Yeast Chassis Promoter Engineering Patents: Leaders & Trends 2026
Yeast chassis promoter engineering patents: who holds the claim space and where it is still open
Concentrated at the top. The five most active assignees together hold 33.3% of all 7,170 records in scope, and the leading filer alone accounts for 1,348 — but the ranking still runs 100 names deep, so a long tail of smaller filers sits behind them. Annual filings climbed from 121 in 2017 to a peak of 210 in 2018, then declined toward 115 by 2024 — a 31% drop from the 2021 level of 167. The 2025 and 2026 figures in the raw count are lower still, but that reflects publication lag rather than a real collapse in filing activity; readers should not treat the tail of the chart as the current run rate.
- 1HUMAN GENOME SCI INC18.8%
- 2RUBEN STEVEN M4.8%
- 3ROSEN CRAIG A4.7%
- 4BRISTOL MYERS SQUIBB CO2.6%
- 5GENENTECH INC2.5%
See the full yeast chassis promoter engineering 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 this landscape
Who holds the most patents in yeast chassis promoter engineering?
The dataset’s ranked assignee list identifies a single leading filer with 1,348 records, well ahead of the rest of the field. The top five assignees together hold 33.3% of all 7,170 records in scope, but the ranking runs 100 names deep, so the majority of records sit outside that top group. Anyone assessing freedom to operate should look at the leader’s portfolio specifically rather than treating the field as evenly distributed.
Is patent filing in this area growing or slowing down?
Filings peaked at 210 in 2018 and have declined since, falling from 167 in 2021 to 115 in 2024 — a 31% drop over that span. That is the most recent period that can be read reliably, because publication lags filing by roughly 18 months and the 2025-2026 figures are still incomplete. It would be a mistake to call the field dead on the strength of the most recent one or two years alone.
What patent classes cover yeast promoter and operator engineering?
This landscape was built around three IPC classes: C12N15/81 for genetic engineering constructs, C12N1/16 for microorganism and yeast cultures, and C12Q1/68 for enzymatic and nucleic-acid measurement methods including reporter assays. Within the resulting record set, C12N subclasses appear on 91.3% of records, and C07K peptide/protein classes appear on 65.3%, showing the field leans heavily toward protein-production applications rather than pure strain engineering.
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 Yeast Chassis Promoter Engineering 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.