Energy-Based Vessel Sealing Patents: Who Leads, Where Gaps Are 2026
Energy-Based Vessel Sealing Patents: Concentration, Trends and White Space
80.5% concentration. The top five assignees combined hold 3,299 of the 4,096 records in scope — a field where the claim space near the core mechanism is largely occupied. Filings peaked in 2018 at 434 and the 2021-to-2024 window shows a -26% change (105 to 78). Treat 2025 and 2026 as understated rather than declining — publication lags filing by roughly 18 months, so the most recent years are still filling in.
- 1ETHICON INC939
- 2COVIDIEN AG850
- 3COVIDIEN LP689
- 4CILAG GMBH INTERNATIONAL665
- 5SHERWOOD SERVICES AG156
See the full energy-based vessel sealing 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 energy-based vessel sealing patents
Who holds the most patents in energy-based vessel sealing?
One assignee leads the ranking with 939 of the 4,096 records in scope, well ahead of fifth place at 156 and tenth place at 40. The top five assignees combined hold 3,299 records, or 80.5% of all records in scope, and the top ten hold 91.2%. This level of concentration means most freedom-to-operate work in this field should begin with the leading one or two portfolios rather than a broad sweep of the full ranking.
Is the vessel sealing patent field still growing?
Filing activity peaked in 2018 at 434 records and has since eased; the most recent complete-year comparison shows a -26% change from 105 records in 2021 to 78 in 2024. Figures for 2025 and 2026 in the dataset are understated because publication typically lags filing by around 18 months, so they should not be read as a continuation of decline. The pattern is consistent with a maturing core mechanism rather than an expanding one.
What does US9204919B2 actually cover?
US9204919B2, assigned to Covidien LP and published in December 2015, claims a vessel sealing instrument with opposing jaw members separated by an insulating layer, where a tissue-contacting seal plate has ribs extending from its reverse surface into that insulating layer. The stated purpose is reducing thermal spread during sealing. Anyone designing a jaw assembly with a similar rib-into-insulation construction for thermal management should review this claim set closely, since it sits inside the most heavily filed segment of the corpus.
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 Energy-Based Vessel Sealing 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.