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Run your analysis now →https://www.patsnap.com/resources/blog/rd-blog/hydrogen-storage-liquid-organic-hydrogen-carrier-dehydrogenation-patent-landscape-patent-landscape/ · Patsnap · data cut-off 2026-07-31 · downloaded from the live page
Patent Landscape · Hydrogen StorageLiquid-Organic Hydrogen-Carrier Dehydrogenation Patents: Filing Trends and Leading Claimants
97
Published Records
57%
Top-5 Share of All Records
-41%
Filing Growth 2021→2024
US
Leading Jurisdiction
Filing growth compares 2021 (17 records) with 2024 (10) — a three-year span. 2024 is the most recent year we treat as complete: publication lags filing by roughly 18 months, so 2025 onwards are still filling in and any growth rate that ends there would understate the field. Top-5 share is the combined record count of the five largest assignees divided by all 97 records in scope (CR5), not by the ranked leaders only.
Published byPatsnap Research··7 min readSourced from Patsnap Eureka
Overview
What this landscape covers
Liquid-organic hydrogen carriers (LOHCs) store hydrogen by chemically binding it to a liquid molecule and releasing it later through catalytic dehydrogenation. This landscape covers 97 published records filed between 2015 and mid-2026 that claim dehydrogenation reactors, catalyst structures, carrier chemistries or the storage systems built around them. The scope is defined by a search combining LOHC/carrier dehydrogenation terms with hydrogen storage or containment terms, so it captures the release step specifically rather than hydrogen storage generally.
Because publication lags filing by roughly 18 months, the 2025 and 2026 figures in any trend view are still filling in and should not be read as a slowdown. The most recent complete year for growth comparisons is 2024.
Filing activity and technology mix, 2015 to date
Source: Patsnap Eureka. Assignee ranking and totals. Derived from a Patsnap search on Hydrogen Storage — Liquid-Organic Hydrogen-Carrier Dehydrogenation Patent Landscape covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
The Data
Filing trend and technology composition
Two views of the same 97-record dataset: how filing activity has moved year over year, and which IPC subclasses the claims actually sit in.
Filing trend, 2017-2026
Filings rose from a standing start in 2017 to a peak of 24 in 2020, then declined; the 2021-to-2024 span shows a 41% drop (17 to 10), the last comparison period unaffected by publication lag. Years after 2024 will keep revising upward as later publications land.
IPC subclass composition
C01B (non-metallic elements and inorganic compounds) appears on 60.8% of the 97 records and B01J (catalysis) on 48.5%, confirming that most claims are about the chemistry and catalyst of release rather than the vessel. F17C (pressure vessels) and H01M (batteries and fuel cells) each cover 24.7%, marking the downstream storage and power-conversion side. Aircraft-specific classes B64C and B64D sit at 5.2% each — a small but present aviation-hydrogen thread. Shares add to more than 100% because records carry multiple classes.
Shares are the percentage of the 97 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Source: Patsnap Eureka. Filing trend and technology composition. Derived from a Patsnap search on Hydrogen Storage — Liquid-Organic Hydrogen-Carrier Dehydrogenation Patent Landscape covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.
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Most-cited records and a representative claim
Representative Filing
Catalyst structure for LOHC dehydrogenation reactor
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Provided is a catalyst structure for a liquid organic hydrogen carrier (LOHC) dehydrogenation reactor, including a support, a plurality of channels formed on the support so that the LOHC may flow through, and an LOHC dehydrogenation catalyst coated on the inner channel surfaces and in contact with the LOHC to carry out dehydrogenation. Hydrogen gas generated from the reaction is discharged along the channels, increasing the contact area between the LOHC and the catalyst.Filed by Korea Advanced Institute of Science and Technology, published 2022-09-29 as US20220305469A1.
Highest-citation records in the corpus
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20090246575A1 | Hydrogen storage material and related system | 40 |
| 2 | US20160214858A1 | Multi-zone dehydrogenation reactor and ballasting system for storage and delivery of hydrogen | 35 |
| 3 | US20130142726A1 | Process For The Storage Delivery Of Hydrogen Using Catalyst | 29 |
| 4 | US20220250762A1 | vehicle | 26 |
| 5 | US20230001377A1 | Utralight hydrogen production reactor comprising high-efficiency composite | 20 |
| 6 | US7901491B2 | Hydrogen storage material and related system | 14 |
| 7 | US20220115682A1 | Carbon-neutral process for generating electricity | 13 |
| 8 | US20220349527A1 | Hydrogen storage device | 10 |
| 9 | US20210119237A1 | Polymer electrolyte membrane for medium and high temperature, preparation method thereof and high temperature… | 10 |
| 10 | WO2012014225A2 | An improved process for the storage delivery of hydrogen using catalyst | 10 |
Citation counts inside this corpus favour older filings that have had more time to accumulate citations — they signal influence on the field, not current commercial relevance.
Each row carries its publication number; clicking a row searches Eureka by that number.
Source: Patsnap Eureka. Citation counts and representative records. Derived from a Patsnap search on Hydrogen Storage — Liquid-Organic Hydrogen-Carrier Dehydrogenation Patent Landscape covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
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What the numbers mean for a filing decision
Three read-outs from the dataset that matter more than the raw counts on their own.
Concentration
56.7% / top 5
share of all 97 records
The top of the field is tight, the rest is thin
Five assignees hold 55 of the 97 records in scope, with the leader alone contributing 15. Below tenth place — held with just 3 records — filing drops off into single-digit and single-filing entrants, which is where freedom-to-operate is easiest to establish.
Based on the 35-company assignee ranking.
Trajectory
-41%, 2021→2024
filings, last complete comparison
Activity has cooled from its 2020 peak
24 records published in 2020 remains the high point of the series. The decline to 10 in 2024 is real, but 2025-2026 figures are still incomplete due to publication lag and should not be added to the trend line yet.
2024 is the most recent year treated as complete.
Claim geography
60.8% in C01B
of 97 records
Most claims protect chemistry, not hardware
C01B and B01J together cover the carrier chemistry and catalytic mechanism side of the field, while F17C and H01M cover the storage vessel and downstream power conversion side at roughly a quarter of records each. Reactor and system integration claims are comparatively less crowded.
Shares exceed 100% combined because records carry multiple IPC classes.
Collaboration
9 co-assignee pairs
across the dataset
Co-filing is rare and clustered
Only 9 co-assignee pairs appear in the dataset, and the strongest pairs recur at just 4 shared records each. Most assignees file alone, which suggests LOHC dehydrogenation IP has developed largely inside single organisations rather than through joint ventures.
Strongest pairs tied at 4 shared records.
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Source: Patsnap Eureka. Co-assignee relationships and derived observations. Derived from a Patsnap search on Hydrogen Storage — Liquid-Organic Hydrogen-Carrier Dehydrogenation Patent Landscape covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
What's Next
Where to take this analysis
The landscape points to a concentrated top tier and a chemistry-heavy claim map — the next step is usually to test a specific filing idea against it.
Check freedom-to-operate before drafting
Run a candidate claim against the leader's portfolio and the top-10 group's 78.4% share of records before committing drafting resources to core dehydrogenation chemistry.
Explore in EurekaTrack the aviation and fuel-cell overlap
B64C, B64D, C25B and H01M all sit under 25% of records — these overlaps with aircraft and fuel-cell claims are thinner than the core chemistry and worth monitoring for new entrants.
Explore in EurekaWatch for the 2025-2026 correction
Current filing counts for 2025 and 2026 will rise as publication catches up; revisit the trend once those years are closer to complete before concluding the field has slowed.
Explore in EurekaSource: Patsnap Eureka. Forward-looking reading of the same dataset. Derived from a Patsnap search on Hydrogen Storage — Liquid-Organic Hydrogen-Carrier Dehydrogenation Patent Landscape covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
FAQ
Common questions on LOHC dehydrogenation patents
One assignee leads the field with 15 of the 97 records in scope, well ahead of the fifth-ranked filer at 6. The ranking covers 35 companies total, and concentration is heavy at the top: the five leading assignees together hold 56.7% of all records. Below the top ten, filing counts drop to single digits and single filings, indicating a long tail of smaller entrants rather than a crowded second tier.
Filing peaked in 2020 at 24 records and has since declined, with the last fully comparable period (2021 to 2024) showing a 41% drop from 17 to 10 filings. However, because publication typically lags actual filing by around 18 months, the 2025 and 2026 counts are still incomplete and will rise as more applications publish. Treat any apparent slowdown in the most recent one to two years with caution until later data fills in.
The chemistry side dominates: C01B (non-metallic elements and inorganic compounds) appears on 60.8% of the 97 records and B01J (catalysis) on 48.5%, meaning most claims target the carrier chemistry and catalytic mechanism rather than the hardware around it. Storage vessels (F17C) and battery/fuel-cell integration (H01M) each cover about a quarter of records. Aircraft-specific classes are present but small, each under 6% of records.
US20220305469A1, filed by Korea Advanced Institute of Science and Technology and published 2022-09-29, claims a catalyst structure for an LOHC dehydrogenation reactor: a support with channels through which the carrier liquid flows, coated internally with a dehydrogenation catalyst, arranged so the generated hydrogen gas is discharged along the channels to increase catalyst-carrier contact area. It is a reactor-internal geometry and coating claim rather than a claim over the carrier chemistry itself, so it constrains channel-and-coating reactor designs specifically rather than LOHC dehydrogenation broadly.
The clearest gaps sit in branches with comparatively low record counts relative to the core chemistry claims: aviation-specific carrier tank integration, electrolytic co-production pathways overlapping with C25B, and acyclic carbocyclic carrier variants under C07C, each present in under 10% of the 97 records. These areas have active filings but far less density than the C01B and B01J core, making them more open for a well-drafted first claim. Co-filing is also rare across the dataset, with only 9 co-assignee pairs found, suggesting collaborative filings are themselves an underused route.
Answers are grounded in the same dataset. Derived from a Patsnap search on Hydrogen Storage — Liquid-Organic Hydrogen-Carrier Dehydrogenation Patent Landscape covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
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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.
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.
Machine translation. Assignee and organisation names originally recorded in Chinese, Japanese or Korean have been rendered into English by an AI translation step so that the tables stay readable. These renderings are best-effort and may not match a company's registered English name; the original name is what the underlying patent record carries, and it is what any Eureka query launched from this page uses.