Patents by Inventor Sriram Iyer

Sriram Iyer 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: 20250125408
    Abstract: Set forth herein are pellets, thin films, and monoliths of lithium-stuffed garnet electrolytes having engineered surfaces. These engineered surfaces have a list of advantageous properties including, but not limited to, low surface area resistance, high Li+ ion conductivity, low tendency for lithium dendrites to form within or thereupon when the electrolytes are used in an electrochemical cell. Other advantages include voltage stability and long cycle life when used in electrochemical cells as a separator or a membrane between the positive and negative electrodes. Also set forth herein are methods of making these electrolytes including, but not limited to, methods of annealing these electrolytes under controlled atmosphere conditions. Set forth herein, additionally, are methods of using these electrolytes in electrochemical cells and devices. The instant disclosure further includes electrochemical cells which incorporate the lithium-stuffed garnet electrolytes set forth herein.
    Type: Application
    Filed: August 26, 2024
    Publication date: April 17, 2025
    Inventors: Arnold ALLENIC, Cheng-Chieh Chao, Lei Cheng, Niall Donnelly, William H. Gardner, Timothy Holme, Sriram Iyer, Shuang Li
  • Publication number: 20250125411
    Abstract: Provided herein are defect-free solid-state separators which are useful as Li+ ion-conducting electrolytes in electrochemical cells and devices, such as, but not limited to, rechargeable batteries. In some examples, the separators have a Li+ ion-conductivity greater than 1*10?3 S/cm at room temperature.
    Type: Application
    Filed: October 3, 2024
    Publication date: April 17, 2025
    Inventors: Cheng-Chieh CHAO, Zhebo CHEN, Lei CHENG, Niall DONNELLY, Timothy HOLME, Tommy HUANG, Sriram IYER, Kian KERMAN, Harsh MAHESHWARI, Jagdeep SINGH, Gengfu XU
  • Publication number: 20250090301
    Abstract: The present invention relates to treating or preventing stenosis at an anastomosis site. In one embodiment, the present invention is a stent is curved along the longitudinal axis for placement in and adjacent to the graft orifice. In a further embodiment, the stent is drug coated to allow delivery of antivasculoproliferative drugs directly to the vicinity of the graft orifice. In a further embodiment, the stent is expandable by use of an external wire. In another embodiment, the present invention is a kit comprising the specially configured stent together with a sleeve comprising a biocompatible matrix material and a pharmaceutical agent, wherein the sleeve is applied to the external surface of the vessel or graft, resulting in extravascular delivery of a pharmaceutical agent. Methods for treating or preventing stenosis at an anastomosis site by applying the extravascular sleeve and the intravascular stent are also provided.
    Type: Application
    Filed: November 27, 2024
    Publication date: March 20, 2025
    Inventors: Sriram Iyer, Gerald Dorros
  • Publication number: 20250079508
    Abstract: Set forth herein are garnet material compositions, e.g., lithium-stuffed garnets and lithium-stuffed garnets doped with alumina, which are suitable for use as electrolytes and catholytes in solid state battery applications. Also set forth herein are lithium-stuffed garnet thin films having fine grains therein. Disclosed herein are novel and inventive methods of making and using lithium-stuffed garnets as catholytes, electrolytes and/or anolytes for all solid state lithium rechargeable batteries. Also disclosed herein are novel electrochemical devices which incorporate these garnet catholytes, electrolytes and/or anolytes. Also set forth herein are methods for preparing novel structures, including dense thin (<50 um) free standing membranes of an ionically conducting material for use as a catholyte, electrolyte, and, or, anolyte, in an electrochemical device, a battery component (positive or negative electrode materials), or a complete solid state electrochemical energy storage device.
    Type: Application
    Filed: July 18, 2024
    Publication date: March 6, 2025
    Inventors: Oleh KARPENKO, Niall Donnelly, Timothy Holme, Will Hudson, Sriram Iyer, Dong Hee Anna Choi, Mohit Singh, Adrian Winoto
  • Publication number: 20250055027
    Abstract: Set forth herein are garnet material compositions, e.g., lithium-stuffed garnets and lithium-stuffed garnets doped with alumina, which are suitable for use as electrolytes and catholytes in solid state battery applications. Also set forth herein are lithium-stuffed garnet thin films having fine grains therein. Disclosed herein are novel and inventive methods of making and using lithium-stuffed garnets as catholytes, electrolytes and/or anolytes for all solid state lithium rechargeable batteries. Also disclosed herein are novel electrochemical devices which incorporate these garnet catholytes, electrolytes and/or anolytes. Also set forth herein are methods for preparing novel structures, including dense thin (<50 um) free standing membranes of an ionically conducting material for use as a catholyte, electrolyte, and, or, anolyte, in an electrochemical device, a battery component (positive or negative electrode materials), or a complete solid state electrochemical energy storage device.
    Type: Application
    Filed: August 16, 2024
    Publication date: February 13, 2025
    Inventors: Oleh Karpenko, Niall Donnelly, Timothy Holme, Will Hudson, Sriram Iyer, Dong Hee Anna Choi, Mohit Singh, Adrian Winoto
  • Publication number: 20240405264
    Abstract: The instant disclosure sets forth multiphase lithium-stuffed garnet electrolytes having secondary phase inclusions, wherein these secondary phase inclusions are material(s) which is/are not a cubic phase lithium-stuffed garnet, but which is/are entrapped or enclosed within a lithium-stuffed garnet. When the secondary phase inclusions described herein are included in a lithium-stuffed garnet at 30-0.1 volume %, the inclusions stabilize the multiphase matrix and allow for improved sintering of the lithium-stuffed garnet. The electrolytes described herein, which include lithium-stuffed garnet with secondary phase inclusions, have an improved sinterability and density compared to phase pure cubic lithium-stuffed garnet having the formula Li7La3Zr2O12.
    Type: Application
    Filed: June 5, 2024
    Publication date: December 5, 2024
    Inventors: Larry BECK, Cheng-Chieh Chao, Lei Cheng, Niall Donnelly, Willam H. Gardner, Timothy Holme, Will Hudson, Sriram Iyer, Oleh Karpenko, Yang Li, Gengfu Xu
  • Patent number: 12156799
    Abstract: The present invention relates to treating or preventing stenosis at an anastomosis site. In one embodiment, the present invention is a stent is curved along the longitudinal axis for placement in and adjacent to the graft orifice. In a further embodiment, the stent is drug coated to allow delivery of antivasculoproliferative drugs directly to the vicinity of the graft orifice. In a further embodiment, the stent is expandable by use of an external wire. In another embodiment, the present invention is a kit comprising the specially configured stent together with a sleeve comprising a biocompatible matrix material and a pharmaceutical agent, wherein the sleeve is applied to the external surface of the vessel or graft, resulting in extravascular delivery of a pharmaceutical agent. Methods for treating or preventing stenosis at an anastomosis site by applying the extravascular sleeve and the intravascular stent are also provided.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: December 3, 2024
    Assignee: Vascular Therapies, Inc.
    Inventors: Sriram Iyer, Gerald Dorros
  • Patent number: 12142727
    Abstract: Provided herein are detect-free solid-state separators which are useful as Li| ion-conducting electrolytes in electro-chemical cells and devices, such as, but not limited to, rechargeable batteries. In some examples, the separators have a Li+ ion-conductivity greater than 1*10?3 S/cm at room temperature.
    Type: Grant
    Filed: September 16, 2021
    Date of Patent: November 12, 2024
    Assignee: QuantumScape Battery, Inc.
    Inventors: Cheng-Chieh Chao, Zhebo Chen, Lei Cheng, Niall Donnelly, Tim Holme, Tommy Huang, Sriram Iyer, Kian Kerman, Harsh Maheshwari, Jagdeep Singh, Gengfu Xu
  • Publication number: 20240343652
    Abstract: Set forth herein are processes and materials for making ceramic thin films by casting ceramic source powders and precursor reactants, binders, and functional additives into unsintered thin films and subsequently sintering the thin films under controlled atmospheres and on specific substrates.
    Type: Application
    Filed: April 23, 2024
    Publication date: October 17, 2024
    Inventors: Oleh Karpenko, Gengfu Xu, Niall Donnelly, Sriram Iyer, Timothy Holme
  • Patent number: 12119444
    Abstract: Set forth herein are pellets, thin films, and monoliths of lithium-stuffed garnet electrolytes having engineered surfaces. These engineered surfaces have a list of advantageous properties including, but not limited to, low surface area resistance, high Li+ ion conductivity, low tendency for lithium dendrites to form within or thereupon when the electrolytes are used in an electrochemical cell. Other advantages include voltage stability and long cycle life when used in electrochemical cells as a separator or a membrane between the positive and negative electrodes. Also set forth herein are methods of making these electrolytes including, but not limited to, methods of annealing these electrolytes under controlled atmosphere conditions. Set forth herein, additionally, are methods of using these electrolytes in electrochemical cells and devices. The instant disclosure further includes electrochemical cells which incorporate the lithium-stuffed garnet electrolytes set forth herein.
    Type: Grant
    Filed: January 11, 2023
    Date of Patent: October 15, 2024
    Assignee: QuantumScape Battery, Inc.
    Inventors: Arnold Allenic, Cheng-Chieh Chao, Lei Cheng, Niall Donnelly, William H. Gardner, Timothy Holme, Sriram Iyer, Shuang Li
  • Patent number: 12111109
    Abstract: Setter plates are fabricated from Li-stuffed garnet materials having the same, or substantially similar, compositions as a garnet Li-stuffed solid electrolyte. The Li-stuffed garnet setter plates, set forth herein, reduce the evaporation of Li during a sintering treatment step and/or reduce the loss of Li caused by diffusion out of the sintering electrolyte. Li-stuffed garnet setter plates, set forth herein, maintain compositional control over the solid electrolyte during sintering when, upon heating, lithium is prone to diffuse out of the solid electrolyte.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: October 8, 2024
    Assignee: QuantumScape Battery, Inc.
    Inventors: Sriram Iyer, Tim Holme, Niall Donnelly
  • Patent number: 12095031
    Abstract: Set forth herein are garnet material compositions, e.g., lithium-stuffed garnets and lithium-stuffed garnets doped with alumina, which are suitable for use as electrolytes and catholytes in solid state battery applications. Also set forth herein are lithium-stuffed garnet thin films having fine grains therein. Disclosed herein are novel and inventive methods of making and using lithium-stuffed garnets as catholytes, electrolytes and/or anolytes for all solid state lithium rechargeable batteries. Also disclosed herein are novel electrochemical devices which incorporate these garnet catholytes, electrolytes and/or anolytes. Also set forth herein are methods for preparing novel structures, including dense thin (<50 um) free standing membranes of an ionically conducting material for use as a catholyte, electrolyte, and, or, anolyte, in an electrochemical device, a battery component (positive or negative electrode materials), or a complete solid state electrochemical energy storage device.
    Type: Grant
    Filed: April 12, 2023
    Date of Patent: September 17, 2024
    Assignee: QuantumScape Battery, Inc.
    Inventors: Oleh Karpenko, Niall Donnelly, Timothy Holme, Will Hudson, Sriram Iyer, Dong Hee Anna Choi, Mohit Singh, Adrian Winoto
  • Patent number: 12084387
    Abstract: Set forth herein are processes and materials for making ceramic thin films by casting ceramic source powders and precursor reactants, binders, and functional additives into unsintered thin films and subsequently sintering the thin films under controlled atmospheres and on specific substrates.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: September 10, 2024
    Assignee: QuantumScape Battery, Inc.
    Inventors: Oleh Karpenko, Gengfu Xu, Niall Donnelly, Sriram Iyer, Tim Holme
  • Patent number: 12074281
    Abstract: The instant disclosure sets forth multiphase lithium-stuffed garnet electrolytes having secondary phase inclusions, wherein these secondary phase inclusions are material(s) which is/are not a cubic phase lithium-stuffed garnet but which is/are entrapped or enclosed within a lithium-stuffed garnet. When the secondary phase inclusions described herein are included in a lithium-stuffed garnet at 30-0.1 volume %, the inclusions stabilize the multiphase matrix and allow for improved sintering of the lithium-stuffed garnet. The electrolytes described herein, which include lithium-stuffed garnet with secondary phase inclusions, have an improved sinterability and density compared to phase pure cubic lithium-stuffed garnet having the formula Li7La3Zr2O12.
    Type: Grant
    Filed: October 6, 2022
    Date of Patent: August 27, 2024
    Inventors: Larry Beck, Cheng-Chieh Chao, Lei Cheng, Niall Donnelly, William H. Gardner, Tim Holme, Will Hudson, Sriram Iyer, Oleh Karpenko, Yang Li, Gengfu Xu
  • Patent number: 12067545
    Abstract: A real-time electronic bill presentment and payment system of a bill presentment and payment system (BPPS) provider is exposed to at least one of a business financial institution and an accounting software provider via an API. The BPP provider facilitates the institution or software provider providing a real-time electronic bill presentment and payment mobile application to a business. The BPPS obtains, via the API, from the institution or software provider, registration information relevant to the business. The real-time system populates a biller directory database with the registration information. No action, other than the facilitating, is required by the BPPS provider for the institution or software provider to obtain the registration information. In some instances, provision is made for loss of connectivity between the institution or software provider and the business and/or for alerts to the business.
    Type: Grant
    Filed: October 17, 2022
    Date of Patent: August 20, 2024
    Assignee: MASTERCARD INTERNATIONAL INCORPORATED
    Inventors: Ellen Moskowitz, Sebastien Galperti, Chhomthyda Chhuan, Sriram Iyer, Patricia Ryan
  • Publication number: 20240063429
    Abstract: Set forth herein are garnet material compositions, e.g., lithium-stuffed garnets and lithium-stuffed garnets doped with alumina, which are suitable for use as electrolytes and catholytes in solid state battery applications. Also set forth herein are lithium-stuffed garnet thin films having fine grains therein. Disclosed herein are novel and inventive methods of making and using lithium-stuffed garnets as catholytes, electrolytes and/or anolytes for all solid state lithium rechargeable batteries. Also disclosed herein are novel electrochemical devices which incorporate these garnet catholytes, electrolytes and/or anolytes. Also set forth herein are methods for preparing novel structures, including dense thin (<50 um) free standing membranes of an ionically conducting material for use as a catholyte, electrolyte, and, or, anolyte, in an electrochemical device, a battery component (positive or negative electrode materials), or a complete solid state electrochemical energy storage device.
    Type: Application
    Filed: April 12, 2023
    Publication date: February 22, 2024
    Inventors: Oleh KARPENKO, Niall Donnelly, Timothy Holme, Will Hudson, Sriram Iyer, Dong Hee Anna Choi, Mohit Singh, Adrian Winoto
  • Patent number: 11901506
    Abstract: The instant disclosure sets forth multiphase lithium-stuffed garnet electrolytes having secondary phase inclusions, wherein these secondary phase inclusions are material(s) which is/are not a cubic phase lithium-stuffed garnet but which is/are entrapped or enclosed within a lithium-stuffed garnet. When the secondary phase inclusions described herein are included in a lithium-stuffed garnet at 30-0.1 volume %, the inclusions stabilize the multiphase matrix and allow for improved sintering of the lithium-stuffed garnet. The electrolytes described herein, which include lithium-stuffed garnet with secondary phase inclusions, have an improved sinterability and density compared to phase pure cubic lithium-stuffed garnet having the formula Li7La3Zr2O12.
    Type: Grant
    Filed: March 30, 2022
    Date of Patent: February 13, 2024
    Assignee: QuantumScape Battery, Inc.
    Inventors: Larry Beck, Cheng-Chieh Chao, Lei Cheng, Niall Donnelly, William H. Gardner, Tim Holme, Will Hudson, Sriram Iyer, Oleh Karpenko, Yang Li, Gengfu Xu
  • Patent number: 11785027
    Abstract: A threat protection system provides for detecting links in a document and analyzing whether one of the detected links is a malicious link that may direct a user of the document to a malicious universal resource locator (URL). In one implementation of the described technology, when a user selects a link in a document, a link activation module calls a threat protection client module that performs a reputation check for the link. If the selected link is malicious, the threat protection client module sends a URL of a warning page to the link activation module.
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: October 10, 2023
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Varagur Karthikeyan Sriram Iyer, Willson Kulandai Raj David, Vinayak Goyal, Matthew Bryan Jeffries
  • Publication number: 20230231187
    Abstract: Set forth herein are pellets, thin films, and monoliths of lithium-stuffed garnet electrolytes having engineered surfaces. These engineered surfaces have a list of advantageous properties including, but not limited to, low surface area resistance, high Li+ ion conductivity, low tendency for lithium dendrites to form within or thereupon when the electrolytes are used in an electrochemical cell. Other advantages include voltage stability and long cycle life when used in electrochemical cells as a separator or a membrane between the positive and negative electrodes. Also set forth herein are methods of making these electrolytes including, but not limited to, methods of annealing these electrolytes under controlled atmosphere conditions. Set forth herein, additionally, are methods of using these electrolytes in electrochemical cells and devices. The instant disclosure further includes electrochemical cells which incorporate the lithium-stuffed garnet electrolytes set forth herein.
    Type: Application
    Filed: January 11, 2023
    Publication date: July 20, 2023
    Inventors: Arnold ALLENIC, Cheng-Chieh CHAO, Lei CHENG, Niall DONNELLY, William H. GARDNER, Timothy HOLME, Sriram IYER, Shuang LI
  • Patent number: 11658338
    Abstract: Set forth herein are garnet material compositions, e.g., lithium-stuffed garnets and lithium-stuffed garnets doped with alumina, which are suitable for use as electrolytes and catholytes in solid state battery applications. Also set forth herein are lithium-stuffed garnet thin films having fine grains therein. Disclosed herein are novel and inventive methods of making and using lithium-stuffed garnets as catholytes, electrolytes and/or anolytes for all solid state lithium rechargeable batteries. Also disclosed herein are novel electrochemical devices which incorporate these garnet catholytes, electrolytes and/or anolytes. Also set forth herein are methods for preparing novel structures, including dense thin (<50 um) free standing membranes of an ionically conducting material for use as a catholyte, electrolyte, and, or, anolyte, in an electrochemical device, a battery component (positive or negative electrode materials), or a complete solid state electrochemical energy storage device.
    Type: Grant
    Filed: March 30, 2022
    Date of Patent: May 23, 2023
    Assignee: QuantumScape Battery, Inc.
    Inventors: Oleh Karpenko, Niall Donnelly, Tim Holme, Will Hudson, Sriram Iyer, Dong Hee Anna Choi, Mohit Singh, Adrian Winoto