Digital Building Twin Patent Landscape 2026
Digital Building Twin Patent Landscape in 2026
The digital building twin patent field is at a maturity inflection, with annual filings having eased from their 2021 peak while the corpus totals 888 patent families across building structures, HVAC controls, and digital data processing. Mitsubishi Electric leads by volume, though a mix of industrial incumbents and construction-sector new entrants signals that competitive boundaries are still being drawn.
Mitsubishi Electric leads a moderately concentrated field with active challengers from Siemens and Honeywell
Mitsubishi Electric Corporation holds the top position with 61 patent families, followed by Panasonic Intellectual Property Management with 36, and a tight cluster of Siemens entities — Siemens Schweiz AG (29), Siemens Industry Inc (26), and Siemens Corp (26) — that collectively rival the leader when aggregated.
The top five individual filers account for 26% of the combined output of the hundred largest filers, indicating moderate concentration: no single player dominates, and the gap between the first and fifth rank is not insurmountable for a well-resourced challenger.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | Mitsubishi Electric Corporation | 61 | |
| 2 | Panasonic Intellectual Property Management Co., Ltd. | 36 | |
| 3 | Siemens Schweiz AG | 29 | |
| 4 | Honeywell International Inc. | 27 | |
| 5 | Siemens Industry Inc. | 26 | |
| 6 | Siemens Corp | 26 | |
| 7 | China MCC17 Group Co., Ltd. | 24 | |
| 8 | Anchor Ring Solutions LLC | 20 | |
| 9 | JLG Industries Inc. | 17 | |
| 10 | Johnson Controls Technology Company | 17 |
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 11 | Melrok LLC | 16 | |
| 12 | China MCC5 Group Corp., Ltd. | 16 | |
| 13 | Ohbayashi Corporation | 14 | |
| 14 | NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER | 12 | |
| 15 | Daikin Industries, Ltd. | 12 | |
| 16 | China Construction Eighth Engineering Division Corp., Ltd. | 11 | |
| 17 | View Operating Corp | 11 | |
| 18 | View Inc. | 11 | |
| 19 | Shaoxing Daneng Steel Structure Detail Design Co., Ltd. | 10 | |
| 20 | CohesionIB Inc. | 10 |
The leaders’ positions reflect distinct strategic angles — Mitsubishi and Panasonic anchoring in HVAC-linked building intelligence, Siemens entities covering controls and wireless building management, and Honeywell entering as a recent mover — which means competitive advantage is technology-route-specific rather than broadly entrenched.
The most recent 18–24 months of filings are subject to publication lag and will be revised upward as pending applications publish; trend readings for 2024–2026 should be treated as provisional. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Filing volume peaked in 2021 and has since plateaued; building structures and HVAC dominate the technology mix
The annual filing trend and IPC technology composition together reveal a field that surged rapidly through 2021 before settling into a plateau, with the structural and HVAC domains absorbing the majority of activity while digital-intelligence branches remain comparatively thin.
Annual filing trend
Filings climbed steeply from 41 in 2017 to a peak of 162 in 2021, then stepped down to 124 in 2022, 121 in 2023, and 103 in 2024. The 2025 and 2026 figures (65 and 13 respectively) reflect publication lag and should not be read as a continuing decline. The field is best characterised as post-peak plateau rather than active growth.
↗ Hover for values · click a bar to ask EurekaTechnology composition
E04B (building structures and elements) is the dominant branch, reflecting the physical-asset digitisation core of the topic. F24F (air conditioning and ventilation), G06F (electric digital data processing), and G05B (control and regulating systems) form the next tier, confirming that HVAC control and software-layer patents are the primary expression of ‘twin’ intelligence. Branches such as G16Y (IoT data processing) and G06N (AI models) carry notably smaller counts, indicating that AI-native and IoT-native framing of building twin concepts remains less fully developed in the patent record.
↗ 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.
Generating an operational user interface for a bui…
Devices, methods, and systems for generating an operational user interface for a building management system are described herein. One method includes generating a widget using geometrical information associated with a building information modeling object and relationship information associated with the building information modeling object, assigning a state… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Three-dimensional building management system visua… | 398 |
| 2 | Building management system analysis | 191 |
| 3 | Generating an operational user interface for a bui… | 188 |
| 4 | System for modular building construction | 155 |
| 5 | Method and device for controlling power supply to … | 75 |
| 6 | Wireless building management system and method usi… | 64 |
| 7 | 一种球类幕墙的快速放线、定位及下料方法 | 63 |
| 8 | Composite Building Components Building System | 62 |
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 competitive structure means for R&D positioning and investment
Four structural observations — maturity stage, concentration dynamics, collaboration patterns, and geographic distribution — translate directly into R&D investment signals for teams evaluating entry or expansion in digital building twin.
Post-peak plateau: the field has matured from its 2021 surge
Annual filing volume peaked at 162 in 2021 and has eased to the low hundreds in subsequent years, consistent with a maturing technology segment rather than an emergent one. Teams entering now face an established prior-art landscape requiring higher differentiation; incremental improvement claims are at greater risk of rejection or challenge. Investment value shifts toward integration, application-specificity, and adjacency moves rather than foundational claims.
Lifecycle: MaturityModerate concentration with a multi-entity Siemens cluster as the effective second force
The top five individual filers hold 26% of the hundred largest filers’ combined output — meaningful concentration but not lock-in. Siemens files across at least three separate legal entities (Siemens Schweiz AG, Siemens Industry Inc, Siemens Corp), and their aggregated footprint rivals Mitsubishi Electric’s lead. New entrants such as China MCC17 Group and Honeywell International are building positions rapidly, indicating the ranking is still fluid in the mid-tier.
Moderate concentrationCo-filing is rare and confined to intra-group pairs
The only substantive co-filing relationships in evidence are Siemens Industry Inc with Siemens Corp (22 joint families) and Mitsubishi Electric Corporation with Mitsubishi Electric Building Solutions Corp (2 joint families). Both are intra-corporate arrangements rather than cross-industry alliances, suggesting that external collaboration — with construction firms, cloud providers, or sensor manufacturers — has not yet translated into significant joint patent activity. This represents a structural gap relative to adjacent fields like smart city or industrial IoT.
Intra-group onlyChina is the primary filing jurisdiction, with the US and Japan as secondary markets
China accounts for the largest share of jurisdiction-level filings, followed by the United States and Japan, with Europe (EPO) and WIPO (PCT) providing international coverage. Germany, India, and Canada represent smaller but established secondary markets. The geographic skew toward China reflects both domestic applicant activity and the volume of construction-sector filings from Chinese contractors. Teams seeking broad commercial protection should prioritise US and EPO prosecution; teams monitoring competitive moves must track Chinese publications actively.
China-led, US/JP secondaryGo 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 |
|---|---|---|
| Siemens Industry Inc. | Siemens Corp | 22 |
| Mitsubishi Electric Corporation | Mitsubishi Electric Building Solutions Corporation | 2 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
Mitsubishi Electric anchors in HVAC intelligence; Panasonic is accelerating while Siemens entities dominate building controls
The leader and primary challenger differ sharply in momentum and technology focus, creating distinct competitive profiles that matter for freedom-to-operate and partnership targeting.
Mitsubishi Electric Corporation
With 61 patent families, Mitsubishi Electric is the field’s top filer, concentrated almost entirely in F24F air conditioning and ventilation — specifically F24F 11 (61 sub-family occurrences), establishing a deep HVAC-centric building twin position. Recent momentum shows a significant pullback (▼ –70% in the recent window), suggesting the company may be consolidating its portfolio rather than expanding the frontier. Competitive exposure is highest in HVAC-linked building management; its controls and digital-layer coverage is thinner relative to Siemens.
families: 61Panasonic Intellectual Property Management Co., Ltd.
Panasonic holds 36 patent families and is the field’s clearest momentum story, with recent filings up ▲ +58% versus the prior period. Its technology focus mirrors Mitsubishi Electric in F24F ventilation but adds a meaningful G06F (digital data processing) strand, suggesting a broader software-plus-HVAC twin strategy. This combination of volume growth and technology breadth makes Panasonic the most active challenger to watch for teams assessing competitive dynamics in building intelligence.
families: 36| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| Mitsubishi Electric Corporation | 13 | ▼ -70% |
| Panasonic Intellectual Property Management Co., Ltd. | 19 | ▲ +58% |
| Siemens Schweiz AG | 1 | ▼ -90% |
| Honeywell International Inc. | 1 | ▲ new entrant |
| China MCC17 Group Co., Ltd. | 16 | ▲ new entrant |
| Canvas Construction Inc. | 5 | ▲ new entrant |
| Anchor Ring Solutions LLC | 10 | ▬ 0% |
| View Operating Corp | 4 | ▼ -75% |
Under-served adjacent branches in controls, business processes, and specialised building types
Several IPC branches sit adjacent to the core digital building twin activity with meaningful filing counts but relatively low share, pointing to areas where differentiated contributions may face less crowded prior art.
G05B · Control & Regulating Systems — building-twin feedback loops
G05B carries 196 patent-level records but represents only 8% share within the corpus — substantial in absolute terms yet undersized relative to the structural and HVAC core. The technical value is clear: closed-loop control tied to a digital twin enables predictive maintenance, adaptive energy management, and real-time fault isolation. Entry paths include model-predictive control algorithms, digital-twin-driven setpoint optimisation, and integration with BMS platforms. Siemens and Honeywell currently anchor this branch; gaps appear in AI-augmented control and edge-deployed twin inference.
Search this in Eureka →G06Q · Business & Administrative Data Processing — operational and commercial twin layers
G06Q accounts for 130 patent-level records at 5% share, an observation of relative sparsity given the clear commercial relevance of business-process integration with building twins — lease management, asset lifecycle costing, sustainability reporting, and occupancy analytics. Siemens Schweiz AG and Anchor Ring Solutions show presence here, but the branch lacks depth from property technology or enterprise software players. Teams with SaaS or digital operations backgrounds may find the prior-art bar lower in this branch than in the physical-engineering core.
Search this in Eureka →How leading assignees differ by technology route across building structures, HVAC, controls, and digital processing
Strength of each leader across the main technology routes.
| Player | E04B 1 · Building structures & elements | F24F 11 · Air conditioning & ventilation | E04B 2 · Building structures & elements | G06F 30 · Electric digital data processing | G05B 15 · Control & regulating systems |
|---|---|---|---|---|---|
| Mitsubishi Electric Corporation | Absent | Strong · 61 | Absent | Absent | Absent |
| China MCC17 Group Co., Ltd. | Strong · 17 | Absent | Strong · 10 | Strong · 10 | Absent |
| Panasonic Intellectual Property Management Co., Ltd. | Absent | Strong · 28 | Absent | Moderate · 9 | Absent |
| Siemens Schweiz AG | Absent | Emerging · 5 | Absent | Absent | Strong · 26 |
| Honeywell International Inc. | Absent | Absent | Absent | Absent | Strong · 25 |
| Siemens Corp | Absent | Strong · 22 | Absent | Absent | Absent |
| Siemens Industry Inc. | Absent | Strong · 22 | Absent | Absent | Absent |
Frequently asked questions
The corpus covers 888 patent families in scope across the digital building twin technology area, with filings spanning from at least 2017 through 2026 in the evidence set.
Mitsubishi Electric Corporation leads with 61 patent families, followed by Panasonic Intellectual Property Management Co., Ltd. with 36 and Siemens Schweiz AG with 29.
No. Annual filings peaked at 162 in 2021 and have eased to the low hundreds since, placing the field in a maturity plateau rather than a growth phase. The 2025–2026 figures are subject to publication lag and will revise upward, but the overall trend has clearly shifted from rapid expansion.
China is the leading jurisdiction by patent-level filing count, followed by the United States and Japan. Europe (EPO) and WIPO (PCT) provide meaningful international coverage, with Germany, India, and Canada as smaller secondary markets.
E04B (building structures and elements) is the largest branch, followed by F24F (air conditioning and ventilation), G06F (electric digital data processing), and G05B (control and regulating systems). AI-native branches such as G06N and IoT-specific G16Y carry notably smaller counts.
Co-filing activity is limited and concentrated within corporate groups: Siemens Industry Inc and Siemens Corp jointly filed 22 families, and Mitsubishi Electric Corporation co-filed with Mitsubishi Electric Building Solutions Corp on 2 families. No significant cross-industry or cross-sector co-filing alliances are evident in the current evidence.
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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.
Nothing on this page constitutes an exhaustive prior-art, novelty, freedom-to-operate, or validity search, nor does it constitute legal, financial, investment, or professional advice, and it should not be relied upon as such. Any patent, commercial, or strategic decision should be verified independently and reviewed with qualified patent, legal, and domain professionals. PatSnap makes no warranties, express or implied, as to the accuracy, completeness, or fitness for any particular purpose of the information presented.