BESS Cell Screening & Grading Patent Snapshot 2026
The patent space for BESS cell screening and grading is nascent, with only 2 patent families on record and a single applicant — Honeywell International — holding all activity. This extreme concentration signals an open field where almost any new entrant would immediately become a significant presence.
One applicant holds the entire defined space
Honeywell International is the sole ranked applicant, holding both patent families in scope. Among the ranked applicants visible in this query, Honeywell accounts for the full share of combined activity, placing it in a class of its own with no second-tier challenger yet visible.
There is no discernible tier gap in the traditional sense because no other applicant appears in the ranking. The field is effectively uncontested at the patent level, which is unusual even for an emerging technology niche.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | Honeywell International Inc. | 2 |
Honeywell’s position implies first-mover status in a space that most battery-system developers have not yet formally claimed. Its filings span both electrical measurement and battery-cell technology classes, reflecting a cross-disciplinary approach to the screening problem.
The most recent filings are subject to publication lag; the true state of pending activity may be higher than the current record count suggests. The scope here is limited to the specific intersection of cell screening and grading within battery energy storage systems.
Activity emerged only in 2024 across two technical branches
The annual filing trend and technology composition together reveal an exceptionally early-stage field: no filings appear before 2024, and the two active IPC classes reflect the dual nature of the problem — measurement science and battery electrochemistry.
Annual filing trend
Zero activity is recorded from 2017 through 2023; filings appear for the first time in 2024 and again in 2025, each year contributing one family. The 2026 count reads zero, consistent with normal publication lag for very recent filings — no inference about 2026 activity can yet be drawn.
↗ Hover for values · click a bar to ask EurekaTechnology composition
Both patent families are classified under G01R (electric and magnetic measurement) and H01M (batteries, cells, and fuel cells), with equal weight across the two branches. This dual classification confirms that the core technical challenge bridges cell-level characterisation and battery-system engineering.
↗ Hover for values · click a bar to ask EurekaHighly cited patent families surfaced by the query
Citation-heavy patent families returned by the query. Use this section as citation context, not as a curated list of the most topic-specific patents.
System and method for detecting and classifying ab…
A system and method for detecting and classifying outlier battery cells operating abnormally in a storage battery of a battery energy storage system (BESS). A controller controls the operation of the BESS, and a battery management system (BMS) collects battery operational data from the storage battery and stores the battery data in a data repository. A… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | System and method for detecting and classifying ab… | 1 |
Ranked by total forward citations. Citation counts favour older and broadly cited patent families, and broad or adjacent patents may appear when they match the search scope. Treat this section as citation context, not as a curated list of the most topic-specific patents. Some patent titles may be shown in their original, non-English language where an accurate translation could not be guaranteed.
Assignee snapshot from the current evidence set
The applicants below are visible in this query result. Because the evidence set is relatively small, read this section as a directional snapshot rather than a full competitive ranking.
Honeywell International
Honeywell holds all 2 patent families in scope, with filings under both G01R 31 (electrical measurement) and H01M 10 (batteries and fuel cells). Its momentum is classified as a new entrant, consistent with activity beginning only in 2024. The EPO and US filings signal a dual-market IP strategy from the outset.
families: 2No challenger identified
No second applicant appears in the current corpus. This slot will be meaningful once additional organisations file in the BESS cell screening and grading space. Engineers monitoring this area should watch for new entrants in both the G01R and H01M classification branches.
families: 0Frequently asked questions
The current corpus contains 2 patent families. This is an exceptionally small count that reflects the field’s very recent emergence, with the first filings appearing only in 2024.
Honeywell International is the sole applicant on record, holding both patent families. No other organisation appears in the ranking at this time.
The two families are filed in Europe (EPO) and the United States, one each. No Asia-Pacific jurisdictions are currently represented in the corpus.
Both families are classified under G01R (electric and magnetic measurement) and H01M (batteries, cells, and fuel cells), reflecting the cross-disciplinary nature of cell screening — combining measurement science with battery electrochemistry.
No. Patent applications typically take 12 to 18 months to publish after filing, so 2025 and especially 2026 data are under-counted due to publication lag. The zero for 2026 should not be interpreted as a real decline in activity.
Given only 2 patent families on record and a single filer, any organisation that files even one patent family in a related IPC branch would immediately register as a co-leader by count. The freedom-to-operate constraints from existing patents are currently minimal, making this an unusually accessible entry point for new R&D programmes.
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Disclaimer. This page is generated from Patsnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.
Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
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