Crosslinked Gel Fracturing Fluids Patents: Leaders & White Space 2026
Crosslinked gel fracturing fluid patents: who holds the core chemistry and where filing has cooled
Concentrated at the top. The top 5 assignees hold 50.3% of all 503 records in scope, and the top 10 hold 72.6% — a small group controls most of the claimed chemistry. Filings peaked at 24 in 2017 and fell across the following years. Taking 2021 (6 filings) through 2024 (1 filing) — the last year publication has largely caught up with — activity dropped 83%. Years after 2024 are not yet fully published, since publication typically lags filing by about 18 months, so the apparent near-zero counts for 2025 and 2026 understate real activity and should not be read as the field going quiet.
- 1BAKER HUGHES CO113
- 2HALLIBURTON ENERGY SERVICES INC45
- 3SAUDI ARABIAN OIL CO36
- 4SCHLUMBERGER TECH CORP33
- 5SCHLUMBERGER TECHNOLOGY BV26
See the full crosslinked gel fracturing fluids 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 holds the most patents on crosslinked gel fracturing fluids?
Filing activity is concentrated among a small number of large oilfield-service companies. The single largest assignee in this dataset holds 113 of the 503 records in scope, and the top five assignees together hold 50.3% of all records. Beyond the top ten, who hold 72.6% combined, the remaining assignees each hold comparatively few filings, forming a long tail rather than a second cluster of major holders.
Is filing activity in this space growing or shrinking?
Filing peaked at 24 records in 2017 and has declined since. Comparing 2021 (6 filings) to 2024 (1 filing), the last year publication has largely caught up with, activity fell 83%. Because publication lags filing by roughly 18 months, the very low counts shown for 2025 and 2026 are not yet reliable evidence of the field going quiet — but the decline through 2024 is real and predates that lag.
What is a borate crosslinked fracturing fluid, and why does the crosslinker chemistry matter for patents?
A borate crosslinked fracturing fluid uses a borate ion to link polymer chains, typically guar-based, into a gel viscous enough to carry proppant at high temperature and then break cleanly once the job is finished. The chemistry matters for patent purposes because most of the claim volume in this landscape — 86.1% of the 503 records touch the C09K materials class — sits on exactly this crosslink-and-break mechanism, making it the most heavily defended part of the field.
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 Crosslinked Gel Fracturing Fluids 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.