HTHP Drilling Fluids Patents: Top Companies & Filing Trends 2026
High Temperature High Pressure Drilling Fluids Patents
Concentrated at the top. The top 5 assignees hold 175 of 262 records in scope (66.8%), and the top 10 hold 225 (85.9%) — this field is not open ground for a new entrant filing broad claims. Filings ran from 6 in 2017 up to a peak of 24 in 2018, then declined through the following years to 17 in 2021 and 1 in 2024 — a 94% fall over that three-year span. Because publication lags filing by roughly 18 months, the 2025 and 2026 figures are not yet complete and should not be read as confirmation the field has gone quiet; they simply have not finished arriving.
- 1HALLIBURTON ENERGY SERVICES INC75
- 2BAKER HUGHES CO35
- 3CABOT SPECIALTY FLUIDS INC25
- 4CABOT CORP24
- 5M I LLC(US)16
See the full high temperature high pressure drilling 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 on HTHP drilling fluid patents
Who holds the most patents on high temperature high pressure drilling fluids?
The dataset’s assignee ranking is led by a single company holding 75 of the 262 records in scope, well ahead of the fifth-place holder at 16 and the tenth-place holder at 8. The top 5 assignees together hold 175 records, 66.8% of the total, and the top 10 hold 225, or 85.9%. That level of concentration means a small number of established filers control most of the claim space, and any new filing strategy should start by mapping their existing portfolios rather than assuming open ground.
Is patent filing activity in HTHP drilling fluids growing or shrinking?
Filing peaked at 24 records in 2018 and has declined since, falling from 17 records in 2021 to 1 in 2024 — a 94% drop over that three-year window. This is a real pull-back in documented filing activity, not a data artefact. That said, publication typically lags filing by around 18 months, so the 2025 and 2026 counts in this dataset are still incomplete and should not yet be read as the field’s true recent trajectory.
What technology areas dominate HTHP drilling fluid patents?
Materials chemistry dominates over mechanical drilling methods: C09K (materials for miscellaneous applications) appears in 207 of 262 records, 79.0% of the total, compared with 119 records (45.4%) in E21B (earth and rock drilling wells). Smaller but distinct clusters appear in C01D (alkali-metal compounds, 11.1% of records, consistent with formate brine chemistry), C07C (8.0%) and F16N lubrication systems (5.3%). Because records often carry multiple IPC codes, these percentages overlap rather than sum to 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 High Temperature High Pressure Drilling 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.