Elevator Control System Patent Landscape 2026
Elevator Control System Patent Landscape in 2026
Otis Elevator Co dominates a highly concentrated field, holding the largest share among the top filers, with Inventio AG and Hitachi Ltd as the nearest challengers. Annual filing volume peaked in 2020 and has since eased, placing the field in a decline phase, though adjacent branches in digital data processing and wireless networking remain comparatively sparse.
Otis leads a concentrated field with a clear tier gap
Otis Elevator Co ranks first with 21 patent records, followed by Inventio AG at 12 and Hitachi Ltd at 7. The top five filers together account for 47% of the combined output of the hundred largest filers, signaling a concentrated competitive structure.
A clear tier gap separates the top three — Otis, Inventio AG, and Hitachi Ltd — from the mid-tier, where Carrier Corp and independent inventor Thomas David Aiken each hold smaller positions. Below that, filers cluster at two patent records each.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | Otis Elevator Co | 21 | |
| 2 | Inventio AG | 12 | |
| 3 | Hitachi Ltd | 7 | |
| 4 | Carrier Corp | 5 | |
| 5 | AIKEN THOMAS DAVID | 4 | |
| 6 | Panasonic Holdings Corp | 3 | |
| 7 | Sangmyung University Seoul Industry-Academia Cooperation Foundation | 2 | |
| 8 | Guangdong Huakai Elevator | 2 | |
| 9 | Chandigarh University | 2 | |
| 10 | KIT MENG CHAN | 2 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 11 | Guangzhou Guangri Elevator Industry | 2 | |
| 12 | International Business Machines Corporation | 2 | |
| 13 | Fujitec Co Ltd | 2 | |
| 14 | MARK KIT JIUN CHAN | 2 | |
| 15 | West View Research LLC | 2 | |
| 16 | SUT FAN LUN | 2 | |
| 17 | Johnson Controls Technology Co | 2 | |
| 18 | CHAN | 2 | |
| 19 | Hewlett Packard Enterprise Development LP | 2 | |
| 20 | WILLIAMS MICHAEL EUGENE | 2 |
Otis and Inventio AG share a nearly identical technology emphasis on core lift mechanics (B66B) and control systems (G05B), suggesting direct head-to-head competition in the foundational IP space. Hitachi Ltd differentiates partly through safety and fault-monitoring subclasses.
Filing counts for 2024–2026 are likely under-represented due to standard patent publication lag; the recent dip should not be read as an accelerating withdrawal from the field. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Activity peaked in 2020; technology mix skews toward core control and digital adjacencies
The annual filing trend reveals a 2020 surge followed by easing volume, while the technology composition chart shows that core lift and control classes dominate but digital processing and wireless branches are gaining relative presence.
Annual filing trend
Filings rose to a peak of 10 patent records in 2020, then moderated. The 2024–2026 counts are incomplete due to publication lag and should not be interpreted as reflecting actual R&D withdrawal.
↗ Hover for values · click a bar to ask EurekaTechnology composition
B66B (Lifts & escalators) and G05B (Control & regulating systems) dominate the technology mix. F24F (Air conditioning & ventilation), G06F (Electric digital data processing), and H04W (Wireless communication networks) form a secondary tier, pointing to integration of building-systems and connectivity themes alongside core elevator mechanics.
↗ 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.
Safety arrangement of an elevator
The invention relates to a safety arrangement of an elevator and a method for implementing safety spaces in an elevator shaft. The elevator comprises an elevator control system, an elevator motor, a power supply circuit of the elevator motor, and at least one mechanical stopping appliance for preventing movement of the elevator car in the elevator shaft. In… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Human occupancy detection method and system for im… | 455 |
| 2 | Common object architecture supporting application-… | 453 |
| 3 | Language independent building automation architect… | 137 |
| 4 | Occupancy-based demand controlled ventilation system | 52 |
| 5 | Depth sensor based passenger sensing for passenger… | 48 |
| 6 | Human occupancy detection method and system for im… | 38 |
| 7 | Safety arrangement of an elevator | 36 |
| 8 | Intelligent video for building management and auto… | 36 |
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 peaked lifecycle, high concentration among established OEMs, and sparse coverage in digital and wireless adjacencies shapes where new entrants and challengers can realistically differentiate.
Field in decline phase from a 2020 peak
The lifecycle stage is Decline: annual filings have eased back from the 2020 peak of 10 patent records. Foundational lift-control IP is well established among the top three filers, making it harder to carve out broad new claims in core subclasses. R&D investment is better directed toward adjacent integration areas rather than the already-dense B66B/G05B core.
Post-peak · DeclineTop five filers hold nearly half of the leading-filer output
The top five filers account for 47% of the combined output of the hundred largest filers, and the top applicant alone holds 21 patent records. This level of concentration means that freedom-to-operate analysis is essential before entering the core control and lift-mechanics space. Mid-tier and emerging players will likely need to target niche subclasses or geographic gaps to avoid blocking positions held by Otis, Inventio AG, and Hitachi Ltd.
High concentrationNo co-applicant relationships identified in this corpus
The collaboration evidence is pending: no co-filing partnerships are recorded in the current dataset. The applicant mix does include academic entities such as Sangmyung University Seoul and Chandigarh University, suggesting some industry-academia activity at the fringes, but no formal co-applicant pairs are confirmed. Monitoring cross-sector filings between elevator OEMs and IoT or AI platform companies may surface emerging alliances.
Evidence pendingUS is the dominant filing jurisdiction; Asia and Europe are secondary
The United States leads all jurisdictions with 52 patent records, followed by China at 19 and the European Patent Office at 12. India, Singapore, the United Kingdom, and Japan each represent smaller but non-trivial positions. This distribution suggests that US prosecution is the primary battleground, while China’s growing share warrants watch given the presence of Chinese regional elevator manufacturers in the applicant list.
US-led · Asia growingGo 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.
Co-filing pairs, ranked by the number of jointly-filed patent families.
Otis and Inventio AG lead on core elevator control; Hitachi Ltd differentiates on safety and fault monitoring
Three established elevator OEMs occupy the top positions, each with a strong overlap in B66B and G05B subclasses. Technology emphasis and momentum diverge meaningfully below the top two.
Otis Elevator Co
Otis holds 21 patent records — the largest position in the corpus — concentrated across G05B 15 (control systems), B66B 1 (elevator dispatch and control), and B66B 5 (elevator safety). This breadth across both operational control and safety subclasses gives Otis the widest blocking position in the field. No recent momentum data flags a directional shift, indicating a stable, entrenched posture.
patent records: 21Inventio AG
Inventio AG holds 12 patent records, with its emphasis split evenly between B66B 1 and G05B 15 — closely mirroring Otis’s core focus — and extending into G05B 19 (programmable control). Applicant momentum shows Inventio AG as a new entrant in the most recent filing window, suggesting renewed or escalating activity from a prior base; this warrants close monitoring.
patent records: 12| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| Inventio AG | 1 | ▲ new entrant |
Digital processing, wireless networking, and image analytics are under-served relative to the core
Several IPC branches appear at the margins of the current corpus with low patent-record counts and shares, despite having plausible technical relevance to next-generation elevator control. These are observations of relative sparsity, not validated market opportunities.
G06F · Electric digital data processing
This branch carries 22 patent records but represents only 6% of the technology mix, a notably low share given how central software-defined control and edge computing are becoming to building automation. The sparse coverage suggests that IP around elevator-specific firmware architectures, data logging, and fault-prediction algorithms is not yet well staked out. A focused filing program targeting embedded computing and predictive maintenance in elevator contexts could establish differentiated positions, though existing G05B and B66B holders may extend into this space as well.
Search this in Eureka →H04W · Wireless communication networks
Wireless networking (H04W) appears in only 11 patent records, representing 3% of the mix, despite the obvious relevance of IoT connectivity, remote diagnostics, and 5G-enabled elevator monitoring. The low count may reflect that incumbent OEMs have not yet filed heavily in this intersection, or that prior art is held in the telecommunications domain rather than the elevator domain. An entrant with expertise in wireless protocol integration could find relatively open terrain, provided freedom-to-operate is confirmed against telecom incumbents.
Search this in Eureka →How leading filers differ across elevator control technology routes
Strength of each leader across the main technology routes.
| Player | G05B 15 · Control & regulating systems | B66B 1 · Lifts & escalators | B66B 5 · Lifts & escalators | B66B 3 · Lifts & escalators | F24F 11 · Air conditioning & ventilation |
|---|---|---|---|---|---|
| Otis Elevator Co | Strong · 21 | Strong · 20 | Moderate · 8 | Moderate · 7 | Absent |
| KONE Corporation | Strong · 13 | Strong · 13 | Moderate · 4 | Moderate · 4 | Absent |
| Inventio AG | Strong · 7 | Strong · 9 | Moderate · 4 | Moderate · 3 | Absent |
| Hitachi Ltd | Strong · 3 | Moderate · 2 | Strong · 5 | Strong · 4 | Absent |
| AIKEN THOMAS DAVID | Strong · 4 | Absent | Absent | Absent | Strong · 3 |
| Carrier Corp | Absent | Moderate · 2 | Absent | Absent | Strong · 5 |
| International Business Machines Corporation | Strong · 3 | Strong · 2 | Absent | Moderate · 1 | Absent |
Frequently asked questions
The analysis covers 39 patent families in scope. The applicant ranking is based on patent records, which can exceed the family count where a family has multiple national filings.
Otis Elevator Co leads with 21 patent records, followed by Inventio AG at 12 and Hitachi Ltd at 7. These three OEMs together represent the top tier of the competitive field.
The field is classified as Decline: annual filings peaked at 10 patent records in 2020 and have since eased. The most recent filing years (2024–2026) are likely under-counted due to publication lag.
The United States is the dominant jurisdiction with 52 patent records, followed by China at 19 and the European Patent Office at 12. India, Singapore, the United Kingdom, and Japan each hold smaller positions.
No co-applicant relationships are recorded in the current dataset. Academic filers such as Sangmyung University Seoul and Chandigarh University appear individually, but no formal co-filing pairs are confirmed.
Electric digital data processing (G06F, 22 patent records, 6% share) and wireless communication networks (H04W, 11 patent records, 3% share) are the largest adjacent branches with comparatively sparse coverage relative to their technical relevance to modern elevator systems.
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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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