Glass coating and functional surface patents: who holds the claim space and where it opens up
One assignee holds 105 of 287 records in scope, and the top five combined account for 75.6% of all records — this field is concentrated at the very top, not spread across a competitive middle tier. From 20 records in 2017 to a peak of 49 in 2024, filings rose in almost every window; the 2021-to-2024 span alone grew 513%. Treat 2025 and 2026 as under-counted rather than declining.
- 1CORNING INC105
- 2APPLE INC72
- 3EARLENS CORP17
- 4REBOUND THERAPEUTICS CORP12
- 5ROSS TECH INC11
See the full glass coatings and functional surfaces 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 glass coating patents
Who holds the most patents in glass coatings and functional surfaces?
One assignee leads with 105 of the 287 records in scope, well ahead of the rest of the ranked field. The top five assignees combined account for 75.6% of all records, and the top ten reach 89.2%, so the field is concentrated among a handful of established players rather than spread across many competitors. The leader's program centres on antimicrobial and chemically-strengthened glass, visible in both filing volume and the most-cited records in this corpus.
Is the glass coatings patent field growing or slowing down?
Filings grew sharply, rising 513% from 8 records in 2021 to 49 in 2024, which was the peak year in this dataset. The apparent drop in 2025 and 2026 is not a real slowdown — publication typically lags filing by about 18 months, so the most recent one to two years of any patent trend are always undercounted. Based on the 2021-2024 trajectory, the underlying filing rate was still climbing as of the last complete year.
What technology areas overlap most with glass coatings?
Glass and enamel compositions (C03C) cover 37.6% of the 287 records, making chemistry the dominant single category. Optical elements and systems (G02B) follow at 21.3%, and electric digital data processing (G06F) at 17.8%, with smaller but notable overlaps in audio transducers (H04R, 6.6%) and layered products (B32B, 7.3%). This spread shows coating claims are no longer confined to flat glass chemistry alone; they increasingly attach to camera, display and wearable device hardware.
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 Glass Coatings and Functional Surfaces 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.