Solids Control System Integration Patents: Top Companies & Trends 2026
Solids control system integration patents: who holds the ground and where filings are heading
Concentrated at the top. The five leading assignees account for 394 of 825 records in scope (47.8%), and the ranked ten hold 67.6% between them. Filings peaked at 111 in 2017, then declined before recovering: 2021 filings stood at 13 and reached 34 by 2024, a +162% increase over that span. 2025 and 2026 figures (5 published so far in 2026) are still filling in as later publications post.
- 1NAT OILWELL VARCO LP140
- 2HALLIBURTON ENERGY SERVICES INC70
- 3NAT OILWELL DHT LP70
- 4M I LLC(US)57
- 5SCHLUMBERGER TECH CORP57
See the full solids control system integration 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
Frequently asked questions
Who holds the most patents in solids control system integration?
One assignee leads the ranked field with 140 records, well ahead of the fifth-place holder at 57 and the tenth-place holder at 28. The top five assignees combined account for 394 of the 825 records in scope, or 47.8%, and the top ten extend that to 67.6%. This is a field with a clear controlling core rather than a flat distribution across many small filers.
Is patent filing activity in solids control equipment growing or slowing?
Filings peaked at 111 in 2017 and declined afterward, but the more recent complete-year data shows renewed growth: annual filings rose from 13 in 2021 to 34 in 2024, a +162% increase over that three-year span. The 2025 and 2026 figures in the dataset are still low, but that reflects the roughly 18-month lag between filing and publication rather than an actual drop in activity. Treat any apparent decline in the final one to two years of a filing trend with caution for the same reason.
What technology areas does solids control system integration patent activity cover?
The overwhelming majority of records, 84.2% of the 825 in scope, classify under E21B, earth and rock drilling for wells, confirming this is primarily a drilling-operations field rather than a standalone separation-equipment field. Separation processes (B01D) and material analysis and testing (G01N) each cover around 13-14% of records, with smaller shares in materials, sieving, centrifuges, geophysics and control systems. Because records can carry multiple IPC classes, these shares add up to more than 100%.
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 Solids Control System Integration 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.