Surendra Kumar Mittal has been granted 8 US patents while listed as an inventor at Daramic . The first was granted in 2004 and the most recent in June 2025. Surendra Kumar Mittal ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Surendra Kumar Mittal in Kanchinakote, IN.
Patents per Year Patents granted per year, 2004 to 2025 Bar chart with a peak of 2 patents in 2005. peak 2 2004: 1 patents 2004 2005: 2 patents 2005 2020: 1 patents 2020 2023: 1 patents 2023 2024: 2 patents 2024 2025: 1 patents 2025
Issued Patents All Time
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Showing 1–8 of 8 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
12334587 Separators, lead acid batteries, and methods and systems associated therewith Mohammed Naiha 2025-06-17
11942656 Battery separators, batteries and related methods Jeffrey K. Chambers , Jörg Deiters 2024-03-26
11862769 Battery separators for E-rickshaw and similar vehicle lead acid batteries Naveen Prabhu Shanmugam 2024-01-02
11705582 Separators for flat plate batteries, improved batteries, and related methods Naveen Prabhu Shanmugam , J. Kevin Whear , Eric H. Miller 2023-07-18
10693118 Separators for flat plate batteries, improved batteries, and related methods Naveen Prabhu Shanmugam , J. Kevin Whear , Eric H. Miller 2020-06-23
6890681 Leak resistant automotive battery Debashish Mazumdar , Partha Dasgupta 2005-05-10
$99,000
6881513 Leak retardant automotive battery Partha Dasgupta , Subhradas Bandyapadhyayay , Debashish Mazumdar 2005-04-19
$104,000
6686720 Vented-type leak resistant motor cycle battery Debashish Mazumdar , Partha Dasgupta 2004-02-03