Conductive Ink Patents: Leaders, Trends & White Space 2026
- Filing has cooled since its 2018 peak. 123 families in 2018 fell to a 2022 midpoint of 49, and the newest years sit near their lowest levels since 2017 — even accounting for publication lag.
- Coatings and printed-circuit claims dominate. C09D (1,134 records) and H05K (947) together outweigh the core conductor class H01B (623), showing most claim activity sits in formulation and integration rather than raw conductor design.
- Recent-year momentum has gone flat across the named leaders. Several tracked assignees show zero filings in the latest year, and the one still active is down 67% year-on-year — a sign the field's biggest names have largely staked their positions.
Filing growth compares 2021 (55 records) with 2024 (54) — 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 1,822 records in scope (CR5), not by the ranked leaders only.
What this dataset covers
This landscape tracks patent families combining conductive ink, printed electronics ink and silver nanoparticle ink language in the title or abstract with claims language on sintering temperature, sheet resistance, flexibility, adhesion to substrate or screen printing — restricted to IPC classes H01B1, C09D11 and H05K3. That combination isolates the applied engineering layer: formulations and processes meant to survive printing and end-use, not general materials science claims that happen to mention conductivity.
The corpus spans 2015 through the 2026 data cut-off and holds 1,822 published patent families, distributed across receiving offices led by the United States, EPO and China. Because publication lags filing by roughly 18 months, the most recent one to two years will always look thinner than they will eventually turn out to be.
Filing trends and technology composition
Two views of the same 1,822-family corpus: how filing volume has moved year over year, and which IPC subclasses carry the claim density.
A 2018 peak followed by a decline
Filings rose to 123 in 2018 before easing back toward a 2022 midpoint of 49 and continuing lower into the most recent tracked year (10, partial). This is consistent with a technology whose core formulation space was claimed early, rather than one still accelerating.
Coatings and circuit integration lead conductor chemistry
C09D (coatings, paints and inks) leads at 1,134 records, ahead of H05K (printed circuits and assemblies) at 947 and H01B (cables, conductors and insulators) at 623. Smaller but notable activity sits in H01L semiconductor devices (169), B41M printing processes (161), B22F powder metallurgy (83), B05D coating processes (72) and C08K polymer additives (69) — the latter four suggesting narrower, more specialised filing pockets.
Shares are the percentage of the 1,822 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Conductive Inks and Printed Electronics with Eureka
This page is one run against one query. Ask Eureka your own question about conductive inks and printed electronics and every answer comes back with the patent numbers behind it.
Try EurekaThe most-cited records anchoring this field
US5802970A — Screen printing apparatus (Tani Electronics Industry)
A screen printing apparatus for printing solder, conductive ink and similar materials on an insulating substrate, using synchronized extruding, agitating and squeegee mechanisms for consistent, accurate and rapid printing.Filed by Tani Electronics Industry Co., Ltd.; issued 1998-09-08. Included here as a representative equipment-side claim rather than a formulation claim.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US5566441A | Attaching an electronic circuit to a substrate | 459 |
| 2 | US20040061232A1 | Multilayer substrate | 405 |
| 3 | US20190132948A1 | Physiological monitoring garments | 260 |
| 4 | US20100000441A1 | Nano graphene platelet-based conductive inks | 258 |
| 5 | EP0615285A2 | Attaching an electronic circuit to a substrate | 258 |
| 6 | US8948839B1 | Compression garments having stretchable and conductive ink | 241 |
| 7 | WO2006093398A1 | Conductive INKS and manufacturing method thereof | 191 |
| 8 | US6068782A | Individual embedded capacitors for laminated printed circuit boards | 159 |
| 9 | US5286415A | Water-based polymer thick film conductive ink | 153 |
| 10 | US20140035995A1 | Aerosol jet printable metal conductive INKS, glass coated metal conductive INKS and UV-curable dielectric INK… | 148 |
Citation counts reflect influence within this searched corpus and skew toward older filings; they are not a measure of current commercial relevance.
Each row carries its publication number; clicking a row searches Eureka by that number.
Put your own technology through the same analysis
Eureka on the web
When you want the answer in the next five minutes.
The agent works the prompt against patents and technical literature, citing every source.
Run your analysis now →MCP server & REST API
When it has to run inside your own pipeline.
Patent search, landscape analysis and assignee resolution as MCP tools. Drop them into any agent framework, or call REST directly.
Browse MCP servers →What the numbers mean for a filing decision
Three patterns stand out once families are counted rather than raw documents, and once recent-year momentum is checked against the historical peak.
The formulation land grab already happened
Filing peaked in 2018 and has trended down since, with the 2022 midpoint at 49. New entrants filing broad silver-ink or sintering-temperature claims now face a denser prior art field than entrants did in 2017-2018.
Formulation claims outweigh conductor claims
Nearly double the H01B volume sits in C09D — coatings, paints and inks — meaning the ink chemistry and its printability (adhesion, flexibility, sintering behaviour) is where most claim space has actually been staked, not the underlying conductor physics.
Named leaders have largely gone quiet
Several of the assignees with the deepest historical filing records show zero activity in the latest tracked year, and the one still filing is down sharply year-on-year. That pattern is more consistent with portfolio maintenance than active expansion.
Co-filing is concentrated in one cluster
Of the ten identified co-assignee pairs, the strongest links point to a single group of related entities filing jointly, rather than a broad web of cross-industry collaboration.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to conductive inks and printed electronics, with the prior art for and against each one.
Who holds the claim space
Filing activity concentrates among a handful of named assignees with deep historical portfolios, most of whom have slowed or stopped filing in the most recent tracked year — leaving openings for new entrants willing to work in the less-claimed sub-areas below.
Henkel-linked entities co-file most densely
The strongest co-assignee pairing in the dataset links Henkel's IP holding entity with its operating company, with a further link to a Shanghai-based affiliate — a tight, related-party filing cluster rather than an industry-wide alliance.
Even the most active named assignee is slowing
The one tracked assignee still filing in the latest year shows a sharp year-on-year decline, suggesting even specialists close to display and e-paper materials are pulling back from new conductive-ink filings.
Equipment-side claims sit alongside formulation claims
Not all influential filings are chemistry claims: screen-printing apparatus patents establish process-side prior art that formulation entrants also need to clear, particularly around squeegee and substrate-handling mechanisms.
| Assignee | Recent year | YoY |
|---|---|---|
| E Ink Corporation | 1 | -67% |
| Xerox Corporation | 0 | — |
| Henkel IP & Holding GmbH | 0 | — |
| BASF SE | 0 | — |
| Henkel AG & Co. KGaA | 0 | -100% |
| Toyo Ink Mfg. Co., Ltd. | 0 | — |
| DIC Corporation | 0 | — |
| Sun Chemical Corporation | 0 | — |
Where to take this analysis
The trends above describe where the field has been. Deciding where to file next means testing a specific claim against this same prior art set.
Check a draft claim against the dense C09D/H05K core
Run a specific formulation or process claim — sintering temperature range, substrate adhesion method, sheet resistance target — against the most-cited records before drafting further.
Explore in Eureka →Track the assignees that have gone quiet
Zero-filing status in the latest year does not mean an abandoned position; confirm whether continuations or divisionals are still pending before assuming freedom to operate.
Explore in Eureka →Map the under-claimed branches to your own roadmap
Sub-areas like low-temperature sintering on flexible substrates show thinner claim density here — worth a closer novelty check if that is where your R&D is headed.
Explore in Eureka →Common questions on conductive ink patents
The dataset shows filing concentrated among a small set of specialty chemical and materials firms, including entities linked to Henkel, along with e-ink and printed-electronics specialists. Several of these assignees hold large historical portfolios but show little to no filing activity in the most recent tracked year, which suggests the field's biggest names have largely completed their core claim positions rather than actively expanding them. Co-assignee data also shows a tight cluster of related-party filings rather than broad cross-company collaboration, so treat single-assignee counts as a partial picture of any one corporate family's actual footprint.
Not on the evidence here: filings peaked at 123 in 2018, fell to a midpoint of 49 by 2022, and the most recent tracked year sits far lower still. Because publication typically lags filing by around 18 months, the last one to two years will look thinner than they eventually will once all pending applications publish, but the multi-year decline predates that lag effect. The pattern is more consistent with a maturing claim landscape than an emerging one.
C09D (coatings, paints and inks) carries the largest share of records at 1,134, followed by H05K (printed circuits and assemblies) at 947 and H01B (conductors and insulators) at 623. Secondary classes — H01L semiconductor devices, B41M printing processes, B22F powder metallurgy, B05D coating processes and C08K polymer additives — cover smaller but more specialised filing pockets. The heavier weight in coatings and circuit integration versus raw conductor claims indicates most patent activity targets how the ink behaves on a substrate rather than the underlying conductive material itself.
US5802970A claims a screen printing apparatus with synchronized extruding, agitating and squeegee mechanisms for printing solder, conductive ink and similar materials onto insulating substrates — it is an equipment and process patent, not a formulation patent. It does not directly block new ink chemistry claims, but anyone commercialising a screen-printed conductive ink product should check whether their printing line's mechanical configuration falls within its process claims. Formulation-only entrants working through other deposition methods, such as inkjet or aerosol printing, are unlikely to be affected by it.
The dense claim areas sit in general silver-ink formulation, sheet resistance and screen printing process claims within C09D and H05K. Thinner but still technically credible areas in this corpus include low-temperature sintering on flexible film substrates, adhesion-promoting primer layers under screen-printed ink, nano graphene platelet ink blends, and polymer additive systems aimed at stretchable conductors. Any of these would need a focused novelty search rather than a general landscape reading before committing to a specific claim scope.
Research Conductive Inks and Printed Electronics in depth with Eureka
Go past this page: query the whole conductive inks and printed electronics corpus yourself, in your own scope.
Every answer comes back with patent numbers you can open.
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.