Radiotherapy Planning System Patents: Top Companies & Trends 2026
Radiotherapy Treatment Planning System Patents: Who Leads and Where the Filing Has Cooled
Filing has fallen sharply since its peak. from 166 records in 2021 to 60 in 2024, a 64% drop over that three-year span, after publication lag is accounted for. Filings rose to a peak of 166 in 2021, then declined to 60 by 2024 — a 64% fall over that three-year window. 2025 and 2026 figures are still incomplete because publication typically lags filing by roughly 18 months, so the most recent bars understate actual filing activity rather than confirming a continued decline.
- 1SIEMENS HEALTHINEERS INTERNATIONAL AG114
- 2RAYSEARCH LAB96
- 3TOMOTHERAPY INC64
- 4ELEKTA AB62
- 5REFLEXION MEDICAL INC55
See the full radiotherapy treatment planning systems 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 radiotherapy treatment planning systems?
The assignee ranking covers 100 companies, with the leader holding 114 of the 1,495 records in scope. Fifth place holds 55 records and tenth place holds 30, showing a gradual taper rather than a small clique holding everything. Together the top 5 assignees account for 26.2% of all records, and the top 10 account for 39.8%, leaving a substantial long tail of smaller filers.
Is patent filing in radiotherapy treatment planning still growing?
Filing volume peaked at 166 records in 2021 and had fallen to 60 by 2024, a 64% decline over that span. That is the most reliable read available, because publication typically lags filing by roughly 18 months, so 2025 and 2026 figures in the dataset are still incomplete and should not be read as confirming or denying a continued slowdown. Based on complete years only, the field has cooled from its early-2020s peak.
What technology areas do these patents cover besides the core dose engine?
While A61N (electrotherapy and radiation therapy) covers 69.9% of the 1,495 records, a meaningful share also touches A61B diagnosis and surgery (19.8%), G16H healthcare informatics (11.1%), G01T radiation measurement (7.2%) and G06F data processing (6.9%). Because records can carry multiple classes, these figures overlap rather than sum to 100%, and they show that planning-system patents increasingly cross into software and measurement territory alongside the core radiation-therapy hardware.
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 Radiotherapy Treatment Planning Systems 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.