Wind and Nuclear Component Forging Patents: Who Leads and Where Filing Is Heading
Filing nearly doubled in three years. records tied to ring forging and ring rolling processes grew from 14 in 2021 to 31 in 2024, a +121% rise, even as the top of the field stays open to new entrants. Annual filings rose from 22 in 2017 to a peak of 31 in 2024, with the steepest climb concentrated in 2021-2024 (+121%). Because 2025 and 2026 figures are still incomplete due to publication lag, the apparent tail-off at the end of the series should not be read as a slowdown.
- 1GUIZHOU ANDA AVIATION FORGING37
- 2HOWMET AEROSPACE INC34
- 3WESTINGHOUSE ELECTRIC CORP26
- 4EATON CORP18
- 5GUIZHOU AVIATION TECHN DEV CO LTD17
See the full wind and nuclear component forging 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
Frequently asked questions
Who holds the most patents in wind and nuclear component forging?
One assignee leads the ranked field with 37 records, well ahead of the fifth-place holder at 17 and tenth place at 13. The gap between first and second place is sharp, but from around fifth place downward the counts flatten out, meaning no single company controls the field the way the leader's headline number might suggest. The ranking covers 100 companies in total and includes both aerospace forging specialists and nuclear equipment makers among the higher-placed names.
Is patent filing in this space growing or slowing down?
Filing grew sharply in the years leading up to the most recent complete data, rising from 14 records in 2021 to 31 in 2024 — a 121% increase over three years. The apparent drop in 2025 and 2026 is a publication-lag artefact, not a real slowdown: patent publication typically trails filing by around 18 months, so the last one to two years in any trend chart are always undercounted. Based on the confirmed 2021-2024 trajectory, the field was accelerating, not cooling, at the point the data was cut off.
Which patent classes cover ring forging and ring rolling technology?
Forging and hammering (B21J) and rolling of metal articles (B21H) are the two largest classes, covering 31.6% and 29.6% of the 500 records respectively. Nuclear reactors (G21C) appears in 19.0% of records, forged metal products (B21K) in 17.4%, and material analysis and testing (G01N) in 10.2%. Because a single record can carry several IPC codes, these shares add up to more than 100% and should not be read as mutually exclusive slices of a pie.
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 Wind and Nuclear Component Forging 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.