Perovskite Photovoltaics Patents: Who Leads, Where Gaps Are 2026
- 16.7% concentration at the top. The five most active assignees combined hold 443 of the 2,656 records in scope — a concentrated core with a long tail below it.
- Filing kept climbing through 2024. Filings rose from 216 in 2021 to 257 in 2024, a 19% increase over that three-year span, with 2023 the peak year so far at 310.
- Optoelectronics dominates the IPC mix. H10K organic semiconductor classifications appear on 68.4% of all records, while dedicated photovoltaic classes H02S and H10F sit far lower at 5.5% and 4.2%.
Filing growth compares 2021 (216 records) with 2024 (257) — 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 2,656 records in scope (CR5), not by the ranked leaders only.
What the perovskite photovoltaics patent record shows
Perovskite photovoltaics patenting sits at the intersection of solid-state chemistry and conventional solar-cell engineering, and the classification data reflects that split. The search captured 2,656 records filed or published between 2015 and the 2026 cut-off, spanning device architecture, hole-transport chemistry, and module-level power output claims. Publication lags filing by roughly 18 months, so the most recent one or two years in any trend understate real filing activity rather than signal a slowdown.
The assignee ranking covers 100 companies rather than the full applicant pool, and even within that ranked group activity is uneven: a small set of university and industrial labs account for a disproportionate share of records, while most named assignees appear only once or twice. That pattern is typical of a technology still moving from lab demonstration toward manufacturable devices — claim density builds fastest around the core absorber and transport-layer chemistry, and stays thin around integration and module-level engineering.
Filing trends and technology composition
Two views of the same 2,656-record corpus: how filing activity has moved year over year, and which IPC subclasses carry the claim volume.
Filing trend, 2017-2026
Annual filings rose from 188 in 2017 to a peak of 310 in 2023, then continued near that level through 2024 before the two most recent years show a partial count that will fill in as publication catches up. The 2021-to-2024 span shows a 19% increase in filings, which is the cleanest recent-growth figure the data supports.
IPC subclass composition
H10K (organic semiconductors) and H01L (semiconductor devices) between them touch a majority of records — 68.4% and 53.9% of the 2,656 records in scope, respectively — reflecting how much perovskite PV claiming still routes through general semiconductor-device language rather than solar-specific classes. Dedicated photovoltaic classes H02S and H10F, and supporting chemistry classes C07F, C07D and C23C, each cover a single-digit-to-mid-teens share, marking where claims are more specialised and less crowded.
Shares are the percentage of the 2,656 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Perovskite Photovoltaics Patent Landscape with Eureka
This page is one run against one query. Ask Eureka your own question about perovskite photovoltaics patent landscape and every answer comes back with the patent numbers behind it.
Try EurekaThe records other filers build around
Method for preparing hole transporting material for perovskite solar cell with improved long-term stability
The filing describes a hole-transport material preparation method aimed at perovskite solar cells, targeting higher hole mobility to improve power conversion efficiency while also addressing long-term device stability — one of the persistent gaps between lab-reported efficiency and field-durable devices.Filed by Kookmin University Industry Academy Cooperation Foundation, published 2020-12-03.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | WO2014045021A1 | Optoelectronic device | 517 |
| 2 | WO2013171520A1 | Optoelectronic device comprising perovskites | 312 |
| 3 | US20170341942A1 | Methods and systems for large scale carbon dioxide utilization from lake KIVU via a co2 industrial utilizatio… | 208 |
| 4 | US20150249170A1 | Optoelectronic device | 195 |
| 5 | WO2013171518A1 | Optoelectronic device comprising porous scaffold material and perovskites | 186 |
| 6 | US20160380125A1 | Photovoltaic device comprising a metal halide perovskite and a passivating agent | 99 |
| 7 | US20180298278A1 | Perovskite/polymer composite luminescent material, preparation method and use | 97 |
| 8 | US20150129034A1 | Optoelectronic device comprising perovskites | 85 |
| 9 | WO2015092397A1 | Photovoltaic device comprising a metal halide perovskite and a passivating agent | 82 |
| 10 | US20150122314A1 | Optoelectronic device comprising porous scaffold material and perovskites | 80 |
Citation counts favour older filings simply because they have had longer to accumulate references — treat them as a marker of influence on the field's foundational claims, not as 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 →Reading the concentration and growth data
Three figures from the dataset matter most for deciding where to file, litigate or license.
The top of the field is narrow, the rest is long
The five most active assignees combined account for 443 records, 16.7% of everything in scope, and the top ten reach 27.3% with 726 records. Below that the ranking of 100 companies thins out quickly, with the tenth-placed assignee holding only 48 records against the leader's 160.
Filing activity climbed through the last complete years
Filings grew from 216 in 2021 to 257 in 2024, and the corpus peaked at 310 in 2023. Because publication lags filing by roughly 18 months, 2025 and 2026 figures are still incomplete and should not be read as a plateau or decline.
Claims still route through general semiconductor classes
H10K and H01L together touch the majority of records, meaning much of the claim language sits in general organic-semiconductor and device-architecture territory rather than in the dedicated photovoltaic classes H02S (5.5%) and H10F (4.2%). That gap is where solar-specific integration claims remain comparatively open.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to perovskite photovoltaics patent landscape, with the prior art for and against each one.
Who is filing, and where the activity is thinning
The ranked group of 100 companies shows a familiar pattern for an emerging solar technology: a mix of university technology-transfer offices, national labs and a small number of manufacturers hold the densest portfolios, while momentum in the most recent year has cooled even for several of the historically active filers.
University and national-lab portfolios anchor the field
Technology-transfer entities and public research institutions occupy leading positions in the ranking, consistent with perovskite PV's continuing dependence on materials-science research rather than settled manufacturing processes.
Manufacturer filing has cooled sharply in the most recent year
Several assignees with strong historical filing show steep year-over-year drops in the latest tracked year, including one leading filer down 86% and another down 50%. Given the 18-month publication lag, part of this is measurement artefact rather than a genuine pullback.
Collaboration is concentrated in a few recurring pairs
Only ten co-assignee pairs appear in the dataset, and the strongest of them recur across dozens of shared records, pointing to a small number of stable joint-development relationships rather than a broad collaborative network.
| Assignee | Recent year | YoY |
|---|---|---|
| Ecole Polytechnique Federale de Lausanne (EPFL) | 1 | 0% |
| Zhejiang Jinko Solar Co., Ltd. | 1 | -86% |
| The University of North Carolina at Chapel Hill | 1 | -50% |
| Oxford University Innovation Ltd | 0 | — |
| Alliance for Sustainable Energy, LLC | 0 | -100% |
| Merck Patent GmbH | 0 | — |
| Okinawa Institute of Science and Technology School | 0 | — |
| Commonwealth Scientific and Industrial Research Organisation (CSIRO) | 0 | — |
Where to take this analysis
The dataset points to specific next steps depending on whether the goal is freedom-to-operate, licensing or R&D prioritisation.
Map claims against the under-claimed branches
Module integration, tandem interconnects and encapsulation carry far fewer records than core absorber chemistry, making them a lower-risk area to stake new claims.
Explore white space in EurekaTrack the leading portfolios' recent filings closely
Because publication lags filing, apparent drops in the latest year for several top assignees need confirming against fuller data before being read as a real pullback.
Set up assignee monitoring in EurekaReview the most-cited foundational filings
The most-cited records define the device architecture much of the field builds on; understanding their claim scope is a prerequisite for any freedom-to-operate opinion.
Read the key patents in EurekaCommon questions on perovskite photovoltaics patents
The ranking covers 100 companies and institutions, and it is led by an academic technology-transfer entity with 160 records, well ahead of the tenth-placed filer's 48. The top five combined hold 443 records, 16.7% of the 2,656 records in scope, so the field has a genuinely concentrated core rather than an even spread. Below the top ten, activity thins quickly into a long tail of single- or few-filing entrants, which is typical for a technology still moving out of university labs.
Using the last years that can be treated as complete, filings rose from 216 in 2021 to 257 in 2024, a 19% increase over that span, with a peak of 310 in 2023. The two most recent years in the raw trend show lower counts, but that reflects the roughly 18-month lag between filing and publication rather than an actual slowdown. Anyone tracking momentum should wait for those years to fill in before drawing conclusions.
The largest classes are H10K (organic semiconductors, including OLED-adjacent art) at 68.4% of the 2,656 records and H01L (semiconductor devices) at 53.9%, reflecting how much of the claim language is written in general semiconductor-device terms rather than solar-specific language. Dedicated photovoltaic classes H02S and H10F cover only 5.5% and 4.2% of records respectively, and supporting chemistry classes C07F, C07D and C23C each sit in the mid-single digits. Because records can carry multiple IPC codes, these percentages overlap rather than sum to 100%.
This filing from Kookmin University Industry Academy Cooperation Foundation, published 2020-12-03, covers a method for preparing a hole-transport material for perovskite solar cells aimed at improving long-term stability alongside power conversion efficiency. It sits in the hole-transport chemistry branch of the field rather than in device architecture or module integration. Anyone formulating a competing hole-transport material for a perovskite absorber should review its claim scope directly rather than relying on the abstract, since the preparation method itself is where the claim boundary likely sits.
The classification data shows dedicated photovoltaic classes H02S and H10F, and coating/deposition class C23C, carrying far fewer records than the dominant semiconductor-device classes, which points to module-level integration, tandem interconnect architecture and long-term encapsulation as comparatively under-claimed branches. These are areas adjacent to the dense absorber and transport-layer chemistry rather than replacements for it. A first claim in this space would typically pair a specific perovskite formulation with a defined mechanical or thermal integration step at the module level, rather than claiming the absorber chemistry alone.
Research Perovskite Photovoltaics Patent Landscape in depth with Eureka
Go past this page: query the whole perovskite photovoltaics patent landscape 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.