Switchable Automotive Glazing Patents: Top Filers & Trends 2026
Switchable and Smart Automotive Glazing Patents
55.3% concentration. The top 5 of 100 ranked assignees hold 2,656 of the 4,804 records in scope — over half the field sits with a handful of filers. Filings rose from 319 in 2017 to a peak of 735 in 2020, then eased to 432 by 2021 and 295 by 2024 — a 32% decline over that three-year span. 2025 and 2026 figures are still filling in under publication lag and should not be read as a continued fall.
- 1LG ELECTRONICS INC44.3%
- 2SAMSUNG ELECTRONICS CO LTD4.3%
- 3DELL PROD LP2.3%
- 4ORIGIN RES WIRELESS INC2.3%
- 5MICROSOFT TECHNOLOGY LICENSING LLC2.1%
See the full switchable and smart automotive glazing 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 switchable and smart automotive glazing?
One assignee leads the ranked field with 2,128 of the 4,804 records in scope, well ahead of the rest of the top five, which together hold 2,656 records (55.3% of all records). The top ten extend that to 2,996 records, or 62.4% of the total. This is a concentrated field: a small number of filers hold the majority of the documented claim space, and volume drops sharply after the top ten positions.
Is patent filing in smart glazing still growing?
Filing peaked in 2020 at 735 records and has since declined to 295 in 2024, a 32% drop from the 432 records filed in 2021 — the last three years that can be treated as complete. Because publication lags filing by roughly 18 months, the lower counts shown for 2025 and 2026 are still filling in and should not be read as continued decline. The honest read is that the field has cooled from its 2020 peak but the most recent trajectory is not yet fully visible.
What technology areas dominate smart glazing patent claims?
Wireless communication networks (H04W) appear in 30.2% of the 4,804 records, followed by electric digital data processing (G06F) at 19.4% and pictorial communication (H04N) at 15.9%. Optical control and modulation (G02F), the subclass most tied to the electrochromic or particle-based switching mechanism itself, covers only 10.7% of records. This means most patent activity in this space is claimed around the glazing — in the sensors, connectivity and control logic — rather than in the switching material itself.
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 Switchable and Smart Automotive Glazing 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.