Patents by Inventor Naveen Prabhu Shanmugam

Naveen Prabhu Shanmugam 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: 20240088455
    Abstract: Disclosed herein are novel or improved separators, battery separators, lead battery separators, batteries, cells, and/or methods of manufacture and/or use of such separators, battery separators, lead battery separators, cells, and/or batteries. In accordance with at least certain embodiments, the present disclosure or invention is directed to novel or improved battery separators for lead acid batteries. In addition, disclosed herein are methods, systems and battery separators for enhancing battery life, reducing active material shedding, reducing grid and spine corrosion, reducing failure rate reducing acid stratification and/or improving uniformity in at least lead acid batteries, in particular batteries for electric rickshaws. In accordance with at least particular embodiments, the present disclosure or invention is directed to an improved separator for lead acid batteries wherein the separator includes improved membrane profiles, improved coatings, improved configurations, and/or the like.
    Type: Application
    Filed: November 20, 2023
    Publication date: March 14, 2024
    Inventors: Surendra Kumar Mittal, Naveen Prabhu Shanmugam
  • Patent number: 11862769
    Abstract: Disclosed herein are novel or improved separators, battery separators, lead battery separators, batteries, cells, and/or methods of manufacture and/or use of such separators, battery separators, lead battery separators, cells, and/or batteries. In accordance with at least certain embodiments, the present disclosure or invention is directed to novel or improved battery separators for lead acid batteries. In addition, disclosed herein are methods, systems and battery separators for enhancing battery life, reducing active material shedding, reducing grid and spine corrosion, reducing failure rate reducing acid stratification and/or improving uniformity in at least lead acid batteries, in particular batteries for electric rickshaws. In accordance with at least particular embodiments, the present disclosure or invention is directed to an improved separator for lead acid batteries wherein the separator includes improved membrane profiles, improved coatings, improved configurations, and/or the like.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: January 2, 2024
    Assignee: Daramic, LLC
    Inventors: Surendra Kumar Mittal, Naveen Prabhu Shanmugam
  • Patent number: 11705582
    Abstract: An exemplary hybrid battery separator is provided with a porous sheet with a folded bottom edge and joined lateral edges that form a pocket. The folded bottom edge may have one or more openings or slits. The hybrid separators of the present disclosure are particularly useful for flat-plate cycling batteries. The separators of the present disclosure may effectively enhance the battery re-chargeability and the backup time. In addition, the separators of the present disclosure may contribute to the reduction of water loss in the battery, lowering the maintenance needs in service. It is expected that batteries having the separators of the present disclosure may be useful in various applications, such as in inverters, golf carts, as well as solar and traction applications.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: July 18, 2023
    Assignee: Daramic, LLC
    Inventors: Surendra Kumar Mittal, Naveen Prabhu Shanmugam, J. Kevin Whear, Eric H. Miller
  • Publication number: 20220158305
    Abstract: New, improved or optimized battery separators, Z wrap separators, Z wrap serrated rib separators, Z wrap serrated rib separators for tubular batteries, components, cells, modules, systems, batteries, tubular batteries, industrial batteries, inverter batteries, batteries for heavy or light industrial applications, forklift batteries, float charged batteries, inverters, accumulators, methods, profiles, additives, compositions, composites, mixes, coatings, and/or related methods of Z wrapping separators, Z wrapping separators on electrodes of tubular batteries, water retention, water loss prevention, improved charge acceptance, production, use, and/or related Z wrapping equipment, and/or combinations thereof.
    Type: Application
    Filed: January 16, 2020
    Publication date: May 19, 2022
    Inventors: Baiju Parasuraman, Ahila Krishnamoorthy, Naveen Prabhu Shanmugam, Sankara Valli T. Nayagam, Marimuthu Elangovan, Santanu Chatterjee
  • Publication number: 20200295335
    Abstract: An exemplary hybrid battery separator is provided with a porous sheet with a folded bottom edge and joined lateral edges that form a pocket. The folded bottom edge may have one or more openings or slits. The hybrid separators of the present disclosure are particularly useful for flat-plate cycling batteries. The separators of the present disclosure may effectively enhance the battery re-chargeability and the backup time. In addition, the separators of the present disclosure may contribute to the reduction of water loss in the battery, lowering the maintenance needs in service. It is expected that batteries having the separators of the present disclosure may be useful in various applications, such as in inverters, golf carts, as well as solar and traction applications.
    Type: Application
    Filed: May 29, 2020
    Publication date: September 17, 2020
    Inventors: Surendra Kumar Mittal, Naveen Prabhu Shanmugam, J. Kevin Whear, Eric H. Miller
  • Patent number: 10693118
    Abstract: An exemplary hybrid battery separator is provided with a porous sheet with a folded bottom edge and joined lateral edges that form a pocket. The folded bottom edge may have one or more openings or slits. The hybrid separators of the present disclosure are particularly useful for flat-plate cycling batteries. The separators of the present disclosure may effectively enhance the battery re-chargeability and the backup time. In addition, the separators of the present disclosure may contribute to the reduction of water loss in the battery, lowering the maintenance needs in service. It is expected that batteries having the separators of the present disclosure may be useful in various applications, such as in inverters, golf carts, as well as solar and traction applications.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: June 23, 2020
    Assignee: Daramic, LLC
    Inventors: Surendra Kumar Mittal, Naveen Prabhu Shanmugam, J. Kevin Whear, Eric H. Miller
  • Publication number: 20170200984
    Abstract: Disclosed herein are novel or improved separators, battery separators, lead battery separators, batteries, cells, and/or methods of manufacture and/or use of such separators, battery separators, lead battery separators, cells, and/or batteries. In accordance with at least certain embodiments, the present disclosure or invention is directed to novel or improved battery separators for lead acid batteries. In addition, disclosed herein are methods, systems and battery separators for enhancing battery life, reducing active material shedding, reducing grid and spine corrosion, reducing failure rate reducing acid stratification and/or improving uniformity in at least lead acid batteries, in particular batteries for electric rickshaws. In accordance with at least particular embodiments, the present disclosure or invention is directed to an improved separator for lead acid batteries wherein the separator includes improved membrane profiles, improved coatings, improved configurations, and/or the like.
    Type: Application
    Filed: January 11, 2017
    Publication date: July 13, 2017
    Inventors: Surendra Kumar Mittal, Naveen Prabhu Shanmugam
  • Publication number: 20170047615
    Abstract: An exemplary hybrid battery separator is provided with a porous sheet with a folded bottom edge and joined lateral edges that form a pocket. The folded bottom edge may have one or more openings or slits. The hybrid separators of the present disclosure are particularly useful for flat-plate cycling batteries. The separators of the present disclosure may effectively enhance the battery re-chargeability and the backup time. In addition, the separators of the present disclosure may contribute to the reduction of water loss in the battery, lowering the maintenance needs in service. It is expected that batteries having the separators of the present disclosure may be useful in various applications, such as in inverters, golf carts, as well as solar and traction applications.
    Type: Application
    Filed: August 12, 2016
    Publication date: February 16, 2017
    Inventors: Surendra Kumar Mittal, Naveen Prabhu Shanmugam, J. Kevin Whear, Eric H. Miller