Wireless Power Transfer for Offshore Platforms Patent Landscape
This is a nascent, highly concentrated field of 16 patent families, with a single applicant—CapacTech Ltd—holding dominant share and all meaningful activity concentrated in a brief 2022–2024 burst. Engineers entering this space face a narrow but entrenched pioneer and substantial open territory across marine-specific and operational technology branches.
CapacTech Ltd dominates an emerging, highly concentrated field
The corpus spans 16 patent families globally, with CapacTech Ltd holding 11 patent families—by far the largest share of any single applicant. Honeywell International is the only recognized industrial incumbent in the ranking, represented by a single family.
The top five filers collectively account for 100% of the hundred largest filers’ combined total, a concentration level that is extreme even by the standards of early-stage niche fields. There is effectively a single dominant pioneer, with all other filers recording one family each.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | CapacTech Ltd | 11 | |
| 2 | Honeywell International Inc | 1 | |
| 3 | CapacTech Ltd (Russian filing entity) | 1 | |
| 4 | CapacTech Ltd | 1 |
CapacTech Ltd’s position implies meaningful first-mover advantages in power conversion and wireless charging architectures for offshore use. The absence of other large industrial players—oil and gas majors, subsea equipment OEMs, or offshore energy developers—suggests the field has not yet attracted broad institutional R&D investment.
Filings from 2024 onward are subject to standard patent publication lag and may be under-counted; the apparent absence of 2025–2026 activity does not reflect a confirmed halt in innovation. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
A single-year burst in 2022 defines the field’s filing history
The annual trend and technology composition together reveal a field that was essentially nonexistent before 2022 and is still defined primarily by power electronics rather than marine-specific engineering.
Annual filing trend
Zero activity is recorded from 2017 through 2021; 12 families appeared in 2022 alone, followed by two in each of 2023 and 2024. The 2022 spike corresponds closely to CapacTech Ltd’s initial portfolio buildout. Filings in 2024 and beyond remain subject to publication lag and should be interpreted cautiously—visible counts likely understate true recent activity.
↗ Hover for values · click a bar to ask EurekaTechnology composition
The dominant IPC classes are B60L (electric vehicle propulsion, 14 records) and H02M (power conversion, 13 records), reflecting the wireless charging circuit and inverter architectures at the core of the technology. H02J (power supply and grid systems, 6 records) adds a grid-interface layer. Marine-specific class B63B (ships and marine vessels) appears in only 3 records, and G06Q (business and administrative data processing) in 1—indicating that offshore-specific and operational technology dimensions remain sparsely covered.
↗ 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.
Offshore wireless power transfer system
The invention relates to an offshore wireless power transfer system for water vessels at least partially electrically driven comprising a primary interface coupled with a power source and a secondary interface coupled with the water vessel, the interfaces providing unidirectional or bidirectional power transfer which can be inductive, capacitive, and/or… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Power supply and distribution networks | 6 |
| 2 | Marine rechargeable power source system | 1 |
| 3 | Power supply and distribution networks | 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.
What the structure means for offshore wireless power R&D
Four structural observations stand out for teams assessing entry strategy, partnership options, and geographic positioning in this field.
Embryonic field with a single founding cohort
The lifecycle stage is not formally classified in the evidence, but the filing pattern—zero activity before 2022, a concentrated burst, then a taper—is characteristic of an embryonic technology where one actor has established early foundations. The technology is not yet validated at commercial scale, and standards for offshore application are absent. R&D investment at this stage carries high technical risk alongside high freedom to differentiate.
Early-stageSingle-pioneer structure with no second tier
CapacTech Ltd’s 11 patent families out of 16 total creates a stark single-tier structure. Honeywell International and individual inventor Podhola Kamil are the only other identifiable filers, each with minimal portfolios. There is no evidence of a competitive second tier; any new entrant would be entering a field shaped almost entirely by one actor’s architectural choices. This may limit licensing options but also signals that the broader industrial ecosystem has not yet committed.
Highly concentratedOne cross-entity co-filing identified between CapacTech entities
The evidence shows a single collaboration record between CapacTech Ltd and its Chinese-named counterpart entity (Kaibo Technology Co., Ltd.). This appears to reflect intra-group coordination across jurisdictions rather than an arms-length partnership. No cross-industry collaborations with energy majors, marine engineering firms, or academic institutions are evident in the data, leaving open the question of whether external partnerships are being pursued.
Minimal ecosystemUnited States leads filings; multi-jurisdiction coverage signals commercial intent
The United States leads with 4 patent records, followed by Israel, WIPO (PCT), and South Africa with 2 each. Single records appear in Australia, Canada, Europe (EPO), Hong Kong, India, Russia, and Singapore. The breadth of jurisdictions—despite a small total corpus—suggests the lead applicant is pursuing protective coverage across key offshore energy markets and trading hubs rather than concentrating in a single region. PCT filings indicate active international prosecution strategy.
US-led, globally spreadGo 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 |
|---|---|---|
| CapacTech Ltd | Kaibo Technology Co., Ltd. | 1 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
CapacTech Ltd pioneers; Honeywell and individual inventors trail at single-family scale
The applicant ranking is defined by a single dominant pioneer and a cluster of single-family filers. Momentum data confirms all active filers entered the field simultaneously as new entrants around 2022.
CapacTech Ltd
CapacTech Ltd holds 11 patent families, making it the unambiguous pioneer in this space. Its technology emphasis is concentrated on H02M power conversion circuits and B60L wireless charging architectures, with secondary coverage in H02J grid and supply systems—reflecting a power-electronics-first approach to offshore wireless transfer. Momentum is classified as a new entrant, with all 12 recent families appearing in a single cohort, suggesting a deliberate portfolio-building exercise rather than incremental R&D accumulation.
families: 11Honeywell International Inc
Honeywell International holds 1 patent family in scope, focused on H02J power supply and grid systems—consistent with its broader industrial automation and energy management portfolio. Its presence is notable as the only large industrial incumbent in the ranking, but a single family does not indicate a committed offshore wireless power program. Momentum data for Honeywell is not available in the applicant momentum evidence, so trajectory cannot be confirmed.
families: 1| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| CapacTech Ltd | 12 | ▲ new entrant |
| CapacTech Ltd (Russian filing entity) | 1 | ▲ new entrant |
How filers differ by technology route across power conversion, marine, and grid branches
Route coverage across the main technology branches in the current evidence set.
| Player | H02M 1 · Power conversion (AC/DC etc.) | B60L 53 · Electric vehicle propulsion | H02J 50 · Power supply & grid systems | B63B 35 · Ships & marine vessels | H02J 3 · Power supply & grid systems |
|---|---|---|---|---|---|
| CapacTech Ltd | Strong · 10 | Strong · 9 | Emerging · 2 | Absent | Absent |
| CapacTech Ltd (Russian filing entity) | Strong · 1 | Absent | Absent | Absent | Absent |
| Honeywell International Inc | Absent | Absent | Strong · 1 | Absent | Absent |
Frequently asked questions
The corpus comprises 16 patent families in scope globally. This is a very small corpus, reflecting an embryonic field where widespread commercial deployment has not yet occurred and most patent activity is concentrated in a single applicant.
CapacTech Ltd holds 11 patent families, making it the clear pioneer. The only other named industrial incumbent is Honeywell International Inc, with 1 patent family. All other filers—including individual inventor Podhola Kamil—also hold single families.
No filings are recorded from 2017 through 2021. Activity began sharply in 2022, when 12 families appeared, followed by 2 families each in 2023 and 2024. The field is effectively less than five years old by filing date.
The United States leads with 4 patent records. Israel, WIPO (PCT), and South Africa each have 2 records. Single records appear in Australia, Canada, Europe (EPO), Hong Kong, India, Russia, and Singapore, suggesting the lead applicant has pursued broad international coverage.
The leading IPC classes are B60L (electric vehicle propulsion, covering wireless charging circuits) and H02M (power conversion), each with over a dozen records. H02J (power supply and grid systems) has 6 records. Marine-specific class B63B has only 3 records, indicating that offshore-specific mechanical integration is under-represented relative to the power electronics core.
One co-filing record is identified between CapacTech Ltd and its Chinese-entity counterpart, which appears to reflect intra-group activity across jurisdictions. No cross-industry collaborations with energy majors, marine OEMs, or academic institutions are evident in the 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.
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