High Pressure Die Casting Alloys: Patents Shaping the Structural Casting Race
44.4% concentration. The top 5 assignees hold 142 of 320 records in scope — a leader with 39 filings sits well ahead of a fifth-place holder at 17. Filings rose to a peak of 17 records in 2020, then declined; 2021's 13 records fell to 5 by 2024, a 62% drop over that span. 2025 and 2026 figures are still filling in due to publication lag and should not be read as a continued decline.
- 1GM GLOBAL TECHNOLOGY OPERATIONS LLC39
- 2DEAD SEA MAGNESIUM35
- 3BRUNEL UNIVERSITY29
- 4RHEINFELDEN ALLOYS GMBH & CO KG22
- 5CAST CENT PTY LTD17
See the full high pressure die casting alloys 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 high pressure die casting alloys?
The ranked leader in this 320-record dataset holds 39 records, well ahead of the fifth-place assignee at 17. The top 5 assignees combine for 142 records, or 44.4% of all records in scope, which shows a genuinely concentrated field rather than one with dozens of equally active filers. That said, 78 companies appear in the ranking, so there is a long tail beyond the leading group worth checking for specific claim overlaps.
Is filing activity in die casting alloys growing or slowing?
Filings peaked at 17 records in 2020, then fell from 13 in 2021 to 5 in 2024, a 62% decline over that span, and 2024 is the last year with complete publication data. Figures for 2025 and 2026 are still incomplete because publication typically lags filing by about 18 months, so they should not be read as evidence of continued decline. The honest read is that the field cooled from a 2020 peak, not that it has stopped.
What technology areas dominate die casting alloy patents?
Alloy composition claims under IPC class C22C appear in 73.8% of the 320 records, making it the dominant claim category by a wide margin. Metal casting process claims (B22D) follow at 41.3%, and non-ferrous metal treatment (C22F) at 25.6%. Because a single record can carry multiple IPC codes, these percentages are each measured against the full 320-record total and are not meant to sum to 100%.
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 High Pressure Die Casting Alloys 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.