Ammonia Cracking Patents: Who Leads, Where the Gaps Are 2026
Ammonia Cracking for Hydrogen Release: Patents Behind the Catalyst and Separation Race
Filing nearly doubled in three years: 2021 to 2024 filings rose 56 to 111, a +98% increase, before the 2025-2026 dip that reflects publication lag rather than a real slowdown. Filings rose from 19 in 2017 to a peak of 135 in 2023, with the 2021-2024 span alone showing +98% growth (56 to 111). The 2025-2026 figures, including 8 in 2026, are partial counts still filling in under the ~18-month publication lag, not evidence of a cooling field.
- 1AIR PROD & CHEM INC85
- 2AMOGY INC37
- 3INTELLIGENT ENERGY INC32
- 4MITSUBISHI HEAVY IND LTD30
- 5HALDOR TOPSOE AS23
See the full ammonia cracking for hydrogen release 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 ammonia cracking patents
What is ammonia cracking used for in hydrogen production?
Ammonia cracking, also called ammonia decomposition, breaks ammonia (NH3) back into nitrogen and hydrogen over a catalyst, typically ruthenium or nickel-based, at elevated temperature. It matters because ammonia is far easier to transport and store than liquid or compressed hydrogen, so shipping ammonia and cracking it on-site is being pursued as a practical hydrogen-carrier route. The patent record in this space, 811 records from 2015 to 2026, concentrates heavily on catalyst formulation and reactor design rather than the shipping or storage side of the value chain.
Who are the leading patent filers in ammonia cracking technology?
The dataset’s ranked list covers 100 companies, with the leader holding 85 records against a fifth-place figure of 23 and a tenth-place figure of 20 — a steep drop after the top handful. The top 5 assignees combined account for 25.5% of all 811 records and the top 10 for 38.7%, meaning the field is concentrated at the very top but still has a long tail of active filers. Rather than one dominant company controlling the whole space, the picture is a clear leader plus a competitive cluster just behind it.
Is patent filing in ammonia cracking still growing?
Yes, based on complete-year data: filings rose from 56 in 2021 to 111 in 2024, a +98% increase, with the recorded peak year so far at 135 filings in 2023. The lower counts shown for 2025 and 2026 are an artefact of publication lag, since patent applications typically take around 18 months to publish after filing, not a genuine slowdown. Anyone using this trend for planning should treat the most recent one to two years as incomplete rather than declining.
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 Ammonia Cracking for Hydrogen Release 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.