Patents by Inventor Sujeet Kumar

Sujeet Kumar 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: 20230290925
    Abstract: Silicon oxide based materials, including composites with various electrical conductive compositions, are formulated into desirable anodes. The anodes can be effectively combined into lithium ion batteries with high capacity cathode materials. In some formulations, supplemental lithium can be used to stabilize cycling as well as to reduce effects of first cycle irreversible capacity loss. Batteries are described with surprisingly good cycling properties with good specific capacities with respect to both cathode active weights and anode active weights.
    Type: Application
    Filed: May 12, 2023
    Publication date: September 14, 2023
    Inventors: Haixia Deng, Yongbong Han, Charan Masarapu, Yogesh Kumar Agunchamy, Herman A. Lopez, Sujeet Kumar
  • Publication number: 20230290543
    Abstract: The present invention relates to a telecommunication cable (100) comprising a plurality of twisted pairs (102) stranded helically around a cable axis, at least two tapes (104, 106) helically wrapped around the plurality of twisted pairs (102) such that that the at least two tapes (104, 106) overlap over the plurality of twisted pair (102), and a sheath (114) encapsulating the at least two tapes (104, 106) wrapped around the plurality of twisted pair (102). In particular, a ratio of first lay length of a first specific twisted pair to second lay length of a second specific twisted pair is in the range of 0.8 to 1.2. Furthermore, a ratio of first lay length of a first specific twisted pair to second lay length of a second specific twisted pair is in the range of 0.5 to 1.5.
    Type: Application
    Filed: February 15, 2023
    Publication date: September 14, 2023
    Inventors: Darshana Bhatt, Sujeet Kumar
  • Patent number: 11742474
    Abstract: Improved negative electrodes can comprise a silicon based active material blended with graphite to provide more stable cycling at high energy densities. In some embodiments, the negative electrodes comprise a blend of polyimide binder mixed with a more elastic polymer binder with a nanoscale carbon conductive additive. The silicon-based blended graphite negative electrodes can be matched with positive electrodes comprising nickel rich lithium nickel manganese cobalt oxides to form high energy density cells with good cycling properties.
    Type: Grant
    Filed: July 8, 2021
    Date of Patent: August 29, 2023
    Assignee: Zenlabs Energy, Inc.
    Inventors: Subramanian Venkatachalam, Sanjeev Sharma, Xianyu Iris Li, Pedro A. Hernandez-Gallegos, Charan Masarapu, Sujeet Kumar, Herman A. Lopez
  • Patent number: 11646407
    Abstract: Composite silicon based materials are described that are effective active materials for lithium ion batteries. The composite materials comprise processed, e.g., high energy mechanically milled, silicon suboxide and graphitic carbon in which at least a portion of the graphitic carbon is exfoliated into graphene sheets. The composite materials have a relatively large surface area, a high specific capacity against lithium, and good cycling with lithium metal oxide cathode materials. The composite materials can be effectively formed with a two-step high energy mechanical milling process. In the first milling process, silicon suboxide can be milled to form processed silicon suboxide, which may or may not exhibit crystalline silicon x-ray diffraction. In the second milling step, the processed silicon suboxide is milled with graphitic carbon. Composite materials with a high specific capacity and good cycling can be obtained in particular with balancing of the processing conditions.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: May 9, 2023
    Assignee: Zenlabs Energy, Inc.
    Inventors: Yogesh Kumar Anguchamy, Haixia Deng, Yongbong Han, Charan Masarapu, Sujeet Kumar, Herman A. Lopez
  • Publication number: 20230115335
    Abstract: The inventors have used a differential nuclear staining (DNS) assay to discover compounds with cytotoxic activity against the CEM cell line that has been determined to be highly sensitive to a variety of anti-cancer compounds. Compounds were synthesized based on a pyrazole backbone structure. Several newly synthesized compounds have been tested to identify the compounds with highest activity. One compound identified is the SSK-3 compound which has been tested on cancer cell lines and determined that it induced apoptosis via phosphatidylserine membrane exposure and activation of caspase 3 in the CEM lymphoma cell line.
    Type: Application
    Filed: October 12, 2022
    Publication date: April 13, 2023
    Inventors: Renato J. Aguilera, Subhas S. Karki, Sujeet Kumar, Manuel L. Penichet
  • Publication number: 20230085778
    Abstract: Electrolytes are described that involve lithium salt blends and compatible nonaqueous solvents that provide to high rate performance, charging and discharging, of lithium ion cells using silicon-based active materials, such as silicon suboxide composites, for example, silicon oxide/silicon/carbon composites. The lithium salts generally were a blend of LiPF6, and LiFSI or LiTFSI. The solvents generally comprised fluoroethylene carbonate and dimethyl carbonate with optional cosolvents and/or other additives.
    Type: Application
    Filed: September 8, 2022
    Publication date: March 23, 2023
    Inventors: Kevin Hays, Ayyappan Elangovan, Sujeet Kumar, Herman A. Lopez
  • Publication number: 20230034392
    Abstract: A system and method for facilitating data sharing between a first organization and a second organization. The method encompasses initiating, a secure network link between a digital platform of the first organization and the second organization. The method further comprises identifying, a first set of customer identifiers. Thereafter the method comprises receiving, a second bloom filter at the digital platform of the first organization. The method further comprises identifying, a first set of uncommon customers between the first organization and the second organization based on the second bloom filter and the first set of customer identifiers. Thereafter the method encompasses creating, a third bloom filter for the first set of uncommon customers. The method further comprises identifying, at the digital platform of the first organization, a first set of potentially common customers based at least on the third bloom filter and the first set of customer identifiers.
    Type: Application
    Filed: July 12, 2022
    Publication date: February 2, 2023
    Applicant: Flipkart Internet Private Limited
    Inventors: Pradyot H ADAVI, Pradeep SRINIVASAN, Sujeet KUMAR
  • Publication number: 20220384778
    Abstract: Supplemental lithium can be used to stabilize lithium ion batteries with lithium rich metal oxides as the positive electrode active material. Dramatic improvements in the specific capacity at long cycling have been obtained. The supplemental lithium can be provided with the negative electrode, or alternatively as a sacrificial material that is subsequently driven into the negative electrode active material. The supplemental lithium can be provided to the negative electrode active material prior to assembly of the battery using electrochemical deposition. The positive electrode active materials can comprise a layered-layered structure comprising manganese as well as nickel and/or cobalt.
    Type: Application
    Filed: July 12, 2022
    Publication date: December 1, 2022
    Inventors: Shabab Amiruddin, Subramanian Venkatachalam, Bing Li, Herman A. Lopez, Sujeet Kumar
  • Patent number: 11502299
    Abstract: Improved high energy capacity designs for lithium ion batteries are described that take advantage of the properties of high specific capacity anode active compositions and high specific capacity cathode active compositions. In particular, specific electrode designs provide for achieving very high energy densities. Furthermore, the complex behavior of the active materials is used advantageously in a radical electrode balancing design that significantly reduced wasted electrode capacity in either electrode when cycling under realistic conditions of moderate to high discharge rates and/or over a reduced depth of discharge.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: November 15, 2022
    Assignee: Zenlabs Energy, Inc.
    Inventors: Charan Masarapu, Haixia Deng, Yongbong Han, Yogesh Kumar Anguchamy, Subramanian Venkatachalam, Sujeet A. Kumar, Herman A. Lopez
  • Patent number: 11476494
    Abstract: Battery designs are provided that exhibit commercially suitable cycling properties for consumer electronics with silicon based active materials in the electrodes. The batteries can have stacked or wound electrodes and suitable electrode designs.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: October 18, 2022
    Assignee: Zenlabs Energy, Inc.
    Inventors: Shabab Amiruddin, Bing Li, Swapnil J. Dalavi, Sujeet Kumar
  • Publication number: 20220255122
    Abstract: Battery designs are provided that exhibit commercially suitable cycling properties for consumer electronics with silicon based active materials in the electrodes. The batteries can have stacked or wound electrodes and suitable electrode designs.
    Type: Application
    Filed: April 13, 2022
    Publication date: August 11, 2022
    Inventors: Shabab Amiruddin, Bing Li, Swapnil J. Dalavi, Sujeet Kumar
  • Publication number: 20220246902
    Abstract: Silicon oxide based materials, including composites with various electrical conductive compositions, are formulated into desirable anodes. The anodes can be effectively combined into lithium ion batteries with high capacity cathode materials. In some formulations, supplemental lithium can be used to stabilize cycling as well as to reduce effects of first cycle irreversible capacity loss. Batteries are described with surprisingly good cycling properties with good specific capacities with respect to both cathode active weights and anode active weights.
    Type: Application
    Filed: April 13, 2022
    Publication date: August 4, 2022
    Inventors: Haixia Deng, Yongbong Han, Charan Masarapu, Yogesh Kumar Anguchamy, Herman A. Lopez, Sujeet Kumar
  • Patent number: 11387440
    Abstract: Improved high energy capacity designs for lithium ion batteries are described that take advantage of the properties of high specific capacity anode active compositions and high specific capacity cathode active compositions. In particular, specific electrode designs provide for achieving very high energy densities. Furthermore, the complex behavior of the active materials is used advantageously in a radical electrode balancing design that significantly reduced wasted electrode capacity in either electrode when cycling under realistic conditions of moderate to high discharge rates and/or over a reduced depth of discharge.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: July 12, 2022
    Assignee: Zenlabs Energy, Inc.
    Inventors: Charan Masarapu, Yogesh Kumar Anguchamy, Yongbong Han, Haixia Deng, Sujeet Kumar, Herman A. Lopez
  • Patent number: 11380883
    Abstract: Supplemental lithium can be used to stabilize lithium ion batteries with lithium rich metal oxides as the positive electrode active material. Dramatic improvements in the specific capacity at long cycling have been obtained. The supplemental lithium can be provided with the negative electrode, or alternatively as a sacrificial material that is subsequently driven into the negative electrode active material. The supplemental lithium can be provided to the negative electrode active material prior to assembly of the battery using electrochemical deposition. The positive electrode active materials can comprise a layered-layered structure comprising manganese as well as nickel and/or cobalt.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: July 5, 2022
    Assignee: Zenlabs Energy, Inc.
    Inventors: Shabab Amiruddin, Subramanian Venkatachalam, Bing Li, Herman A. Lopez, Sujeet Kumar
  • Publication number: 20220209219
    Abstract: High capacity silicon based anode active materials are described for lithium ion batteries. These materials are shown to be effective in combination with high capacity lithium rich cathode active materials. Supplemental lithium is shown to improve the cycling performance and reduce irreversible capacity loss for at least certain silicon based active materials. In particular silicon based active materials can be formed in composites with electrically conductive coatings, such as pyrolytic carbon coatings or metal coatings, and composites can also be formed with other electrically conductive carbon components, such as carbon nanofibers and carbon nanoparticles. Additional alloys with silicon are explored.
    Type: Application
    Filed: March 17, 2022
    Publication date: June 30, 2022
    Inventors: Herman A. Lopez, Yogesh Kumar Anguchamy, Haixia Deng, Yongbong Han, Charan Masarapu, Subramanian Venkatachalam, Sujeet Kumar
  • Publication number: 20220118124
    Abstract: A photocrosslinkable hydrogel may comprise a radioisotope-labeled photocrosslinkable compound or a pharmaceutically acceptable salt thereof, which may be used as a composition for radiotherapy, a composition for radiodiagnostic imaging and a composition for anticancer treatment. The hydrogel is excellent in staying in a local area requiring radiation treatment, so that it can be treated while minimizing damage to surrounding tissues. In addition, it can be used in combination with an anticancer agent and used as a pharmaceutical composition for anticancer treatment, so that cancer can be effectively treated. The hydrogel can be manufactured on site immediately and conveniently using a portable microfluidic system, thereby maximizing the radiation treatment effect.
    Type: Application
    Filed: December 19, 2019
    Publication date: April 21, 2022
    Applicant: SNVIA CO., LTD.
    Inventors: Seung Yun YANG, Sodam KIM, Sang-Gu YIM, Sujeet KUMAR, Ajeesh CHANDRASEKHARAN
  • Patent number: 11309534
    Abstract: High capacity silicon based anode active materials are described for lithium ion batteries. These materials are shown to be effective in combination with high capacity lithium rich cathode active materials. Supplemental lithium is shown to improve the cycling performance and reduce irreversible capacity loss for at least certain silicon based active materials. In particular silicon based active materials can be formed in composites with electrically conductive coatings, such as pyrolytic carbon coatings or metal coatings, and composites can also be formed with other electrically conductive carbon components, such as carbon nanofibers and carbon nanoparticles. Additional alloys with silicon are explored.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: April 19, 2022
    Assignee: Zenlabs Energy, Inc.
    Inventors: Herman A. Lopez, Yogesh Kumar Anguchamy, Haixia Deng, Yongbong Han, Charan Masarapu, Subramanian Venkatachalam, Sujeet Kumar
  • Publication number: 20210399280
    Abstract: Supplemental lithium can be used to stabilize lithium ion batteries with lithium rich metal oxides as the positive electrode active material. Dramatic improvements in the specific capacity at long cycling have been obtained. The supplemental lithium can be provided with the negative electrode, or alternatively as a sacrificial material that is subsequently driven into the negative electrode active material. The supplemental lithium can be provided to the negative electrode active material prior to assembly of the battery using electrochemical deposition. The positive electrode active materials can comprise a layered-layered structure comprising manganese as well as nickel and/or cobalt.
    Type: Application
    Filed: September 7, 2021
    Publication date: December 23, 2021
    Inventors: Shabab Amiruddin, Subramanian Venkatachalam, Bing Li, Herman A. Lopez, Sujeet Kumar
  • Publication number: 20210336251
    Abstract: Improved negative electrodes can comprise a silicon based active material blended with graphite to provide more stable cycling at high energy densities. In some embodiments, the negative electrodes comprise a blend of polyimide binder mixed with a more elastic polymer binder with a nanoscale carbon conductive additive. The silicon-based blended graphite negative electrodes can be matched with positive electrodes comprising nickel rich lithium nickel manganese cobalt oxides to form high energy density cells with good cycling properties.
    Type: Application
    Filed: July 8, 2021
    Publication date: October 28, 2021
    Inventors: Subramanian Venkatachalam, Sanjeev Sharma, Xianyu Iris Li, Pedro A. Hernandez-Gallegos, Charan Masarapu, Sujeet Kumar, Herman A. Lopez
  • Patent number: 11094925
    Abstract: Improved negative electrodes can comprise a silicon based active material blended with graphite to provide more stable cycling at high energy densities. In some embodiments, the negative electrodes comprise a blend of polyimide binder mixed with a more elastic polymer binder with a nanoscale carbon conductive additive. The silicon-based blended graphite negative electrodes can be matched with positive electrodes comprising nickel rich lithium nickel manganese cobalt oxides to form high energy density cells with good cycling properties.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: August 17, 2021
    Assignee: Zenlabs Energy, Inc.
    Inventors: Subramanian Venkatachalam, Sanjeev Sharma, Xianyu Iris Li, Pedro A. Hernandez-Gallegos, Charan Masarapu, Sujeet Kumar, Herman A. Lopez