Photovoltaic Glass Patents: Top Companies, Trends & White Space 2026
Photovoltaic Glass and Antisoiling Coating Patents
Concentrated at the top. The five most active filers account for 54.1% of all 74 records in scope, and the ten most active for 81.1% — this is a field with a narrow set of repeat filers, not a broad crowd. Filings started from 2 in 2017, peaked at 6 in 2019, and after a dip have climbed again — 3 in 2021 to 4 in 2024, a 33% rise over that three-year window. The most recent one to two years are still filling in as publications catch up with filing dates, so treat 2025 and 2026 as partial.
- 13M INNOVATIVE PROPERTIES CO12
- 2ESSILOR INTERNATIONAL(COMPAGNIE GENERALE D OPTIQUE)9
- 3NANOGRAM CORP8
- 4DEVOS JOHN ARTHUR6
- 5BOROSIL RENEWABLES LTD5
See the full photovoltaic glass and antisoiling coatings 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 photovoltaic glass and antisoiling coating patents
Who holds the most patents in photovoltaic glass and antisoiling coatings?
The dataset’s leading assignee holds 12 of the 74 records in scope, well ahead of the fifth-ranked filer at 5 and the tenth-ranked filer at 3. The five most active assignees together account for 54.1% of all records, and the ten most active for 81.1%, meaning most of the field’s claim space is already held by a small group of repeat filers. A new entrant should expect to negotiate around these established portfolios rather than find open ground among many small filers.
What technology areas dominate photovoltaic glass coating patents?
Coating and ink formulations under IPC class C09D appear in 48.6% of the 74 records, making surface treatment chemistry the single busiest claim area. Glass and enamel compositions (C03C) follow at 41.9% and optical element and system claims (G02B) at 39.2%. Because records often carry multiple IPC codes, these figures overlap rather than sum to 100%, but the pattern is consistent: post-glass surface treatment draws more recent filing activity than the base glass substrate itself.
Is patent filing in this space growing or slowing down?
Filing activity peaked at 6 records in 2019, dipped afterward, and then climbed again from 3 records in 2021 to 4 in 2024 — a 33% increase over that three-year span. The 2025 and 2026 figures in the dataset are lower, but that reflects the roughly eighteen-month lag between filing and publication rather than an actual slowdown. Any read on the most recent one to two years should be treated as provisional until later filings finish publishing.
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 Photovoltaic Glass and Antisoiling Coatings 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.