Perovskite Silicon Tandem Cells Patents: Top Companies & Trends 2026
Perovskite silicon tandem cell patents: who holds the claims and where filing is heading
21.6% concentration at the top. The five leading assignees account for 629 of 2,909 records in scope, a narrower base than the long tail of single- and few-filing entrants below them. Filings ran 147 in 2017 and peaked at 179 in 2018. Complete-year data then shows a decline from 143 filings in 2021 to 92 in 2024, a -36% move — the clearest signal available once the still-filling-in 2025-2026 years are set aside.
- 1THE RGT UNIV OF MICHIGAN5.4%
- 2THE TRUSTEES OF PRINCETON UNIV5.2%
- 3OXFORD PHOTOVOLTAICS LTD5.1%
- 4UNIV OF SOUTHERN CALIFORNIA3.1%
- 5SOLAERO TECHNOLOGIES CORP2.9%
See the full perovskite silicon tandem cells analysis in Eureka
- The complete ranking, not just the top five
- Every IPC branch with its share of the corpus
- The most-cited records, and where claim space is still thin
Common questions about perovskite silicon tandem cell patents
Who holds the most patents on perovskite silicon tandem cells?
The ranked leaders in this dataset are led by a single assignee with 158 records, well ahead of second place, out of a ranking of 100 companies covering 2,909 records in total. The top five assignees combined account for 629 records, 21.6% of the field, and the top ten account for 931 records, 32.0%. Recent-year momentum data shows several of these leading filers, including major university assignees, pulled back sharply in the most recent tracked year, so cumulative rank and current filing activity do not always match.
Is patent filing in perovskite silicon tandem cells still growing?
Annual filings peaked at 179 in 2018 and completed-year data shows a decline from 143 filings in 2021 to 92 in 2024, a -36% change over that span. Figures for 2025 and 2026 are still incomplete because publication typically lags filing by around 18 months, so they understate true activity and should not be read as confirming a slowdown. The most reliable comparison is between complete years, which does show a real pullback from the 2018 peak.
What patent classes cover perovskite silicon tandem cell technology?
H01L (semiconductor devices) appears in 77.8% of the 2,909 records in scope and H10K (organic semiconductors) in 48.1%, making these the dominant classification codes. Photovoltaic-specific class H10F appears in only 4.2% of records, with coating and deposition class C23C at 3.7% and nanotechnology class B82Y at 2.8%. Because records often carry multiple IPC codes these shares add up to more than 100%, reflecting that a single tandem-cell claim typically spans device structure, materials and process together.
Disclaimer. This analysis is based on Patsnap Eureka data drawn from a limited snapshot of global patent records and is provided for general information and reference only. Patent data carries inherent limitations — recent filings are under-counted because of publication lag, counts may be on a record or family basis, classification and applicant-name data may contain errors or duplicates, and the underlying search query defines the scope shown — so the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing here is an exhaustive prior-art, novelty, freedom-to-operate or validity search, nor does it constitute legal, financial or professional advice, and it should not be relied upon as such. Verify independently and review with qualified patent and legal professionals before acting on it.
Method: Filing trend and technology composition. Derived from a Patsnap search on Perovskite Silicon Tandem Cells covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish. Every share divides by all records in scope. Data: Patsnap Eureka. See the full landscape report.