Smart & Responsive Materials Patents: Who Leads, Where the Gaps Are 2026
- Filing is top-heavy. the leading assignee alone accounts for 31 of 249 records, and the top 5 combined hold 32.5% of all records in scope.
- Two unrelated fields dominate the claim space. digital-processing interfaces (G06F, 20.5% of records) and drilling/downhole tools (E21B, 12.4%) sit far ahead of coatings and additive manufacturing.
- Momentum is cooling among the biggest names. several of the most prolific historical filers show zero filings in the latest year, even as the field's 2021-to-2024 filing count fell 19%.
Filing growth compares 2021 (16 records) with 2024 (13) — 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. Top-5 share is the combined record count of the five largest assignees divided by all 249 records in scope (CR5), not by the ranked leaders only.
What counts as a smart or responsive material patent here
This landscape covers 249 published records filed or published between 2015 and the 2026 data cut-off, drawn from filings that combine stimuli-responsive or smart-material language with claims tied to material property, synthesis condition, structure-property relationships, or characterization data. That pairing is deliberate: it separates materials-science claims that describe an actual composition, structure or process from software or interface patents that merely reference “smart material” in passing.
The result is a mixed field. Some of the densest classes are downhole drilling tools and digital-processing interfaces rather than the coatings or polymer chemistry a reader might expect from the term "smart material" — a reminder that claim scope in this space is defined more by application than by any single materials platform.
Filing trend and technology composition
Two views of the same 249 records: how filing activity has moved year over year, and how those filings split across the IPC subclasses that receive the most claims.
Filing rose to a 2019 peak, then eased off
Annual filings climbed from 4 in 2017 to a peak of 16 in 2019, held near that level through 2021, and fell 19% from 2021 (16) to 2024 (13) — the last year with a broadly complete publication record. 2025 and 2026 figures will keep rising as later filings publish, since publication typically lags filing by around 18 months.
Digital processing and drilling lead technology composition
G06F (electric digital data processing) appears on 20.5% of the 249 records and E21B (earth and rock drilling) on 12.4%, ahead of surgical/diagnostic uses (A61B, 10.0%), sterilising and disinfecting (A61L, 9.2%), layered products (B32B, 8.0%), additive manufacturing (B33Y, 6.4%), catalysis (B01J, 6.0%) and coating processes (B05D, 4.8%). Because records can carry multiple IPC codes, these shares sum to well over 100% of the record total.
Shares are the percentage of the 249 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Smart & Responsive Materials Patent Landscape with Eureka
This page is one run against one query. Ask Eureka your own question about smart & responsive materials patent landscape and every answer comes back with the patent numbers behind it.
Try EurekaRepresentative filing and most-cited prior art
US20210228779A1 — Smart composite textiles and methods of forming
A smart material includes a composite textile that includes a textile substrate and a material disposed via an additive manufacturing technique onto the textile substrate based on an additive manufacturing pattern. The composite textile includes a gradient in at least one of mechanical property, material property, or structural property and/or exhibits a change in at least one mechanical property, material property, or structure in response to at least one external stimulus.Filed by BIOCONIX PTY LTD., published 2021-07-29 — illustrates the pattern common across this field: an additive-manufacturing process claim layered onto a stimuli-responsive material claim.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US6475639B2 | Ionic polymer sensors and actuators | 208 |
| 2 | US20050056463A1 | Steerable bit assembly and methods | 160 |
| 3 | US20110157080A1 | User Interface System | 121 |
| 4 | US20020039620A1 | Ionic polymer sensors and actuators | 117 |
| 5 | US20100139977A1 | Active Vibration Control for Subterranean Drilling Operations | 112 |
| 6 | US20070289778A1 | Active vibration control for subterranean drilling operations | 112 |
| 7 | US7287604B2 | Steerable bit assembly and methods | 104 |
| 8 | WO2024152019A1 | Systems and methods for building material based determinations | 100 |
| 9 | US7678440B1 | Deformable variable-stiffness cellular structures | 98 |
| 10 | US20070244641A1 | Active material based haptic communication systems | 97 |
Citation counts favour older filings simply because they have had more time to accumulate citations within this searched corpus; treat them as a signal of influence on later filers, not as a measure of present-day importance.
Each row carries its publication number; clicking a row searches Eureka by that number.
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Browse MCP servers →What the numbers mean for a filing decision
Three patterns stand out once families are separated from raw document counts and the most recent, still-incomplete years are set aside.
The top of the field is dense, but not locked
The leading assignee holds 31 records and the top 5 combined hold 81 — 32.5% of all 249 records in scope. That leaves two-thirds of filing activity spread across a long tail, including many single-filing entrants, which suggests core claim territory is contested rather than closed.
Interface and drilling applications outweigh coatings
G06F and E21B together touch a third of records when counted individually, ahead of surgical, sterilising and coating-process classes. A team assuming this field is dominated by polymer or coating chemistry will misjudge where the claim density actually sits.
Filing has eased from its 2019 peak
After peaking at 16 filings in 2019, the field's complete-year filing count fell 19% between 2021 and 2024. Several of the most historically prolific assignees show no filings at all in the latest year, though 2025-2026 counts will rise as later filings publish.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to smart & responsive materials patent landscape, with the prior art for and against each one.
Who is filing, and who has stopped
The ranked list covers 100 companies, counted in records — not a top-50 or top-100 cut, but the full set the data endpoint returns for this search.
One assignee sets the pace, others cluster below
The leading assignee's 31 records sit well ahead of fifth place (9) and tenth place (6), a steep drop-off that marks this as a field with one dominant filer rather than several evenly matched ones.
Top 10 hold under half the field
The top 10 combined account for 117 of 249 records — 47.0% of the field. That leaves a majority of filings distributed among a long tail, several of them single-record entrants testing narrow claim positions.
Historic leaders have gone quiet
Several of the assignees with the deepest historical filing counts, including drilling and interface-technology names, show zero filings in the most recent year. That does not necessarily mean exit — later-year publication is still catching up — but it is a clear shift in visible activity from the field's early leaders.
| Assignee | Recent year | YoY |
|---|---|---|
| Baker Hughes Holdings LLC | 0 | — |
| Immersion Corp | 0 | — |
| NOVASENTIS INC | 0 | — |
| PRICE DAWN | 0 | — |
| Searete LLC | 0 | — |
| Tactus Technology Inc | 0 | — |
| Dennisson Technologies Limited | 0 | — |
| SAAL NATHANIEL MARK | 0 | — |
Where to take this next
The dataset points to specific follow-up questions rather than a single conclusion — each depends on which side of the field a team is working from.
Check freedom-to-operate against the leader's cluster
With one assignee holding 31 of 249 records, any new filing touching the same application area should be checked against that cluster before drafting claims.
Run a freedom-to-operate checkWatch the 2025-2026 publication window
Because publication lags filing by roughly 18 months, the apparent slowdown after 2021 will partly fill in as later filings publish — re-check the trend before treating it as a real decline.
Track filing trends over timeProbe the under-claimed branches directly
Coating formulations, gradient-property textiles and catalysis-linked synthesis show thinner filing density than the dominant application classes, which is where a first-mover claim is more likely to stand.
Explore white space in EurekaCommon questions about this landscape
Filing in this field is concentrated at the top: the leading assignee holds 31 of the 249 records in scope, and the top 5 combined hold 32.5% of all records. Beyond the top 10, which together hold 47.0% of records, filing activity spreads across a long tail of companies with only a handful of records each. This pattern suggests a small number of players set the pace on core application claims, while many smaller filers stake out narrower positions rather than compete head-on.
Electric digital data processing (G06F) appears on 20.5% of the 249 records, more than any other IPC subclass, followed by earth and rock drilling equipment (E21B) at 12.4%. Diagnosis and surgery (A61B), sterilising and disinfecting (A61L), and layered products (B32B) each account for a further 8 to 10% of records. Because many filings carry more than one IPC code, these shares add up to well over 100% of the total record count, reflecting how often smart-material claims are bundled with a specific downstream application.
Filing activity rose from 4 records in 2017 to a peak of 16 in 2019, and the field's most recent complete-year comparison shows a 19% decline from 16 filings in 2021 to 13 in 2024. However, 2025 and 2026 figures are still incomplete because publication typically lags filing by around 18 months, so the apparent slowdown should be treated cautiously until later years finish publishing. Several previously prolific assignees show zero filings in the latest year, which is a more reliable near-term signal than the raw year-over-year count.
The densest claim territory sits in digital-processing interfaces and downhole drilling applications, while sub-areas such as stimuli-responsive coating formulations, gradient-property additive-manufactured textiles, and catalysis-linked shape-memory synthesis show comparatively thinner filing density. That does not guarantee novelty, but it indicates less crowded claim space relative to the field's dominant application areas. Any team considering these branches should still run a focused prior-art search rather than relying on aggregate density alone.
US20210228779A1, filed by Bioconix Pty Ltd and published in 2021, claims a composite textile made by depositing material via an additive-manufacturing technique onto a textile substrate, where the resulting structure carries a property gradient or responds to an external stimulus. It is a representative example of a recurring pattern in this dataset: pairing an additive-manufacturing process claim with a stimuli-responsive material claim. Anyone drafting in the smart-textile or gradient-property composite space should review its specific claim language before finalising a similar structure.
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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.