Catalyst Testing & Characterization Patent Landscape 2026
The catalyst testing and characterization space is highly concentrated, with BASF Mobile Emissions Catalysts LLC holding the largest single position among the top hundred filers and the top five applicants together accounting for 38% of their combined total. Annual filing volume has eased substantially from its 2020 peak, signaling a mature, declining phase rather than an expanding frontier.
BASF dominates a concentrated, specialist field
BASF Mobile Emissions Catalysts LLC leads the applicant ranking with 62 patent records, followed by Engelhard Corp at 44 and Lummus Technology Inc at 22. The top five filers collectively represent 38% of the hundred largest filers’ combined total, indicating a tightly held competitive core.
A pronounced tier gap exists between the top two players and the rest of the field: BASF Mobile Emissions Catalysts LLC and Engelhard Corp together hold substantially more records than any individual challenger. The third-ranked Lummus Technology Inc and the co-ranked ABB Lummus Global Inc and Cormetech Inc sit at roughly one-third of the leader’s volume.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | BASF Mobile Emissions Catalysts LLC | 62 | |
| 2 | Engelhard Corporation | 44 | |
| 3 | Lummus Technology Inc | 22 | |
| 4 | ABB Lummus Global Inc | 17 | |
| 5 | Cormetech Inc | 17 | |
| 6 | Huntsman Petrochemical LLC | 15 | |
| 7 | BASF Catalysts LLC | 14 | |
| 8 | Monsanto Technology LLC | 12 | |
| 9 | UOP LLC | 10 | |
| 10 | Johnson Matthey PLC | 10 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 11 | Xiangtan University | 9 | |
| 12 | French National Centre for Scientific Research (CNRS) | 8 | |
| 13 | Blackleaf | 6 | |
| 14 | Venator Germany GmbH | 6 | |
| 15 | Nikki Universal Co Ltd | 6 | |
| 16 | SABIC Global Technologies BV | 6 | |
| 17 | CHINA PETROLEUM & CHEMICAL CORP | 6 | |
| 18 | Tufts University | 6 | |
| 19 | Institute of Chemical Technology | 6 | |
| 20 | Heesung Catalysts Corp | 6 |
The leaders’ positions reflect deep specialization in automotive emissions catalysis and refining catalysis. Their dominance implies high barriers to displacing them in core B01J (catalysis) and F01N (exhaust treatment) branches, but leaves room for challengers in adjacent technical areas.
Filing counts for 2025 and 2026 are subject to publication lag and are likely under-counted; the apparent dip in those years should not be interpreted as an acceleration of the decline trend beyond what is already observed through 2023.
Activity peaked in 2020; emissions and separation dominate the technology mix
The filing trend chart shows a volatile but generally declining trajectory after the 2020 surge, while the technology composition chart reveals that catalysis process patents (B01J) and separation processes (B01D) together account for the dominant share of IPC coverage.
Annual filing trend
Annual filings rose sharply to a peak of 46 records in 2020, then fell back to single digits in 2022 before partially recovering in 2023. The 2025 and 2026 data points are subject to publication lag and will increase as pending applications publish; they should not be read as a continuation of decline.
↗ Hover for values · click a bar to ask EurekaTechnology composition
B01J (chemical and physical processes and catalysis) is by far the largest branch, reflecting the core focus on catalyst structure and preparation. B01D (separation processes) and C07C (acyclic and carbocyclic compounds) are the next largest, signaling strong overlap with exhaust-gas treatment and organic synthesis applications. F01N (exhaust silencers and treatment) confirms the automotive emissions thread running through much of the 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.
Oxidation catalyst and method of use
Oxidation catalyst compositions include a catalytic material having a BET surface area of at least about 10 m2/g and consisting essentially of a combination of bulk ceria and a bulk second metal oxide which may be one or more of titania, zirconia, ceria-zirconia, silica, alumina-silica and alpha-alumina. The combination may optionally also include activated… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Oxidation catalyst with bulk ceria, a second bulk … | 241 |
| 2 | Novel zeolite composite, method for making and cat… | 216 |
| 3 | Ceria-alumina oxidation catalyst | 167 |
| 4 | Gasoline Engine Emissions Treatment Systems Having… | 141 |
| 5 | Zeolite-containing oxidation catalyst and method o… | 139 |
| 6 | Zeolite-containing oxidation catalyst and method o… | 121 |
| 7 | Reducing fischer-tropsch catalyst attrition losses… | 120 |
| 8 | Ceria-alumina oxidation catalyst | 113 |
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 investment decisions
The combination of high concentration, a declining life-cycle stage, and narrow geographic filing patterns shapes where new R&D investment is most likely to find open space versus incumbent resistance.
Field in decline from a 2020 peak
The lifecycle stage is classified as Decline, with annual filings easing back from the 2020 peak of 46 records. The recent-window growth figure stands at –52%, confirming that the core of the field—emissions catalyst testing and refinery catalyst characterization—is no longer attracting significant new patent filings. Entrants should expect a mature IP environment in the dominant B01J and F01N branches, where freedom-to-operate analysis will be essential.
Lifecycle: DeclineTop five hold 38% of the leading hundred filers’ output
The top five applicants—BASF Mobile Emissions Catalysts LLC, Engelhard Corp, Lummus Technology Inc, ABB Lummus Global Inc, and Cormetech Inc—account for 38% of the hundred largest filers’ combined total. This level of concentration means that licensing or partnership with the top two incumbents may be more efficient than attempting to out-file them in core automotive emissions branches. The long tail of academic and smaller industrial filers below rank ten suggests niche entry points remain viable.
High concentrationBASF entities co-file actively; limited cross-company collaboration otherwise
The most active co-filing relationship is between BASF SE and BASF SE (parent entity, 16 joint records), reflecting intra-group filings. BASF SE and Heesung Catalysts Corp represent the next strongest dyad with 6 joint records, and BASF SE and Georgia Tech Research Corporation account for 3, indicating a targeted academic partnership for materials characterization. Cross-industry collaboration outside the BASF network is sparse in this corpus.
Intra-BASF ecosystemUS-centric filing with meaningful EPO and PCT reach
The United States leads jurisdiction coverage with 172 patent records, followed by Europe (EPO) at 86 and WIPO PCT at 69. India at 44 and Canada at 30 round out the top five, while China shows only 25 records—a relative gap given China’s scale in catalyst manufacturing. Japan appears at only 2 records, which is notably low for a major chemical and automotive nation and may represent a white-space filing opportunity for applicants targeting Asian markets.
US-dominantGo 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 |
|---|---|---|
| BASF SE | BASF SE | 16 |
| BASF SE | Heesung Catalysts Corp | 6 |
| BASF SE | Georgia Tech Research Corporation | 3 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
BASF emissions unit leads; Engelhard Corp is a close second with broader separation focus
The top two players hold substantially more patent records than any other individual applicant, but their recent momentum signals are both declining, consistent with the field’s overall contraction.
BASF Mobile Emissions Catalysts LLC
The clear leader with 62 patent records, BASF Mobile Emissions Catalysts LLC concentrates on catalyst structure (B01J 35), catalyst composition with metals (B01J 23), and exhaust treatment systems (F01N 3). Recent filing momentum is sharply negative at –96% versus the prior three-year period, consistent with the broader field decline and likely reflecting consolidation of emissions catalyst IP under the broader BASF entity structure rather than technology abandonment.
families: 62Lummus Technology Inc
Ranked third with 22 patent records, Lummus Technology Inc focuses on catalysis with metals (B01J 23), catalyst characterization (B01J 35), and acyclic hydrocarbon synthesis (C07C 2), reflecting a refining and petrochemical orientation that distinguishes it from the emissions-focused leaders. Recent momentum is –75% versus the prior period, but its refining-oriented IPC footprint positions it as the most relevant incumbent in the C10G (hydrocarbon refining) adjacent branch.
families: 22| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| BASF SE | 1 | ▼ -96% |
| Lummus Technology Inc | 3 | ▼ -75% |
Refining catalysis and heterocyclic synthesis are under-served relative to the core
Several IPC branches appear in the corpus at low share relative to their technical adjacency to the dominant B01J core, suggesting areas where new catalyst characterization work has not yet generated dense IP coverage.
C10G · Hydrocarbon oils & refining
With 47 patent records and a 4% share of the total branch coverage, hydrocarbon refining catalyst characterization is materially under-represented given the industrial scale of refinery catalyst testing. Lummus Technology Inc and Johnson Matthey PLC hold footholds here, but no single player dominates. An entrant with advanced characterization methods—such as operando spectroscopy or high-throughput catalyst screening for hydroprocessing—could establish a differentiated position in this adjacent branch.
Search this in Eureka →C07D · Heterocyclic compounds
The C07D branch (heterocyclic compounds) appears at 33 records and 3% share, a low count for a class relevant to fine-chemical and pharmaceutical catalyst testing. Huntsman Petrochemical LLC has a small presence here via C07D 307, but the branch lacks a dominant assignee. Given the growing interest in catalytic synthesis of nitrogen-containing heterocycles for agrochemical and pharmaceutical applications, this represents an under-served adjacent area with plausible technical value, though the realistic entry path depends on whether a filer’s catalyst portfolio extends into fine-chemical or specialty synthesis.
Search this in Eureka →How leaders differ by technology route across B01J, B01D, F01N, and C07C
Route coverage across the main technology branches in the current evidence set.
| Player | B01J 35 · Chemical/physical processes & catalysis | B01J 23 · Chemical/physical processes & catalysis | B01J 37 · Chemical/physical processes & catalysis | B01J 21 · Chemical/physical processes & catalysis | B01D 53 · Separation processes (filtration etc.) |
|---|---|---|---|---|---|
| BASF SE | Strong · 139 | Strong · 120 | Strong · 91 | Moderate · 57 | Strong · 96 |
| Engelhard Corporation | Strong · 48 | Strong · 46 | Strong · 32 | Absent | Strong · 47 |
| BASF SE | Strong · 35 | Strong · 23 | Moderate · 12 | Moderate · 14 | Moderate · 17 |
| ABB Lummus Global Inc | Strong · 20 | Strong · 20 | Strong · 20 | Strong · 20 | Absent |
| Lummus Technology Inc | Strong · 17 | Strong · 17 | Strong · 13 | Strong · 14 | Absent |
| BASF Catalysts LLC | Strong · 14 | Strong · 13 | Strong · 8 | Strong · 9 | Moderate · 6 |
| Monsanto Technology LLC | Strong · 12 | Strong · 11 | Strong · 10 | Strong · 11 | Absent |
Frequently asked questions
The corpus covers 216 patent families. This total forms the basis of all family-level statistics in the landscape; applicant rankings are reported separately in patent records.
BASF Mobile Emissions Catalysts LLC leads the applicant ranking with 62 patent records, ahead of Engelhard Corp at 44 and Lummus Technology Inc at 22.
No. The lifecycle stage is classified as Decline. Annual filings peaked at 46 records in 2020 and have eased significantly since, with a recent-window growth rate of -52%. The 2025 and 2026 figures are subject to publication lag and will increase, but the overall declining trajectory is established through 2023.
The United States leads with 172 patent records, followed by Europe (EPO) at 86, WIPO PCT at 69, India at 44, and Canada at 30. China holds 25 records and Japan only 2, which is notably low relative to both countries’ roles in catalyst manufacturing and automotive production.
The most-cited patent in the corpus relates to an oxidation catalyst with bulk ceria (241 citations), followed by a novel zeolite composite (216 citations) and a ceria-alumina oxidation catalyst (167 citations). All top-cited patents are concentrated in automotive emissions and oxidation catalyst characterization, consistent with the dominant F01N and B01J technical threads.
C10G (hydrocarbon oils and refining) at 47 patent records and C07D (heterocyclic compounds) at 33 records are the most prominent under-served adjacent branches relative to the dominant B01J core. F02B (internal-combustion engines) and F24C (stoves and ranges) also appear at 28 records each, suggesting limited coverage of catalyst characterization in those combustion contexts.
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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.
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