO activity, particularly diseases or disorders that involve thrombocytopenia.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: April 10, 2012
    Assignee: IRM LLC
    Inventors: Phillip B. Alper, Thomas Marsilje, Arnab Chatterjee, Wenshuo Lu, Daniel Mutnick, Michael Roberts, Yun He
  • Publication number: 20110274604
    Abstract: The present invention provides a process for the selective oxidation of hydrogen sulphide contained in a hydrogen sulphide-containing hydrocarbon feed gas to elemental sulphur. The hydrogen sulphide-containing hydrocarbon feed gas and a sulphur dioxide-containing gas are supplied to a reaction zone containing a TiO2-comprising catalyst, wherein elemental sulphur and a gaseous stream depleted in hydrogen sulphide are formed. The gas feeds are contacted with the TiO2 containing catalyst at elevated pressure and at a temperature in the range of from 120 and below 160° C., under such conditions that the elemental sulphur formed is essentially in liquid form. At least part of the sulphur dioxide-containing gas is obtained by combusting elemental sulphur to obtain a gaseous mixture of sulphur dioxide and nitrogen and then concentrating the gaseous mixture to provide the sulphur dioxide-containing gas.
    Type: Application
    Filed: November 26, 2008
    Publication date: November 10, 2011
    Inventors: Arnab Chatterjee, Carolus Matthias Anna Maria Mesters, Ronald Jan Schoonebeek
  • Publication number: 20110265380
    Abstract: The present invention provides a process for purifying natural gas, comprising removing mercaptans from a natural gas stream by a combination of an amine-based separation unit and a selective oxidation unit to obtain a purified natural gas stream, wherein at least part of the mercaptans are converted into at least elemental sulphur in the selective oxidation unit by selective catalytic oxidation.
    Type: Application
    Filed: November 26, 2009
    Publication date: November 3, 2011
    Inventors: Arnab Chatterjee, Carolus Matthias Anna Maria Mesters, Ronald Jan Schoonebeek, Eri Ito
  • Publication number: 20110245243
    Abstract: The invention provides compounds, pharmaceutical compositions comprising such compounds and methods of using such compounds to treat or prevent diseases or disorders associated with the activity of Cathepsin S.
    Type: Application
    Filed: June 16, 2011
    Publication date: October 6, 2011
    Inventors: Hong LIU, David C. TULLY, Arnab CHATTERJEE, Phillip B. ALPER, David H. WOODMANSEE, Daniel MUTNICK
  • Patent number: 7985749
    Abstract: The invention provides compounds, pharmaceutical compositions comprising such compounds and methods of using such compounds to treat or prevent diseases or disorders associated with the activity of Cathepsin S.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: July 26, 2011
    Assignee: Novartis AG
    Inventors: Hong Liu, David C. Tully, Arnab Chatterjee, Phillip B. Alper, David H. Woodmansee, Daniel Mutnick
  • Publication number: 20100204200
    Abstract: The present invention provides compounds, compositions and methods for the selective inhibition of cathepsin S. In a preferred aspect, cathepsin S is selectively inhibited in the presence of at least one other cathepsin isozyme. The present invention also provides methods for treating a disease state in a subject by selectively inhibiting cathepsin S. More particularly, the present invention provides compounds having Formula 1: wherein Q is an optionally substituted azetidinyl, pyrrolidinyl, piperidyl, and indolinyl; or Q is NR25R26; and A, R5, R6, R7, R8, R9, R25, R26 and Ar are substituents.
    Type: Application
    Filed: April 21, 2010
    Publication date: August 12, 2010
    Applicant: IRM LLC
    Inventors: Hong Liu, Arnab Chatterjee, David C. Tully, Phillip Alper, Badry Bursulaya, Jianhua Guo, David H. Woodmansee, Daniel Mutnick, Donald S. Karanewsky, Yun He
  • Publication number: 20100028199
    Abstract: A process for improving the smell of a stream of elemental sulphur comprising an organic polysulphide and/or a thiol, the process comprising the following step: (a) heating the stream of liquid elemental sulphur comprising an organic polysulphide and/or a thiol at a heating temperature in the range of from 360 to 700° C., at a pressure that is sufficient to maintain a liquid elemental sulphur phase to obtain heat-treated elemental sulphur.
    Type: Application
    Filed: October 3, 2007
    Publication date: February 4, 2010
    Inventors: Arnab Chatterjee, Carolus Matthias Anna Maria Mesters, Ronald Jan Schoonebeek
  • Publication number: 20090075996
    Abstract: The invention provides a novel class of compounds, pharmaceutical compositions comprising such compounds and methods of using such compounds to treat or prevent diseases or disorders associated with abnormal or deregulated TPO activity, particularly diseases or disorders that involve thrombocytopenia.
    Type: Application
    Filed: July 14, 2006
    Publication date: March 19, 2009
    Applicant: Irm LLC
    Inventors: Phillip B. Alper, Thomas Marsilje, Arnab Chatterjee, Wenshuo Lu, Daniel Mutnick, Michael Roberts, Yun He
  • Patent number: 7501408
    Abstract: The present invention provides compounds, compositions and methods for the selective inhibition of cathepsin S. In a preferred aspect, cathepsin S is selectively inhibited in the presence of at least one other cathepsin isozyme. The present invention also provides methods for treating a disease state in a subject by selectively inhibiting cathepsin S. More particularly, the present invention provides compounds having Formula (I): wherein Q is thiomorpholinyl; and A, R5, R6, R7, R8, R9 and Ar are substituents.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: March 10, 2009
    Assignee: IRM LLC
    Inventors: Hong Liu, Arnab Chatterjee, David C. Tully, Phillip Alper, Badry Bursulaya, Jianhua Guo, David H. Woodmansee, Daniel Mutnick, Donald S. Karanewsky, Yun He
  • Publication number: 20080242671
    Abstract: The present invention provides compounds, compositions and methods for the selective inhibition of cathepsin S. In a preferred aspect, cathepsin S is selectively inhibited in the presence of at least one other cathepsin isozyme. The present invention also provides methods for treating a disease state in a subject by selectively inhibiting cathepsin S.
    Type: Application
    Filed: March 25, 2008
    Publication date: October 2, 2008
    Applicant: IRM LLC
    Inventors: Hong Liu, Phillip Alper, Arnab Chatterjee, David Tully, Badry Bursulaya, David Woodmansee, Robert Epple, Jennifer Leslie Harris, Jun Li