Wireless Power Transfer for Mining Operations Patent Landscape
The wireless power transfer for mining operations patent space is concentrated, with WiTricity-affiliated entities holding the dominant position and the top five filers accounting for nearly half of the largest filers’ combined output. The field reached a peak in 2023 and remains active on a multi-year basis, though annual volume has eased from that peak.
WiTricity-affiliated entities lead a concentrated field
WiTricity AI Tech LLC ranks first with 48 patent records, followed by Strong Force EE Portfolio 2022 LLC at 36 and Mojo Mobility Inc at 18. The top tier is clearly defined, with a notable step-down to the mid-tier beginning at InvertedPower Pty Ltd with 16 patent records.
The top five filers account for 47% of the hundred largest filers’ combined total, signaling a moderately concentrated competitive structure where a small cluster of IP-holding entities and operating companies control the dominant share of recorded activity.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | WiTricity AI Tech LLC | 48 | |
| 2 | Strong Force EE Portfolio 2022 LLC | 36 | |
| 3 | Mojo Mobility Inc. | 18 | |
| 4 | InvertedPower Pty Ltd | 16 | |
| 5 | WiTricity Corp | 11 | |
| 6 | Qualcomm Inc. | 10 | |
| 7 | Transportation IP Holdings LLC | 10 | |
| 8 | Voice Life Holdings Ltd | 9 | |
| 9 | NINGBO GEELY AUTOMOBILE RES & DEV CO LTD | 8 | |
| 10 | Zhejiang Geely Holding Group Co., Ltd. | 8 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 11 | Cuisonic Inc. | 7 | |
| 12 | Electric Power Research Institute Inc. | 7 | |
| 13 | WHOOP Inc. | 6 | |
| 14 | Elwha LLC | 5 | |
| 15 | Norris, Timothy Sweyn | 5 | |
| 16 | Dames, Andrew Nicholas | 5 | |
| 17 | Quaze Technologies Inc. | 4 | |
| 18 | Analog Devices International Unlimited Co. | 4 | |
| 19 | Navigate LLC | 4 | |
| 20 | Voice Life Inc. | 3 |
The leadership positions of WiTricity AI Tech LLC and WiTricity Corp, taken together, reinforce that the WiTricity IP portfolio is the central gravitational force in this space. Strong Force EE Portfolio 2022 LLC’s presence as a new entrant challenger indicates active portfolio assembly rather than organic R&D growth.
Patent publications typically lag filings by 18–24 months, so activity in 2024–2025 is likely under-counted; the apparent softening in those years should not be read as a real decline. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
A 2023 filing peak and a power-electronics-dominant technology mix
The annual trend chart shows how activity has evolved over the past decade, while the technology composition chart reveals which IPC classes define the field’s technical core and where adjacent work is thinner.
Annual filing trend
Filings were relatively flat from 2017 to 2020, then jumped sharply in 2021 to 24 and reached a peak of 31 in 2023. Activity eased to 15 in 2024 and 18 in 2025; both figures are subject to upward revision due to publication lag and should not be interpreted as a structural decline. The 24% recent-window growth confirms the multi-year trajectory remains positive.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H02J (Power supply and grid systems) dominates with 259 patent records, reflecting the field’s foundation in inductive and resonant power transfer circuits. B60L (Electric vehicle propulsion) and H01F (Magnets, inductors and transformers) form a secondary cluster, pointing to vehicle-charging and coil-design work that crosses over from broader EV wireless charging. G06F, H04B, H04L, and G06N together represent a meaningful digital and AI-control layer that is growing in relative prominence.
↗ 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.
Opportunity charging system for battery powered mi…
An opportunity charging system for a battery-powered, mobile mining machine employs inductive power transfer for transferring battery charging current produced by a rapid charging station to the battery of the machine. An alignment module of the charging station automatically aligns primary coils of the charging station with pick-up coils carried by the… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Wireless energy transfer between a source and a ve… | 1,006 |
| 2 | System for wireless power transfer that supports i… | 647 |
| 3 | Wireless energy transfer with variable size resona… | 500 |
| 4 | Wireless energy transfer for vehicles | 430 |
| 5 | Wireless energy transfer converters | 426 |
| 6 | Submersible contactless power delivery system | 377 |
| 7 | Wireless energy transfer with variable size resona… | 345 |
| 8 | Wireless energy transfer for vehicles | 340 |
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
Four structural signals — maturity stage, competitive concentration, collaboration patterns, and geographic reach — shape where entry or differentiation is most viable for teams considering this space.
Field at plateau after a 2023 peak
The lifecycle evidence places the field at a Maturity stage: annual filings plateaued near their peak, with 2023 representing the highest single-year count. The multi-year growth window remains positive at 24%, meaning cumulative activity is still expanding even as the pace of new filings has stabilised. Entrants should expect incremental rather than explosive white-space openings in the core H02J domain.
Lifecycle: MaturityTop five filers hold 47% of the hundred largest filers’ share
WiTricity AI Tech LLC alone holds 48 patent records, nearly double the second-ranked filer. This concentration means core inductive and resonant transfer IP is heavily controlled by a small group of entities. New entrants face a significant prior-art landscape in the dominant H02J and H01F classes and should consider differentiated routes in adjacent branches such as AI-based control or subsurface geophysical sensing.
High concentrationNo recorded co-applicant activity in this corpus
The collaboration evidence is pending — no co-applicant filings are recorded in the current dataset. This absence may reflect proprietary IP strategies among the leading portfolio entities, or it may indicate that cross-institutional mining-specific R&D consortia have not yet translated into joint patent filings. It represents a structural gap that a well-positioned research institution or mining OEM could exploit by anchoring a collaborative programme.
Evidence pendingUS-centric filing with limited international coverage
The United States leads with 176 patent records, well ahead of Europe (EPO) at 33 and WIPO (PCT) at 22. Canada and India each show modest activity at 10 and 9 records respectively, while Australia at 6 records is notable given its significance as a mining jurisdiction. The thin Australian and Canadian coverage relative to the importance of those mining markets suggests room for jurisdictional expansion by applicants seeking enforceable positions in key resource economies.
US-dominantGo 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.
WiTricity entities dominate; Strong Force emerges as a fast-moving challenger
The two leading positions are held by distinct strategic profiles: an established IP portfolio entity anchored in resonant transfer hardware, and a newly assembled portfolio that pairs grid-systems IP with AI-model claims.
WiTricity AI Tech LLC
WiTricity AI Tech LLC leads with 48 patent records, concentrated in H02J7 (power supply circuits), H01F38 (inductive coil and transformer design), and H02J5 (grid interconnection). This focus reflects deep ownership of the foundational resonant magnetic coupling stack. The WiTricity Corp entity (11 patent records) reinforces the same technical cluster, making the combined WiTricity footprint the dominant IP block in the field. Momentum data for this entity is not separately available in the recent-window breakdown, but their cumulative position is well-established.
48 patent recordsStrong Force EE Portfolio 2022 LLC
Strong Force EE Portfolio 2022 LLC holds 36 patent records and is flagged as a new entrant with a marked upward trend — 27 of its records were filed in the recent window. Its technology focus is concentrated in H02J3 (grid power systems), G06N20 (machine learning), and G06N3 (neural network computing), distinguishing it sharply from the hardware-centric WiTricity cluster. This AI-and-grid combination suggests a strategic bet on intelligent power management rather than transfer hardware, making it a differentiated challenger rather than a direct overlap.
36 patent records| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| Strong Force EE Portfolio 2022 LLC | 27 | ▲ new entrant |
Under-served adjacent branches worth monitoring
Several IPC classes adjacent to the dominant H02J core show relatively lower patent density, representing areas where technical coverage is thinner and where applied mining-specific work could differentiate a new entrant’s portfolio.
G06N · AI-based power control
G06N (Computing based on AI models) accounts for 31 patent records at 4% share of the technology composition — sparse relative to the 259-record H02J core. Strong Force EE Portfolio 2022 LLC has begun moving into this space, but the overall density remains low. For mining applications specifically, AI-based adaptive resonance tuning for variable-geometry underground environments (equipment moving through tunnels, dust, and metallic interference) represents a plausible and technically grounded entry path that has not yet been heavily contested.
Search this in Eureka →G01V · Geophysics and subsurface sensing
G01V (Geophysics and gravity surveying) appears with only 1 patent record, making it the sparsest branch with direct relevance to mining environments. Integrating wireless power delivery with subsurface geophysical sensing instruments — for example, powering in-seam sensors or autonomous drilling telemetry without cable runs — is a technically coherent application that remains almost entirely unclaimed in this corpus. Entities with backgrounds in mining instrumentation or downhole tool design would have a plausible entry path here.
Search this in Eureka →How leading filers differ by technology route
Route coverage across the main technology branches in the current evidence set.
| Player | H02J 7 · Power supply & grid systems | H02J 50 · Power supply & grid systems | H02J 3 · Power supply & grid systems | H02J 5 · Power supply & grid systems | H01F 38 · Magnets, inductors & transformers |
|---|---|---|---|---|---|
| WiTricity Corporation | Strong · 43 | Strong · 30 | Emerging · 4 | Strong · 31 | Strong · 31 |
| Strong Force EE Portfolio 2022 LLC | Absent | Absent | Strong · 36 | Absent | Absent |
| Mojo Mobility Inc. | Strong · 16 | Strong · 9 | Absent | Absent | Absent |
| Campanella, Andrew J. | Strong · 10 | Absent | Absent | Moderate · 5 | Strong · 6 |
Frequently asked questions
The current corpus contains 145 patent families in scope. This figure covers the global landscape as captured in the PatSnap Eureka dataset and is subject to upward revision as recently filed applications clear the publication lag window.
WiTricity AI Tech LLC leads with 48 patent records, well ahead of the second-ranked Strong Force EE Portfolio 2022 LLC at 36. Together with WiTricity Corp (11 patent records), the WiTricity group holds the most substantial IP position in the field.
The field is at a Maturity stage. Annual filings peaked at 31 in 2023 and have eased since, though the recent-window growth figure of 24% confirms that cumulative activity over the multi-year window is still up. The 2024 and 2025 figures are likely under-counted due to publication lag and should not be read as a real decline.
The United States is the dominant filing jurisdiction with 176 patent records. Europe (EPO) is second at 33, followed by WIPO (PCT) at 22, Canada at 10, India at 9, and Australia at 6. Australia’s relatively thin coverage is notable given its status as a major mining jurisdiction.
H02J (Power supply and grid systems) dominates with 259 patent records, reflecting the primacy of inductive and resonant circuit design. B60L (Electric vehicle propulsion) and H01F (Magnets, inductors and transformers) form a secondary cluster, with a growing layer of digital control and AI classes including G06F, H04B, H04L, and G06N.
Yes. G01V (Geophysics and gravity surveying) has only 1 patent record despite clear relevance to underground mining power delivery. G06N (AI-based control models) at 31 records and H04B (General transmission) at 38 records are also sparse relative to the H02J core, and mining-specific applications within those branches remain largely unclaimed.
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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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