Bauxite Residue Patents: Top Companies & Filing Trends 2026
Bauxite residue management patents: who is filing, and where the field is still open
Concentrated at the top. The five most active filers account for 87 of 271 records in scope (32.1%), with a leader on 29 filings and a long tail of single- and few-filing entrants below tenth place (5 filings). Filings rose from 5 in 2017 to a peak of 24 in 2022, then eased to 10 by 2024 — a 47% decline from 2021's 19 filings over that three-year window. 2025 and 2026 figures are still filling in as publications catch up with filing dates, so they should not be read as a continued fall.
- 1ORBITE TECHNOLOGIES INC29
- 2COMMONWEALTH SCI & IND RES ORG18
- 3FORET PLASMA LABS LLC18
- 4RED MUD ENTERPRISES LLC13
- 5AEM TECHNOLOGIES INC9
See the full bauxite residue management 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 bauxite residue patents
Who holds the most patents on bauxite residue and red mud management?
Filing in this dataset is concentrated: the leading assignee holds 29 of the 271 records in scope, more than three times the count at fifth place (9 records). Below the top ten filers, activity spreads across a long tail of roughly 100 ranked companies, most with only one or two families. This shape means a freedom-to-operate check should weight the leader’s portfolio heavily rather than treat the field as evenly distributed.
Is bauxite residue patent filing growing or slowing down?
Filings peaked at 24 in 2022 and had fallen to 10 by 2024, a 47% decline from the 19 filings recorded in 2021. Because patent publication typically lags the filing date by around 18 months, the 2025 and 2026 figures in any trend chart are still incomplete and should not be read as continued decline. The honest read is a pullback from a 2022 peak, with the most recent one to two years too thin to interpret yet.
What technology areas dominate bauxite residue patents?
Metal extraction and refining (IPC class C22B) appears in 52.4% of the 271 records in scope, the single largest technology grouping, followed by alkaline-earth and aluminium compound chemistry (C01F) at 34.3%. Ceramics and refractory reuse, separation techniques, iron production and water treatment each appear in under 20% of records. That gap indicates extraction and recovery chemistry is the most heavily claimed area, while reuse and treatment applications remain comparatively open.
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 Bauxite Residue Management 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.