Powder blending and segregation control patents: filing trends and who holds the ground
57.5% concentration. The top five assignees hold 172 of 299 records in scope — over half the field sits with a handful of filers. Filings rose from 2 records in 2017 to a peak of 42 in 2019, then eased; the 2021-to-2024 span — the most recent period with a complete publication cycle — shows a 30% decline from 10 to 7 records. Counts from 2025 onward will continue to fill in as publication catches up with filing.
- 1GILEAD SCIENCES INC57
- 2ADARE PHARMACEUTICALS INC42
- 3ALBIREO31
- 4TESARO INC24
- 5ELLODI PHARM LP18
See the full powder blending and segregation control 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 this landscape
Who are the leading patent holders in powder blending and segregation control?
The ranking covers 47 companies, with the leading assignee holding 57 of the 299 records in scope. The top five assignees combined account for 57.5% of all records, and the top ten account for 77.9%. Below the top ten, the field spreads into a long tail of assignees with only a handful of filings each, so competitive pressure is concentrated at the top rather than evenly spread.
Is patent filing activity in this field growing or shrinking?
Filing peaked in 2019 at 42 records and has since eased; the last three-year span that can be treated as complete, 2021 to 2024, shows a decline of 30%, from 10 filings down to 7. Counts for 2025 and 2026 are still incomplete because publication typically lags filing by around 18 months, so it is too early to call the most recent years a continued decline or a rebound.
What technology areas dominate powder blending and segregation patents?
Medicinal preparations (A61K) appear in 75.9% of the 299 records in scope, and therapeutic activity of compounds (A61P) in 28.8%, showing this landscape is anchored in pharmaceutical solid-dose formulation rather than general industrial powder handling. Equipment- and process-specific classes such as B01F mixing and stirring, G01N material analysis, and G05B control systems each cover a smaller minority of the same records, since individual records can carry multiple classes.
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 Powder Blending and Segregation Control 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.