Ball Mill Grinding Efficiency Patents: Top Companies & Trends 2026
Ball Mill Grinding Efficiency Patents: Who Files, What They Claim
Filing is thinly spread at the top. the leading assignee holds 82 records and the ranked top 5 together account for only 7.9% of the 4,111 records in scope. Filings ran from 119 in 2017 to a peak of 155 in 2018, then eased to 109 by 2021 and 63 by 2024 — a 42% decline over that three-year window. 2025 and 2026 show far lower counts (down to 10 in 2026), but that reflects publication lag rather than a real stop in filing.
- 1EI DU PONT DE NEMOURS & CO2.0%
- 2F L SMIDTH & CO AS1.8%
- 3ALCOA INC1.4%
- 4ELEMENT SIX GMBH1.3%
- 5METSO OUTOTEC FINLAND OY1.3%
See the full ball mill grinding efficiency 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 ball mill grinding efficiency patents
Who holds the most patents on ball mill grinding efficiency?
The leading assignee in this dataset holds 82 of the 4,111 records in scope, with the fifth-ranked holder at 54 and the tenth at 50. That is a gentle slope rather than a single dominant player, and the top 5 combined account for only 7.9% of all records. Practically, that means no single company has locked up the core claim space, and freedom-to-operate work needs to check a broad set of assignees rather than one or two gatekeepers.
Is patent filing in ball mill grinding technology growing or shrinking?
Filings peaked in 2018 at 155 and had fallen to 63 by 2024, a 42% decline from the 109 filed in 2021. That three-year comparison is the most recent one the data supports without running into publication lag, since records from 2025 and 2026 are still being published. Read the recent-year dip as incomplete data rather than a confirmed slowdown.
What patent classes matter most for ball mill grinding claims?
B02C, covering crushing, grinding and pulverising equipment, touches 30.9% of the 4,111 records in this corpus, making it the single densest class by a wide margin. C04B (ceramics, cement and refractories) at 14.6% and B22F (powder metallurgy) at 10.8% follow behind, reflecting how often grinding-efficiency claims are tied to specific material applications. Because records can carry multiple IPC codes, these shares overlap rather than sum to a whole.
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 Ball Mill Grinding Efficiency 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.