Capsid Engineering Patents: Who Leads, Where the Gaps Are 2026
Capsid Engineering and Tropism Patents: Filing Trends and Who Leads
33.0% of all 2,415 records sit with just five assignees, while the ranked leaders' list runs a full 100 companies deep — a concentrated top with a long tail behind it. Annual filings ran from 103 in 2017 up to a peak of 273 in 2022, then held broadly steady into the most recently complete year: 250 in 2021 versus 238 in 2024, a -5% move over that span. 2025 and 2026 counts are still filling in as publications catch up with filing dates, so they should not be read as a decline.
- 14D MOLECULAR THERAPEUTICS INC174
- 2FLAGSHIP PIONEERING INNOVATIONS VI LLC163
- 3OXFORD BIOMEDICA (UK) LTD163
- 4VOYAGER THERAPEUTICS INC157
- 5THE BROAD INST INC139
See the full capsid engineering and tropism 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 capsid engineering patents
How many capsid engineering and tropism patent families exist?
The dataset used for this landscape contains 2,415 published records spanning 2015 through the 2026 data cut-off, all matched against terms covering capsid engineering, tissue tropism, directed-evolution libraries, and related manufacturability and receptor-usage language. This figure counts patent families rather than raw document counts, which gives a fairer picture of distinct inventions than counting every continuation or foreign-filed equivalent separately. Because publication lags filing by roughly 18 months, the true count for 2025 and 2026 filings will rise as those applications publish.
Who holds the most capsid engineering patents?
One assignee leads the ranked list with 174 records, well ahead of the fifth-placed company at 139, though the gap narrows quickly further down the ranking. The top five assignees combined hold 33.0% of all 2,415 records in scope, and the top ten hold 54.4% — a field with a concentrated top tier but a long tail of active filers behind it. The full ranking covers 100 companies, so a single-figure ‘leader’ does not capture the breadth of activity in this space.
Is capsid engineering patent filing activity growing or slowing?
Filing peaked at 273 records in 2022 and has since settled: 2021 recorded 250 filings versus 238 in 2024, a modest -5% change across that span, which reads as a plateau rather than a decline. Figures for 2025 and 2026 appear lower still, but that reflects the roughly 18-month lag between filing and publication rather than an actual drop in research investment. Anyone assessing momentum in this field should treat 2024 as the last fully reliable year in the trend.
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 Capsid Engineering and Tropism 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.