Reflective and Radiative Cooling Coatings Patents: Leaders & Gaps 2026
Reflective and Radiative Cooling Coating Patents: Who Holds the Formulation Claims
One filer dominates. the leading assignee accounts for 21 of the 33 records in scope, with a long tail of single- and double-digit filers behind it. Filings built from zero in 2017 to a peak of 15 published records in 2023, the strongest year in the dataset so far. Growth rate is not computable from this window because too few complete years remain once publication lag is accounted for, but the shape shows a field that only became patent-active in the last decade.
- 1SAINT GOBAIN WEBER FRANCE21
- 2CHEMETALL GMBH4
- 3INDIAN INSTITUTE OF TECHNOLOGY BOMBAY2
- 4EVEREST INDS2
- 5HINDUSTAN PETROLEUM CORP LTD1
See the full reflective and radiative cooling 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 on this landscape
Who holds the most patents in reflective and radiative cooling coatings?
Within this dataset of 33 records, one assignee, Saint-Gobain Weber France, holds the leading position with 21 records, well ahead of the next-ranked filers. The remaining ten ranked organisations, including chemical suppliers, an Indian technical institute, a petroleum company and several individual inventors, each hold a much smaller number of records. This concentration means freedom-to-operate work in polyurethane-based solar-reflective coatings should start with that leader’s claim scope.
What chemistry dominates cool roof coating patents?
Coating and pigment-related IPC classes dominate: C09D (coatings, paints and inks) appears in 78.8% of the 33 records and C08G (condensation polymers) in 60.6%, compared with 45.5% for E04D, the roofing-specific class. This shows that the claim activity centers on the coating formulation itself, particularly polyurethane and pigment chemistry, rather than on roofing structures or application hardware. A new entrant is statistically more likely to encounter a formulation claim than a structural roofing claim.
When did patent filing in this field peak?
Filings in this dataset rose from zero recorded publications in 2017 to a peak of 15 published records in 2023, the highest year observed to date. Because patent publication typically lags the underlying filing date by roughly 18 months, the years closest to the 2026 data cut-off understate true activity and should not be read as a slowdown. A clearer picture of the 2024-2025 filing years will only emerge as more applications publish.
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 Reflective and Radiative Cooling 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.