Patents by Inventor Debojyoti CHAKRABORTY

Debojyoti CHAKRABORTY 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: 11970699
    Abstract: Engineered FnCas9 variants are provided that have an enhanced kinetic activity and a broader PAM recognition. The protein engineering methodology introduced specific mutations that stabilized interaction between Cas9 enzyme and target DNA. The enhanced kinetic activity increases NHEJ-mediated editing, owing to more efficient DSB generation potential than WT FnCas9, and the broadened PAM specificity increases the target range of FnCas9 variants. Thus, the scope and accessibility of CRISPR-Cas9 system targets are widened, along with generating robust and highly specific engineered FnCas9 variants.
    Type: Grant
    Filed: October 25, 2022
    Date of Patent: April 30, 2024
    Assignee: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Debojyoti Chakraborty, Souvik Maiti, Sundaram Acharya
  • Publication number: 20230146664
    Abstract: Engineered FnCas9 variants are provided that have an enhanced kinetic activity and a broader PAM recognition. The protein engineering methodology introduced specific mutations that stabilized interaction between Cas9 enzyme and target DNA. The enhanced kinetic activity increases NHEJ-mediated editing, owing to more efficient DSB generation potential than WT FnCas9, and the broadened PAM specificity increases the target range of FnCas9 variants. Thus, the scope and accessibility of CRISPR-Cas9 system targets are widened, along with generating robust and highly specific engineered FnCas9 variants.
    Type: Application
    Filed: October 25, 2022
    Publication date: May 11, 2023
    Applicants: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH, DEPARTMENT OF BIOLOGICAL SCIENCES, GRADUATE SCHOOL OF SCIENCE, THE UNIVERSITY OF TOKYO
    Inventors: Debojyoti CHAKRABORTY, Souvik MAITI, Osamu NUREKI, Hiroshi NISHIMASU, Sundaram ACHARYA, Seichi HIRANO, Hirano Hisato
  • Publication number: 20230031670
    Abstract: The invention describes a kit for detection of a target polynucleotide using a CRISPR effector system that comprises CAS9 from Francisella novicida, a synthetic sgRNA and a detection scheme based on binding and subsequent enzymatic cleavage of the target polynucleotide. The invention also describes a method for detection of a target polynucleotide using the kit. The kit can be el applied to both pathogenic and non-pathogenic polynucleotides and can be used to distinguish polynucleotides different by a single mismatch without the need for sequencing. The kit can also be used for detection of COVID-19. The kit is economical, easy to assemble and provides a robust and rapid readout that can be appropriately adapted for point of care applications.
    Type: Application
    Filed: December 1, 2020
    Publication date: February 2, 2023
    Inventors: Debojyoti Chakraborty, Souvk Maiti, Mohammad Azhar, Rhythm Phutela, Namrata Sharma, Dipanjali Sinha, Saumya Sharma, Arpit Mishra, Asgar Hussain Ansari
  • Publication number: 20230001920
    Abstract: Method and system for narrow passage path sampling based on levy flight is disclosed. The disclosed technique is an improvisation of Random Walk to Surface (RWS), wherein, instead of performing a random walk, the disclosed technique utilizes levy flight mechanism to identify samples in narrow passages (on the obstacle boundaries). The disclosed technique for identification of narrow passages sampling points in the narrow passage is based on several techniques that include random uniform sampling technique, a levy flight function (step size) and a collision detection technique. Moreover, in addition to identification of narrow passages sampling points, the disclosed technique also performs an additional check to ensure that the identified narrow passages sampling points are present in the narrow passage based on a levy flight bridge sampler technique.
    Type: Application
    Filed: May 4, 2022
    Publication date: January 5, 2023
    Applicant: Tata Consultancy Services Limited
    Inventors: SHUBHAM SHUKLA, DEBOJYOTI CHAKRABORTY, TITAS BERA, RANJAN DASGUPTA, LOKESH KUMAR
  • Publication number: 20220156674
    Abstract: An auction-based bid generation technique is a NP-hard problem and is not suitable for real-time scheduling of multi-agents. The embodiments thus provide a system and method for scheduling a set of tasks among a plurality of agents. Herein, agents self-allocate tasks among themselves dynamically in a distributed fashion, following an ordered sequence of agent indexes. The motivation of following the ordered sequence of agent indexes is allowing each agent to select its best strategy once by exploiting the greedy characteristic of the agent. The preferred agent (based on the ordered sequence) self-allocates tasks among multiple based on the minimum L2 Norm between task attributes and agent attributes, results in a strategy. The strategy offered by a sequence needs to satisfy constraints. A heuristic reward function for each strategy is proposed. Based on these rewards, agents reach consensus by playing an exact potential game for scheduling tasks among the agents.
    Type: Application
    Filed: March 2, 2021
    Publication date: May 19, 2022
    Applicant: Tata Consultancy Services Limited
    Inventors: Arup Kumar SADHU, Debojyoti CHAKRABORTY, Titas BERA