Overall rank by patents
#39,962
Across all tracked assignees
USPTO PatentsView assignee record - 6 granted patents across 4 technology areas, active 2016–2022. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: H01M (PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY).
The verdict
Electrovaya holds 6 US patents across 4 technology areas, rank #39,962 of 50,000 tracked assignees.
Electrovaya Inc. has been granted 6 US utility patents between 2016 and 2022, placing Electrovaya Inc. at rank #39,962 across all assignees tracked by PlainPatent. This portfolio spans 4 distinct Cooperative Patent Classification (CPC) subclasses, averaging 18.0 claims per patent with primary concentration in H01M (PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY). As a Foreign Corporation, Electrovaya Inc. is one of the more focused assignees in the PatentsView dataset. By volume, Electrovaya sits between Elasmogen Ltd (6 patents, rank #39,958) and Elkem Silicones Shanghai Co., Ltd. (6 patents, rank #39,966) - the closest US assignees by grant volume. The composite Innovation Score of 31.3/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.
Filing cadence tells the strategic story. Between 2020 and 2025 the company received 2 grants, compared with 4 in the 2015–2019 window, a -50% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.
Claim depth and technology breadth together indicate competitive posture. Electrovaya Inc.'s 18.0 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while specialization in 4 subclasses reflects a tightly scoped invention area. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Electrovaya Inc. against peers pursuing similar technology classes.
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
ELASMOGEN LTD
6 patents
ELEC-TECH INTERNATIONAL CO., LTD.
6 patents
ELECTRICFIL AUTOMOTIVE
6 patents
ELECTRO-GLOBAL ENERGY SOLUTIONS LTD.
6 patents
ELFI-TECH LTD.
6 patents
ELIFECONNECTION CO., LTD.
6 patents
ELK CORPORATION
6 patents
ELKEM SILICONES SHANGHAI CO., LTD.
6 patents
ELECTROVAYA INC.
6 patents
What this shows Electrovaya holds 6 patents at rank #39,962, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
By rank, the assignees closest to #39,962 in granted patent volume.
Other assignees with the most granted patents in Electrovaya's primary technology class.
Electrovaya's Innovation Score vs. every tracked assignee
Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)
31 Top 63% higher than 37% of 50,000 US assignees
Each bar is a band; taller bars hold more US assignees. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source USPTO PatentsView, PlainPatent Innovation Score · 2015–2025
Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2016 | 1 | 16.7% |
| 2017 | 1 | 16.7% |
| 2018 | 2 | 33.3% |
| 2020 | 1 | 16.7% |
| 2022 | 1 | 16.7% |
Top 4 of 4 technology areas
Overall rank by patents
#39,962
Across all tracked assignees
31.3 out of 100
How to use this portfolio
Electrovaya's 6 grants land it in the top 63% by Innovation Score, but volume alone doesn't tell you where the strength sits.
Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.
Every figure on PlainPatent is rendered directly from USPTO source data, no number is typed in by an editor. This page draws directly on USPTO source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.