Grid-Scale Battery Storage Demand Response Patent Landscape
The grid-scale battery storage demand response patent field is in a growth stage, with activity up 121% over the recent multi-year window and Honeywell International leading a moderately concentrated field. The dominant technology route is grid power supply and management (H02J), with the United States as the primary filing jurisdiction.
Honeywell leads a moderately concentrated but still-open field
Honeywell International holds the top position with 28 patent families, nearly 65% more than second-ranked ABB (Schweiz) AG at 17 patent families, establishing a clear lead-tier separation.
The top five filers collectively account for 29% of the combined output of the hundred largest filers — a moderate concentration level that indicates no single incumbent has locked up the space, and meaningful room remains for challengers and specialists.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | Honeywell International Inc | 28 | |
| 2 | ABB (Schweiz) AG | 17 | |
| 3 | Open Energi Ltd | 10 | |
| 4 | Rosendin Electric Inc | 8 | |
| 5 | Regents of the University of California | 8 | |
| 6 | LG Energy Solution Ltd | 7 | |
| 7 | State Grid Corporation of China | 6 | |
| 8 | GE Grid Solutions LLC | 6 | |
| 9 | LSIS Co Ltd | 5 | |
| 10 | GE Energy Power Conversion Technology Ltd (GB) | 5 |
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 11 | FranklinWH Energy Storage Inc | 5 | |
| 12 | Hitachi Power Solutions Co Ltd | 4 | |
| 13 | King Fahd University of Petroleum and Minerals | 4 | |
| 14 | Veloce Energy Inc | 4 | |
| 15 | Hitachi Energy Ltd | 4 | |
| 16 | Shanghai Makesens Energy Storage Technology Co Ltd | 3 | |
| 17 | FlexGen Power Systems LLC | 3 | |
| 18 | Ampere Power Energy SL | 3 | |
| 19 | Intertie Inc | 3 | |
| 20 | Octave | 3 |
The lead positions of Honeywell and ABB, both broad-portfolio industrial technology companies, suggest that integration of battery storage controls into existing grid-management infrastructure is currently the dominant commercialization pathway rather than pure-play storage innovation.
The most recent 18–24 months of filings are subject to publication lag and will appear under-counted; trend and share figures should be interpreted accordingly. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Filing activity has accelerated since 2022 and the technology mix is heavily grid-centric
The annual filing trend reveals a step-change in activity starting in 2022, while the technology composition chart shows H02J (power supply and grid systems) as the overwhelmingly dominant branch, with several adjacent classes at much lower levels.
Annual filing trend
Filings were modest from 2017 through 2021 (7–18 families per year), then jumped sharply in 2022 (39 families) and again in 2024 (44 families). The 2025 and 2026 figures appear lower due to publication lag and should not be read as a reversal; the lifecycle evidence confirms the field remains in a growth stage.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H02J (power supply and grid systems) is by far the largest branch at 238 records, reflecting the field’s core focus on grid integration and dispatch control. The next tiers — G06Q (business and admin data processing) at 44, B60L (electric vehicle propulsion) and H01M (batteries and fuel cells) both at 29, and G06N (AI models) at 24 — are substantially smaller, signaling that vehicle-grid integration, electrochemistry, and AI-driven optimization remain under-represented relative to the grid-systems core.
↗ 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.
Prosumers multiservice operation management system…
The present invention refers to a system for managing distributed energy storage systems like a Virtual Power Plant (VPP). The system is adapted to process grid services requests from grid operators and/or market agents, and to dynamically set clusters of energy storage devices based on properties of the energy storage devices, and selecting those energy… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Devices, systems, and related methods for power co… | 118 |
| 2 | Building and Building Cluster Energy Management an… | 83 |
| 3 | Battery energy storage control systems and methods | 64 |
| 4 | 考虑储能和负荷管理技术的主动配电网多目标规划方法 | 56 |
| 5 | Hierarchical control method for island power grid … | 54 |
| 6 | 光储荷智能化管理一体机及光储荷智能化管理方法 | 50 |
| 7 | Building energy management and optimization | 38 |
| 8 | 船舶风光储波浪能综合利用发电装置 | 38 |
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.
What the patent structure means for R&D investment decisions
The combination of a growth lifecycle, moderate concentration, and a technology mix still tilted heavily toward grid systems points to a field where early-mover advantages are forming but entry windows remain open, especially in adjacent technical branches.
Growth stage with annual filings still rising
The lifecycle evidence classifies this field as Growth, with a 121% increase over the recent multi-year window and annual volume continuing to rise — 2024 was the peak year at 44 families. The 2026 apparent dip reflects publication lag, not a market signal. For R&D planners, this means foundational claim positions are still being established and filing now can secure strategically relevant coverage.
Growth stageModerate top-tier concentration with open mid-field
The top five filers hold 29% of the combined output of the hundred largest filers, with Honeywell at 28 patent families and ABB at 17 forming a lead tier. Below them, Open Energi (10), Rosendin Electric (8), and the Regents of the University of California (8) constitute a thin second tier. The broad mid-field — including LG Energy Solution, State Grid Corporation of China, and GE Grid Solutions each at 5–7 patent families — remains competitively open.
Moderate concentrationState Grid Corporation anchors the most active co-filing network
State Grid Corporation of China is by far the most active co-filer in the collaboration evidence, with joint filings alongside Wuhan University, State Grid Liaoning, State Grid Power Science Research Institute (Wuhan Energy Efficiency Assessment), State Grid Power Science Research Institute, State Grid Gansu Power Research Institute, State Grid Gansu, State Grid Hunan, and State Grid Hubei Economic and Technical Research Institute — nine documented co-filing relationships. General Electric and GE Grid Solutions also appear as a pair with two joint filings. This hub-and-spoke structure around State Grid Corporation suggests Chinese grid operators are coordinating IP strategy across provincial and research subsidiaries.
CollaborationUS-dominant filing with China and India as significant second-tier jurisdictions
The United States leads with 79 patent records filed, followed by China at 40 and India at 32 — the Indian presence being notably high relative to most adjacent energy-tech fields. Europe (EPO) at 30 and WIPO (PCT) at 28 suggest meaningful international protection strategies. Australia at 10 and Japan at 7 round out the primary markets. The India filing volume warrants attention as a signal of local R&D investment or market-targeted protection.
US-led, India emergingGo beyond the landscape: Eureka’s TRIZ Solution agent breaks down an R&D problem and returns patented concept solutions, each with a technical approach and cited patent & literature evidence.
| Applicant | Collaborator | Co-filings |
|---|---|---|
| General Electric Co | GE Grid Solutions LLC | 2 |
| State Grid Corporation of China | Wuhan University | 1 |
| State Grid Corporation of China | State Grid Liaoning Electric Power Co Ltd | 1 |
| State Grid Corporation of China | State Grid Power Science Research Institute Wuhan Energy Efficiency Assessment Co Ltd | 1 |
| State Grid Corporation of China | State Grid Electric Power Research Institute Co Ltd | 1 |
| State Grid Corporation of China | State Grid Gansu Electric Power Company Power Science Research Institute | 1 |
| State Grid Corporation of China | State Grid Gansu Electric Power Company | 1 |
| State Grid Corporation of China | State Grid Hunan Electric Power Co Ltd | 1 |
| State Grid Corporation of China | State Grid Hubei Electric Power Co Ltd Economic and Technical Research Institute | 1 |
| State Grid Corporation of China | State Grid Hubei Electric Power Co Ltd Xiaogan Power Supply Company | 1 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
Honeywell and ABB lead on grid-systems integration; both are new entrants in the recent window
The top two applicants are both broad industrial technology companies whose filings concentrate almost exclusively within H02J (power supply and grid systems), indicating that grid integration controls — rather than battery chemistry — define their strategic positioning in this space.
Honeywell International Inc
Honeywell leads with 28 patent families and a momentum trend classified as a new entrant in the recent period, with 22 families filed in the recent window — the largest recent-period volume of any applicant in the corpus. Their technology focus concentrates on H02J 3 (grid-connected power systems, 20 records), H02J 7 (battery charging and management, 14 records), and H02J 13 (remote monitoring and control of distribution networks, 12 records), reflecting a strategy of broad grid-integration controls coverage.
28 patent familiesABB (Schweiz) AG
ABB holds 17 patent families and is also classified as a new entrant in the recent filing window, with 7 families in the recent period. Their technology emphasis mirrors Honeywell’s — H02J 3 (11 records), H02J 7 (6 records), and H02J 13 (3 records) — but at lower absolute volume. ABB’s narrower but similarly structured portfolio suggests a parallel strategic intent to secure grid-interconnection IP as the demand-response market scales.
17 patent families| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| Honeywell International Inc | 22 | ▲ new entrant |
| ABB (Schweiz) AG | 7 | ▲ new entrant |
| Rosendin Electric Inc | 7 | ▲ new entrant |
| LG Energy Solution Ltd | 5 | ▲ new entrant |
| Hitachi Ltd | 6 | ▲ new entrant |
| State Grid Corporation of China | 2 | ▲ new entrant |
Under-served adjacent branches worth monitoring
Several IPC classes appear in the corpus at low share relative to the dominant H02J branch; two stand out as having plausible technical value and realistic entry paths for teams with the right competencies.
G06N · AI and machine learning models
G06N (computing based on AI models) accounts for 24 records — only 5% of the corpus by branch count — despite the evident relevance of machine-learning-driven dispatch optimization and demand forecasting to grid-scale storage. The low coverage relative to the core H02J branch suggests that AI-native approaches to demand response scheduling remain sparsely protected. Teams with expertise in reinforcement learning or predictive control applied to energy systems could find relatively uncontested claim space here, with a realistic entry path through algorithmic dispatch and state-of-charge optimization methods.
Search this in Eureka →H01M · Batteries, cells and fuel cell systems
H01M (batteries, cells, and fuel cells) appears at 29 records — 7% of the corpus — indicating that electrochemistry-level innovation (cell architecture, degradation management, thermal control at the cell level) is not yet a major focus among demand-response filers. For teams working on battery management systems that bridge cell-level state estimation with grid dispatch signals, this represents an under-served adjacent branch. The entry path is most realistic for battery manufacturers or BMS specialists looking to extend into grid-interactive control claims.
Search this in Eureka →How leading applicants differ by technology route
Route coverage across the main technology branches in the current evidence set.
| Player | H02J 3 · Power supply & grid systems | H02J 7 · Power supply & grid systems | G06Q 50 · Business, commerce & admin data processing | H02J 13 · Power supply & grid systems | H01M 10 · Batteries, cells & fuel cells |
|---|---|---|---|---|---|
| Honeywell International Inc | Strong · 20 | Strong · 14 | Emerging · 3 | Strong · 12 | Emerging · 3 |
| ABB (Schweiz) AG | Strong · 11 | Strong · 6 | Absent | Moderate · 3 | Emerging · 2 |
| Hitachi Ltd | Strong · 6 | Strong · 5 | Absent | Moderate · 3 | Moderate · 3 |
| Open Energi Ltd | Strong · 8 | Moderate · 4 | Absent | Absent | Moderate · 2 |
| Rosendin Electric Inc | Strong · 5 | Strong · 8 | Absent | Absent | Absent |
| Regents of the University of California | Strong · 4 | Absent | Absent | Moderate · 2 | Moderate · 2 |
| General Electric Co | Strong · 7 | Absent | Absent | Absent | Absent |
Frequently asked questions
The corpus covers 220 patent families in scope. The United States is the leading filing jurisdiction by patent record count.
Honeywell International Inc leads with 28 patent families, followed by ABB (Schweiz) AG at 17 and Open Energi Ltd at 10. Honeywell also shows the strongest recent filing momentum, with 22 families filed in the recent window.
H02J (power supply and grid systems) is the overwhelmingly dominant IPC branch at 238 patent records. The next largest branches — G06Q at 44, B60L and H01M each at 29, and G06N at 24 — are substantially smaller.
The evidence classifies the field as Growth, with annual filings up 121% over the recent multi-year window and 2024 as the peak year at 44 families. The apparent drop in 2025–2026 data reflects publication lag, not a real decline.
The United States leads at 79 patent records, followed by China at 40, India at 32, Europe (EPO) at 30, and WIPO (PCT) at 28. India’s volume is notably high relative to comparable energy-technology fields.
State Grid Corporation of China is the most active co-filer, with nine documented co-filing relationships spanning Wuhan University, multiple provincial grid subsidiaries, and research institutes. General Electric and GE Grid Solutions appear as a two-family co-filing pair. The State Grid ecosystem suggests coordinated IP strategy across China’s national grid research network.
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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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