Panoramic Roof Patents: Who Leads, Where the Gaps Are 2026
Panoramic Roof and Sunroof System Patents: Who Holds the Claim Space
47.6% concentration. The top 5 of 43 ranked assignees hold 59 of 124 records in scope — under half the field, with a long tail below them. Filings peaked at 16 in 2019, the highest single year in the window. Growth resumed after that peak: 2021 (4) to 2024 (7) is a +75% rise, and 2024 is the most recent year the trend can be read as complete — 2025 and 2026 will fill in further as publication catches up with filing, typically an 18-month lag.
- 1SILENTIUM LTD16
- 2AISIN TECHNICAL CENTER OF AMERICA INC14
- 3SEKISUI CHEMICAL CO LTD11
- 4AGP AMERICA11
- 5ASTON MARTIN LAGONDA LIMITED7
See the full panoramic roof and sunroof systems 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 panoramic roof and sunroof patents
Who are the leading patent holders in panoramic roof and sunroof systems?
The dataset ranks 43 assignees across 124 records, with a single leader holding 16 records — more than double the fifth-place count of 7. The top 5 assignees together hold 47.6% of all records in scope, and the top 10 hold 65.3%. Below that top group the field spreads thin, with many assignees holding only one or two filings, so the competitive picture is one dominant filer plus a genuine long tail rather than a small closed group.
What technical problems are most commonly patented around panoramic roofs?
IPC composition shows B60J (windows, doors and vehicle fittings) on 58.9% of the 124 records, making mechanical roof structure and hardware the dominant claim area. Acoustics (G10K, 16.9%) and layered/laminate materials (B32B, 16.1%) are the next largest, reflecting wind-noise reduction and glass-weight management as the two problems most frequently claimed alongside the base mechanism. Door and window operating gear (E05F) and digital control (G06F) appear on smaller shares, covering opening mechanisms and speed-linked or electronic control features.
Is patent filing activity in this space growing or slowing?
Filing peaked at 16 records in 2019, then activity resumed climbing from 4 filings in 2021 to 7 in 2024, a +75% increase over that span. 2024 is the most recent year that can be read as complete, because publication typically lags filing by roughly 18 months. That lag means 2025 and 2026 figures in the raw trend will understate true activity and should not be read as a slowdown.
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 Panoramic Roof and Sunroof Systems 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.