Syngas Fermentation Gas Feed Control Patents: mapping who controls the CO/H2 feed
71.2% concentration. The top 5 of 74 ranked assignees hold 306 of 430 records in scope — a field with one dominant filer and a long tail behind it. Annual filings peaked at 47 in 2017. The comparison the data supports without relying on incomplete recent years is 2021 to 2024: filings fell from 17 to 5, a -71% move over that three-year span. Treat 2025 and 2026 figures as still filling in rather than evidence of a further slowdown.
- 1LANZATECH INC80
- 2LANZATECH NZ INC71
- 3LANZATECH NEW ZEALAND LTD69
- 4SYNATA BIO INC52
- 5JUPENG BIO HK LTD34
See the full syngas fermentation gas feed control 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 this landscape
Who holds the most patents in syngas fermentation gas feed control?
One assignee leads the ranked field with 80 of the 430 records in scope, well ahead of the fifth-ranked holder at 34. The top 5 of 74 ranked assignees together account for 306 records, or 71.2% of all records in scope, so the field is concentrated rather than evenly spread. Anyone evaluating freedom to operate should check that leading portfolio first, since it spans strain, apparatus and process-control claims rather than a single narrow area.
Is syngas fermentation patent activity growing or shrinking?
Filing peaked in 2017 at 47 records and has declined since; the clearest complete-year comparison available shows filings falling from 17 in 2021 to 5 in 2024, a drop of 71%. Because publication typically lags filing by around 18 months, the 2025 and 2026 figures in any chart are still filling in and should not be read as proof of a further decline. The safest reading is that filing activity has cooled from its 2017 high rather than that it has stopped.
What technology areas are most and least claimed in this space?
Core fermentation and enzymatic-synthesis claims (IPC class C12P) appear in 94.4% of the 430 records, making them by far the most heavily claimed area, followed by bioreactor and apparatus claims (C12M, 45.1%) and microorganism/genetic-engineering claims (C12N, 33.5%). Electrolytic production of compounds (C25B), animal feed uses (A23K) and gas separation apparatus (B01D) each sit at single-digit shares of records, indicating thinner claim coverage in those adjacent areas. Because records can carry multiple classifications, these percentages overlap rather than summing 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 Syngas Fermentation Gas Feed Control 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.