Sand Control Patents: Who Leads, Where the Gaps Are 2026
Sand Control and Gravel Packing Patents: Concentration, Momentum and the Open Ground
71.1% of all filings sit with five companies. 2,438 of the 3,430 records in scope belong to the top five assignees, with the leader alone holding 855 — this is a field defined by a handful of incumbents, not a fragmented one. Annual filings rose from 25 in 2017 to a peak of 118 in 2018, then eased. The 2021-to-2024 span — the last year with a complete count — shows a decline from 73 to 60 filings, an 18% drop. Treat 2025 and 2026 figures as provisional; they will revise upward as publications catch up.
- 1HALLIBURTON ENERGY SERVICES INC855
- 2WEATHERFORD TECHNOLOGY HOLDINGS LLC659
- 3EXXONMOBIL UPSTREAM RESEARCH COMPANY(US)329
- 4SCHLUMBERGER TECH CORP307
- 5SCHLUMBERGER HLDG LTD288
See the full sand control and gravel packing 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 sand control and gravel packing patents
Who holds the most patents in sand control and gravel packing?
One assignee leads the field with 855 of the 3,430 records in scope, and the top five companies together hold 71.1% of all filings. This level of concentration means the leaderboard is dominated by a small number of oilfield services incumbents rather than a broad field of independent filers. Any competitive analysis in this space should start with those top five before looking at the long tail of smaller filers.
Is patent filing activity in sand control increasing or slowing down?
Filings peaked in 2018 at 118 for the year, and the most recent complete comparison — 2021 at 73 filings versus 2024 at 60 — shows an 18% decline. That is a real pull-back from peak activity, not a collapse. Figures for 2025 and 2026 are still incomplete because publication typically lags filing by around 18 months, so it is too early to call the current trajectory.
What technology areas dominate sand control and gravel packing patents?
The overwhelming majority of records, 91.4% of 3,430, classify under E21B, the IPC subclass for earth and rock drilling in wells — covering screens, shunt tubes and related completion hardware. Materials science (C09K) accounts for 6.7%, with much smaller overlaps into geophysics, pipe fittings, separation processes, water supply and implant-adjacent classes. The narrowness of this spread suggests most patent activity is mechanical and materials-focused rather than spanning into adjacent domains.
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 Sand Control and Gravel Packing 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.