BESS Cloud/Wireless BMS Patent Snapshot 2026
The BESS Cloud and Wireless Battery Management System space is a nascent but rapidly accelerating field, with Honeywell International holding a commanding early lead across grid-connected power supply systems. Filing activity has grown sharply since 2022, and the competitive structure remains highly concentrated, signaling that first-mover advantages are still being established.
Honeywell leads a highly concentrated, early-stage field
Honeywell International Inc ranks first among all filers, holding 8 patent records — a visible position in a field where the top five applicants together account for 65% of the ranked applicants visible in this query’ combined total.
The concentration is unusually high for an emerging technology: a single commercial entity (China, its affiliated research institute, and FranklinWH Energy Storage, each holding two to three patent records. Below that tier, all remaining applicants hold a single record apiece, indicating that barriers to a leadership position remain low for new entrants.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | Honeywell International Inc | 8 | |
| 2 | FlexGen Power Systems LLC | 3 | |
| 3 | Wuhan Nari Co Ltd | 2 | |
| 4 | State Grid Corporation of China | 2 | |
| 5 | State Grid Electric Power Research Institute | 2 | |
| 6 | FranklinWH Energy Storage Inc | 2 | |
| 7 | Zhengzhou Zhongxi Energy Co Ltd | 1 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 8 | QPO Energy LLC | 1 | |
| 9 | Shanghai Bijie Technology Co Ltd | 1 | |
| 10 | University of Electronic Science and Technology of China Yangtze Delta Region Institute | 1 | |
| 11 | Ningxia Yunhua Smart Energy Co Ltd | 1 | |
| 12 | Jiangsu Yinnuode New Energy Technology Co Ltd | 1 | |
| 13 | V B Murali Krishna | 1 |
China’s State Grid entities, suggests that both industrial automation incumbents and national-grid operators see cloud-connected BMS as strategically important. The absence of major battery manufacturers (e.g., CATL, LG Energy Solution) from the top ranks leaves an open question about whether cell-level players will enter or license.
Records filed in the most recent 18–24 months are subject to publication lag and likely understate true activity; the apparent plateau in 2025–2026 data should not be read as a slowdown. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Annual filings accelerating; power-grid integration dominates the technology mix
Two lenses — the annual filing trend and the IPC branch composition — together show a field that emerged commercially around 2019, stalled briefly, then re-accelerated sharply from 2023 onward, with power-supply and grid-systems IP comprising the overwhelming bulk of activity.
Annual filing trend
Filings were negligible before 2019, produced a small initial cluster of three records that year, then went quiet before resuming strongly in 2023 (four records), 2024 (eight records), and 2025 (five records to date). The 333% recent growth figure reflects this re-acceleration. Because 2025 and 2026 data are affected by publication lag, the true volume for those years is almost certainly higher than the current count suggests.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H02J (Power supply and grid systems) is visible in with 18 patent records, reflecting the core use case of integrating battery storage into grid infrastructure via cloud or wireless interfaces. H01M (Batteries, cells and fuel cells) is the second branch with 8 records, covering the battery hardware layer. Measurement and sensing branches — G01R, G01D, G01K — are represented at low single-digit counts, and AI/computing (G06N) and wireless communications (H04W) each appear only once or twice, marking them as adjacent branches with limited current IP density.
↗ 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.
Battery Energy Storage System With Flexible Interc…
Provided is a battery energy storage system with remote monitoring, maintenance, and control. The battery energy storage system includes a residential battery energy storage unit having a battery module, a battery management system coupled to the battery module, a bi-directional power converter, and a communication controller configured to communicate with… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | 用于全钒液流电池储能的就地监控系统 | 24 |
| 2 | 一种大容量电池储能系统的故障检测装置及方法 | 4 |
| 3 | 一种用于锂电池储能的监测预警系统 | 3 |
| 4 | Monitoring battery packs within a battery energy s… | 3 |
| 5 | Energy controller in meter socket adapter connecte… | 2 |
| 6 | 一种多种类电池储能系统的优化配置系统 | 2 |
| 7 | Meter socket adapter, energy management system, an… | 1 |
| 8 | Method and system for the hierarchical scheduling … | 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 Inc
Honeywell holds 8 patent records, all concentrated in H02J power-supply and grid-systems subclasses (H02J 13 and H02J 3 each at 8 records, H02J 9 at 2 records), indicating a coherent strategy around grid-connected cloud BMS architectures. Its momentum is flagged as a new entrant, meaning all 8 records were filed in the recent window — a rapid, focused entry rather than a legacy position built over years.
patent records: 8FlexGen Power Systems LLC
FlexGen Power Systems holds 3 patent records and is also classified as a new entrant with recent filings. As a pure-play grid-scale BESS software and controls specialist, FlexGen’s IP focus aligns with its commercial positioning in cloud-based energy management for utility-scale storage. Its smaller record count relative to Honeywell reflects either a narrower filing strategy or a preference for trade-secret protection of software-layer innovations.
patent records: 3Frequently asked questions
The current corpus covers 21 patent families in scope. This is a small absolute count consistent with a nascent technology field that began accumulating meaningful filings only around 2019 and re-accelerated from 2023 onward.
Honeywell International Inc leads with 8 patent records, placing it well ahead of second-ranked FlexGen Power Systems LLC (3 records) and the cluster of State Grid-affiliated entities (2 records each). Honeywell’s filing concentration in H02J grid-systems subclasses indicates a deliberate strategy around cloud-connected grid storage management.
The United States leads with 8 patent records, followed closely by China with 7. Australia holds 4 records — a disproportionately high share that likely reflects active utility-scale BESS deployment in that market. Europe (EPO) and India each hold 2 records, suggesting relatively sparse coverage in those jurisdictions at present.
The field is in the Growth stage. Annual filings are still rising, and the 333% recent growth rate confirms genuine acceleration. The most recent 18–24 months of data are affected by publication lag, so current counts for 2025 and 2026 understate true activity levels.
H02J (Power supply and grid systems) is visible in with 18 patent records, followed by H01M (Batteries, cells and fuel cells) at 8. The least-covered branches with direct technical relevance include H04W (Wireless communication networks) at 1 record and G06N (AI/ML models) at 2 records, both representing potentially under-served areas relative to their importance to cloud-connected BMS architectures.
No co-applicant relationships have been detected in the current dataset. The absence of co-filings is consistent with an early-stage field where players are independently staking IP positions. University-industry or cross-border research partnerships have not yet been reflected in joint patent filings.
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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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