Ceramic Fiber Insulation Patents: Who Leads, Where the Gaps Are 2026
Ceramic Fiber and Biosoluble Insulation Wool Patents
One company holds 338 of 451 records in scope — concentration this steep leaves almost no room to file a broad composition claim in the core chemistry. Filings peaked at 29 in 2017 and had fallen to 1 by 2024, a -50% move from 2021's 2 filings to 2024's 1 — a sustained pull-back from the peak rather than a single-year dip.
- 1UNIFRAX I LLC338
- 23M INNOVATIVE PROPERTIES CO21
- 3OJI HLDG CORP8
- 4GEO2 TECHNOLOGIES INC8
- 5GLOBAL CONSULTING INC8
See the full ceramic fiber and biosoluble insulation wool 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 ceramic fiber and biosoluble insulation wool?
One assignee holds 338 of the 451 records in scope, a share far ahead of any other party in the 56-company ranking. The next four companies combine with the leader for 84.9% of all records, so the field is dominated by a small group rather than spread across many filers. Anyone assessing freedom to operate should treat that leading estate as the primary reference point.
Is patent filing in this field growing or slowing down?
Filing peaked in 2017 at 29 records and has declined since, falling from 2 filings in 2021 to 1 in 2024 — a -50% move over that span. Figures for 2025 and 2026 are still incomplete because publication typically lags filing by about 18 months, so the most recent complete read is 2024. Based on the last several complete years, this looks like a cooling filing cycle rather than a growing one.
What technology areas do these patents actually cover?
The largest share of records, 43.9% of the 451 in scope, falls under glass and enamel compositions (C03C), followed by ceramics, cement and refractories (C04B) at 25.9%. Fibre-feature classes such as chemical filament features (D01F) and nonwovens (D04H) each cover roughly 12-14% of records. Downstream application classes like exhaust treatment (F01N) are present but smaller, at 12.0%, indicating most claim activity concentrates on the fibre itself rather than its end use.
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 Ceramic Fiber and Biosoluble Insulation Wool 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.