Powder Coating & Wood Grain Transfer Patents: Leaders & Gaps 2026
- One assignee dominates the field. the leader holds 43 records against a fifth-place count of 3 and a tenth-place count of 1, out of 17 ranked companies.
- Filing peaked in 2018 at 35 records and has not returned to that level since; the 2021-to-2024 span shows a -50% shift, though 2025-2026 figures are still filling in.
- Electrography classes touch 65.2% of records showing the field is claimed as much through transfer/imaging mechanics as through coating chemistry itself.
Filing growth compares 2021 (2 records) with 2024 (1) — a three-year span. 2024 is the most recent year we treat as complete: publication lags filing by roughly 18 months, so 2025 onwards are still filling in and any growth rate that ends there would understate the field.
What this landscape covers
This landscape tracks patent activity at the intersection of powder coating and wood grain transfer processes applied to profiles — the pretreatment, cure-oven, and film-transfer steps that turn a bare extrusion into a weathering-grade, wood-look finished part. The search spans 66 published records filed between 2015 and mid-2026, pulling together assignees ranging from paint and coatings specialists to individual inventors and single-site manufacturers.
The dataset is small enough that individual filings move the picture, and concentrated enough at the top that one company's portfolio shapes what looks 'occupied' versus 'open'. Publication lags filing by roughly 18 months, so the most recent one to two years understate real filing activity.
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Filing trend and technology composition
Two views of the same 66-record dataset: how filing activity has moved year over year, and which IPC subclasses carry the claim language.
Filing trend, 2017-2026
Filings rose from 9 in 2017 to a peak of 35 in 2018, then pulled back. The 2021-to-2024 window shows a -50% change (2 down to 1); 2025 and 2026 are not yet complete counts because of publication lag, so they should not be read as a continued decline.
IPC subclass composition
G03G (electrography and electrophotography) touches 65.2% of the 66 records, ahead of B05D coating processes at 27.3% and C09D coatings/paints/inks at 25.8%. Because records can carry multiple IPC codes, these shares sum to well over 100% — the signal is which mechanics get claimed together, not a clean split of the field.
Shares are the percentage of the 66 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Powder Coating and Wood Grain Transfer on Profiles with Eureka
This page is one run against one query. Ask Eureka your own question about powder coating and wood grain transfer on profiles and every answer comes back with the patent numbers behind it.
Try EurekaMost-cited records and a recent representative filing
Wood grain transfer process for height-adjustable tables (US20250010601A1)
Filed by Ningbo Yaoze Intelligent Technology in early 2025, the process attaches wood grain thermal transfer paper to a pre-coated metal component's transfer surface using thermal transfer adhesive, then bakes the wrapped part with temperature and time adjusted to the component's characteristics, the desired texture depth, and the oven's own performance profile.Abstract text drawn directly from the published filing.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20020114884A1 | Process for applying a coating to a continuous steel sheet and a coated steel sheet product therefrom | 59 |
| 2 | US20080202282A1 | Vehicle Steering Wheel and Method For Making Same | 42 |
| 3 | WO2006127835A2 | Vehicle steering wheel and method of making same | 27 |
| 4 | WO2002018065A2 | Process for applying a coating to a continuous steel sheet and a coated steel sheet product therefrom | 15 |
| 5 | CN106564311A | 一种木纹热转印膜或纸的制备方法 | 14 |
| 6 | US20200002555A1 | Curable coating material for non-impact printing | 12 |
| 7 | US20200131377A1 | Curable coating material for non-impact printing | 7 |
| 8 | WO2018167007A1 | Curable coating material for non-impact printing | 5 |
| 9 | WO2018167000A1 | Curable coating material for non-impact printing | 5 |
| 10 | WO2018167020A1 | Curable coating material for non-impact printing | 5 |
Citation counts favour older filings simply because they have had more time to accumulate citations within the searched corpus — treat this as a signal of influence, not of current relevance.
Patent titles are shown in the language they were filed in, not translated, so that each record stays verifiable against the original filing — a translated title will not match in Eureka or in any national register. Each row carries its publication number; clicking a row searches Eureka by that number.
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Browse MCP servers →What the data implies for filing strategy
Three read-throughs from the assignee ranking, the IPC composition, and the citation table.
One assignee's portfolio sets the baseline
With the leading assignee at 43 records against a fifth-place count of 3 across 17 ranked companies, most of the claimed ground in this dataset sits inside a single portfolio. New entrants are effectively filing around one incumbent's positions rather than into open territory.
Transfer mechanics dominate over coating chemistry
G03G electrography and electrophotography classes appear on 65.2% of the 66 records, well ahead of coating-process classes B05D (27.3%) and coatings/paints C09D (25.8%). Claims here are as likely to be about how the image or grain pattern is transferred as about what the coating itself is made from.
Foundational steel-coating art still anchors citations
The most-cited record in this set, US20020114884A1, concerns coating continuous steel sheet rather than aluminium profiles or wood grain transfer specifically — a reminder that citation weight in a searched corpus rewards age and breadth, not necessarily relevance to today's profile-coating claims.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to powder coating and wood grain transfer on profiles, with the prior art for and against each one.
Who is filing, and where they cluster
The ranking covers 17 companies with published families in this dataset — not a top-50 or top-100 list, the full set the search returns. Momentum by assignee shows recent-year activity flat to zero across the named leaders, consistent with a field where most claim space was staked out earlier in the window.
A single dominant filer
The top-ranked assignee holds 43 records, far ahead of the rest of the field; its recent-year momentum reads flat, meaning the bulk of its portfolio was built before the most recent filing years.
Small, tightly linked filing groups
Spectrum Cubic appears in three separate co-assignee pairs at the maximum observed strength of 3, alongside individual named inventors — a pattern typical of a small team filing consistently together rather than a large distributed R&D operation.
New entrants still filing narrow process claims
Ningbo Yaoze's 2025 filing on wood grain transfer for height-adjustable tables shows the field is still attracting narrowly scoped process claims from manufacturers outside the historical leader group, even as aggregate filing counts have not returned to their 2018 peak.
| Assignee | Recent year | YoY |
|---|---|---|
| Tigerwerk Lack & Farbenfabrik GmbH & Co. KG | 0 | — |
| Foshan Changsheng Xinglong Decoration Materials Co., Ltd. | 0 | — |
| SPECTRUM CUBIC | 0 | — |
| DECO AUSTRALIA PTY LTD | 0 | -100% |
| Bethlehem Steel Corporation | 0 | — |
| SCHLENK JR DANIEL L | 0 | — |
| MABIE TIMOTHY R | 0 | — |
| FITZGERALD BRENDAN J | 0 | — |
Where to take this
The dataset points to a concentrated core and several thinner branches. The next steps depend on whether the goal is freedom-to-operate or identifying open filing space.
Map the leader's claim boundaries
With one assignee holding 43 of the ranked records, a freedom-to-operate check should start by mapping exactly which process steps and material claims that portfolio covers, rather than treating the field as evenly distributed.
Explore the leader's portfolio in EurekaTest the under-claimed branches
Chromium-free pretreatment and overspray recovery show thin representation relative to the core coating and transfer classes — worth a targeted search before assuming the space is open.
Run a white-space search in EurekaTrack post-2024 filings as they publish
Because publication lags filing by roughly 18 months, 2025-2026 activity is still incomplete in this dataset; a recurring watch is the practical way to catch new entrants as they surface.
Set up a filing watch in EurekaCommon questions about this landscape
One assignee leads the ranked field with 43 records, well ahead of the fifth-placed company at 3 and the tenth-placed company at 1, across 17 ranked companies total. This is a concentrated field rather than an evenly spread one, so freedom-to-operate work should prioritise mapping that leader's claims first. The gap between first and fifth place is large enough that most other filers hold only a handful of records each.
Filing peaked in 2018 at 35 records after rising from 9 in 2017, then declined; the most recent complete comparison, 2021 to 2024, shows a -50% change. However, 2025 and 2026 figures are not yet reliable because publication typically lags filing by around 18 months, so recent years will fill in as more applications publish. Treat any apparent recent drop-off as an artefact of publication timing rather than a confirmed slowdown.
G03G, the electrography and electrophotography subclass, appears on 65.2% of the 66 records in scope, more than any other IPC class in this dataset. Coating-process claims under B05D (27.3%) and coatings/paints/inks under C09D (25.8%) follow. Because a single record can carry multiple IPC codes, these percentages overlap rather than sum to 100%, and the pattern suggests the transfer and imaging mechanics are claimed as heavily as the coating chemistry itself.
Sub-areas with thin representation relative to the core coating and transfer classes include chromium-free pretreatment chemistries, overspray recovery and reclaim systems, edge-coverage uniformity on complex profile geometries, cure-oven temperature and time profiling tied to texture depth, and weathering-grade transfer film adhesion. These are candidate branches to search in more depth before assuming freedom to file, since a thin count in one search is not proof of an empty space. A targeted prior-art search on each specific mechanism is the practical next step.
The most-cited record, US20020114884A1, covers a process for applying a coating to continuous steel sheet and the resulting coated steel product, cited 59 times within this corpus. It predates and sits outside the wood grain transfer and aluminium profile focus of most other records here, illustrating that high citation counts in a searched corpus often reflect age and breadth rather than direct relevance to current claims. Anyone evaluating blocking risk should read the specific claims rather than relying on citation rank alone.
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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.
Machine translation. Assignee and organisation names originally recorded in Chinese, Japanese or Korean have been rendered into English by an AI translation step so that the tables stay readable. These renderings are best-effort and may not match a company’s registered English name; the original name is what the underlying patent record carries, and it is what any Eureka query launched from this page uses.