Flow Assurance Patent Landscape 2026
BP Exploration Operating Co Ltd and Baker Hughes Co together anchor a moderately concentrated field where hydrate-inhibition chemistry dominates the technology mix. Annual filing volume has eased from its 2019 peak, and Chinese filers — led by Southwest Petroleum University and Sinopec — are increasingly active as the Western incumbents consolidate.
BP leads a moderately concentrated but maturing field
BP Exploration Operating Co Ltd ranks first among all filers, followed closely by Baker Hughes Co in second place and M I LLC in third. The top five filers account for 39% of the combined total across the hundred largest filers, signalling a moderately concentrated competitive structure rather than a monopolistic one.
A visible tier gap separates the top two incumbents from the mid-table cluster. Below the top five, patent records are spread across a long tail of oil-service companies, chemical suppliers, and academic institutions, none of which individually approaches the leaders’ position.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | BP Exploration Operating Co Ltd | 14 | |
| 2 | Baker Hughes Company | 12 | |
| 3 | M-I LLC (Schlumberger) | 7 | |
| 4 | CHINA PETROLEUM & CHEMICAL CORP | 5 | |
| 5 | Southwest Petroleum University | 4 | |
| 6 | UCL Business Ltd | 3 | |
| 7 | ChampionX USA Inc | 3 | |
| 8 | Exxon Production Research Co | 3 | |
| 9 | Akzo Nobel Chemicals International BV | 3 | |
| 10 | Dalian University of Technology | 3 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 11 | ISP Investments Inc | 2 | |
| 12 | Baker Hughes Oilfield Operations LLC | 2 | |
| 13 | Shenzhen Hongyi Marine Intelligent Equipment Co Ltd | 2 | |
| 14 | PetroChina Co Ltd | 2 | |
| 15 | Texas Tech University System | 2 | |
| 16 | Halliburton Energy Services Inc | 2 | |
| 17 | Beijing Woterput Environmental Technology Co Ltd | 2 | |
| 18 | KOREA ADVANCED INST OF SCI & TECH | 2 | |
| 19 | CHINA PETROLEUM & CHEM CO LTD OF NORTH BRANCH | 2 | |
| 20 | Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences | 2 |
BP’s and Baker Hughes’s entrenched positions in C09K (specialty materials) and C10L (fuel-related chemistry) suggest that core hydrate-inhibition IP is well occupied. Challengers seeking differentiation will need to address adjacent routes — notably pipeline-transport engineering or polymer-synthesis pathways — to avoid direct overlap.
Data for the most recent 18–24 months is subject to publication lag and will be revised upward as applications publish; interpret the latest filing years with caution. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Activity peaked in 2019; chemistry classes dominate the technology mix
The annual filing trend reveals a field that built momentum through 2019 and has since eased, while the IPC class breakdown shows a strong concentration in chemical-treatment classes with sparser coverage of physical and digital engineering branches.
Annual filing trend
Filings climbed to a peak in 2019, then settled into a lower but irregular cadence through 2022 before easing further. Years 2024–2026 are subject to publication lag and should be treated as preliminary counts, not evidence of continued decline.
↗ Hover for values · click a bar to ask EurekaTechnology composition
C09K (specialty materials for miscellaneous applications) dominates, followed by C10L (fuels and firelighters) and E21B (earth and rock drilling). F17D (pipeline transport) and C08F (addition polymers) appear at notably lower volumes, marking them as relatively under-served branches within this corpus.
↗ Hover for values · click a bar to ask EurekaHighly cited patent families surfaced by the query
Citation-heavy patent families returned by the query. Use this section as citation context, not as a curated list of the most topic-specific patents.
Polyaromatic hydrocarbon additives for hydrate inh…
Methods involving anti-agglomerant hydrate inhibitors and polyaromatic hydrocarbons for hydrate inhibition are provided. In some embodiments, the methods include introducing a hydrate inhibitor composition including an anti-agglomerant hydrate inhibitor into a fluid including (i) water and (ii) one of gas, liquid hydrocarbon, and any combination thereof… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Gas hydrate inhibition | 144 |
| 2 | Additives for hydrate inhibition in fluids gelled … | 47 |
| 3 | Hydrate inhibition | 43 |
| 4 | Hydrate inhibition | 38 |
| 5 | Hydrate inhibition | 34 |
| 6 | Hydrate inhibition | 30 |
| 7 | A method for inhibiting hydrate formation | 29 |
| 8 | Hydrate inhibition | 22 |
Ranked by total forward citations. Citation counts favour older and broadly cited patent families, and broad or adjacent patents may appear when they match the search scope. Treat this section as citation context, not as a curated list of the most topic-specific patents. Some patent titles may be shown in their original, non-English language where an accurate translation could not be guaranteed.
What the patent structure means for R&D strategy
The combination of a past-peak lifecycle, Western-incumbent concentration, and an emerging Chinese academic cohort shapes where differentiated R&D investment is most and least defensible.
Field is in a decline phase from its 2019 peak
The lifecycle evidence shows annual filings easing back from the 2019 peak, placing the field in a decline stage on a recent-window basis. Core hydrate-inhibition chemistry — the dominant technology class — appears largely claimed by the existing incumbents. New entrants are more likely to find defensible positions in adjacent technical areas than by attempting to re-occupy well-covered chemical routes.
Lifecycle: DeclineTop five hold 39% of the hundred largest filers’ combined records
The top five filers — BP Exploration Operating Co Ltd, Baker Hughes Co, M I LLC, China Petroleum & Chemical Corp, and Southwest Petroleum University — collectively account for 39% of the top-hundred filers’ combined patent records. This moderate concentration means that second-tier participants still carry meaningful portfolio weight, and the field has not consolidated to the point where entry is structurally blocked.
Moderate concentrationChampionX USA and UCL Business Ltd are the most active co-filers
The most active co-filing pair is ChampionX USA Inc (Multi-Chem Group LLC) and UCL Business Ltd, with 5 jointly filed patent records — reflecting a well-documented industry-academia link in kinetic hydrate-inhibitor development. China Petroleum & Chemical Corp and Sinopec Research Institute of Safety Engineering Co Ltd form a second, smaller co-filing pair with 1 joint record, indicating early-stage internal collaboration within the Sinopec group.
Industry–academia axisChina leads filings; US and PCT routes follow
China is the leading filing jurisdiction by patent-record count, followed by the United States and WIPO PCT. Canada and the European Patent Office appear further down the list. The China-heavy filing pattern reflects both the growing domestic R&D base at Southwest Petroleum University, Dalian University of Technology, and Sinopec, and the strategic importance of deepwater and unconventional production in Chinese national energy programs.
China-first geographyGo beyond the landscape: Eureka’s TRIZ Solution agent breaks down an R&D problem and returns patented concept solutions, each with a technical approach and cited patent & literature evidence.
| Applicant | Collaborator | Co-filings |
|---|---|---|
| ChampionX USA Inc (Multi-Chem Group LLC) | UCL Business Ltd | 5 |
| China Petroleum & Chemical Corporation (Sinopec) | Sinopec Research Institute of Safety Engineering Co Ltd | 1 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
BP and Baker Hughes lead; Southwest Petroleum University is a new entrant
The top two players are Western oil-service and operator incumbents with overlapping but distinct technology emphases. An emerging Chinese academic filer entered the ranking recently and may signal a shift in the innovation base.
BP Exploration Operating Co Ltd
BP Exploration Operating Co Ltd holds the top position with 14 patent records, concentrated in C09K 8 (specialty well-treatment materials), C10L 3 (natural gas-related fuels), and C10L 1 (liquid fuel compositions). This chemistry-heavy portfolio reflects BP’s historical dominance in thermodynamic and kinetic hydrate-inhibitor formulations. No momentum data is available in evidence for this applicant’s recent trajectory, indicating a stable rather than accelerating posture.
patent records: 14Baker Hughes Co
Baker Hughes Co ranks second with 12 patent records, emphasising C09K 8 (specialty materials), E21B 37 (well-bore cleaning and maintenance), and C10L 3. The addition of E21B distinguishes Baker Hughes from BP, covering downhole application mechanics in addition to chemical formulation. No recent-filing momentum figure is available for Baker Hughes in the evidence, suggesting a consolidating rather than expanding portfolio.
patent records: 12| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| Southwest Petroleum University | 4 | ▲ new entrant |
| China Petroleum & Chemical Corporation (Sinopec) | 2 | ▲ new entrant |
Pipeline transport and polymer synthesis are under-served adjacent branches
The two branches with the lowest filing density relative to their technical relevance to flow assurance — F17D (pipeline transport) and C08F (addition polymers) — represent areas where coverage is sparse and plausible entry paths exist for differentiated R&D.
F17D · Pipeline Transport Systems
With only 18 patent records and an 8% share among the top branches, F17D covers the physical and control-system aspects of pipeline operation — flow monitoring, pigging, pressure management — that are distinct from chemical-treatment IP. Akzo Nobel Chemicals International BV and Dalian University of Technology are among the few filers here. An entrant with capabilities in smart pipeline instrumentation or corrosion-resistant lining could occupy largely unclaimed ground, provided filings also engage the relevant process-control or sensor sub-classes.
Search this in Eureka →C08F · Addition Polymers (Vinyl etc.)
C08F accounts for 11 patent records — primarily through Southwest Petroleum University’s focus on vinyl-based kinetic hydrate inhibitors. The low incumbent density suggests that novel polymer architectures (e.g. amphiphilic block copolymers, bio-inspired anti-freeze peptide mimics) have not been extensively patented in this context. An organisation with polymer synthesis expertise could build a defensible position here, particularly if the work targets low-dosage hydrate inhibitor (LDHI) performance improvements not yet covered by the existing C09K-dominant portfolios.
Search this in Eureka →How leaders differ across technology routes
Route coverage across the main technology branches in the current evidence set.
| Player | C09K 8 · Materials for misc. applications | C10L 3 · Fuels & firelighters | E21B 37 · Earth & rock drilling (wells) | F17D 1 · Pipeline transport | C10L 1 · Fuels & firelighters |
|---|---|---|---|---|---|
| BP Exploration Operating Co Ltd | Strong · 14 | Strong · 13 | Moderate · 4 | Absent | Strong · 11 |
| Baker Hughes Company | Strong · 12 | Moderate · 6 | Strong · 9 | Absent | Absent |
| M-I LLC (Schlumberger) | Strong · 8 | Absent | Moderate · 3 | Absent | Emerging · 1 |
| UCL Business Ltd | Strong · 5 | Strong · 3 | Strong · 4 | Absent | Absent |
| ChampionX USA Inc (Multi-Chem Group LLC) | Strong · 5 | Strong · 3 | Strong · 4 | Absent | Absent |
| Akzo Nobel Chemicals International BV | Strong · 3 | Strong · 3 | Absent | Strong · 3 | Moderate · 1 |
| Exxon Production Research Co | Strong · 3 | Strong · 3 | Absent | Absent | Absent |
Frequently asked questions
The corpus contains 46 patent families in scope, spanning chemical treatment, well-bore engineering, pipeline transport, and adjacent branches.
BP Exploration Operating Co Ltd leads with 14 patent records, concentrated in specialty well-treatment materials and fuel-related chemistry classes.
The field is classified as in decline, with annual filings easing back from a peak reached in 2019. The most recent filing years are subject to publication lag and may be revised upward.
China leads by patent-record count, followed by the United States and WIPO PCT filings. Canada and the European Patent Office appear further down the jurisdiction list.
C09K (materials for miscellaneous applications, primarily well-treatment chemicals) is the dominant class, followed by C10L (fuels and firelighters) and E21B (earth and rock drilling). These three classes together cover the bulk of the hydrate-inhibition and downhole-chemistry coverage.
F17D (pipeline transport) and C08F (addition polymers) are the most sparsely covered branches with plausible technical relevance to flow assurance. G01N (material analysis and testing) and B08B (cleaning) also have low filing density within this corpus, though their coverage is more fragmentary.
Ready to map your own flow assurance landscape?
Join 18,000+ innovators using PatSnap Eureka to map any technology landscape: search 2B+ patents and papers, surface key assignees, and generate a report like this in minutes.
Disclaimer. This page is generated from PatSnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.
Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing on this page constitutes an exhaustive prior-art, novelty, freedom-to-operate, or validity search, nor does it constitute legal, financial, investment, or professional advice, and it should not be relied upon as such. Any patent, commercial, or strategic decision should be verified independently and reviewed with qualified patent, legal, and domain professionals. PatSnap makes no warranties, express or implied, as to the accuracy, completeness, or fitness for any particular purpose of the information presented.