Hot Forming Tools and Wear Patents: Who Leads and Where Filing Is Headed
Filing nearly tripled in three years. Annual filings rose from 9 in 2021 to 25 in 2024, a 178% increase, after a quieter stretch following the 2018 peak of 46. Filings peaked at 46 in 2018, cooled to 9 by 2021, then climbed back to 25 in 2024 — a 178% rise over that three-year span. Treat 2025 and 2026 figures as provisional given publication lag.
- 1MITSUBISHI CHEM CORP17.0%
- 2MITSUBISHI PLASTICS INC9.7%
- 3LG ENERGY SOLUTION LTD4.4%
- 4PPG INDUSTRIES OHIO INC4.0%
- 53M INNOVATIVE PROPERTIES CO3.7%
See the full hot forming tools and wear 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 hot forming tool and wear patents
Who are the leading patent holders in hot forming tool and die wear technology?
The ranking of 100 assignees in this dataset shows a clear leader with 139 records, followed by a steep drop to fifth place at 30 records and tenth place at 15. The five leading assignees together hold 38.8% of all 818 records, and the top ten hold 49.6%. That leaves just over half the field distributed across many smaller filers, so leadership at the very top does not mean the field is closed to new entrants.
Is hot forming tool wear patent activity growing or slowing down?
Filings are rebuilding after a lull: annual counts fell from a 2018 peak of 46 to just 9 in 2021, then climbed back to 25 by 2024, a 178% increase over that three-year span. The 2025 and 2026 figures in the trend data are still incomplete because publication typically lags actual filing by about 18 months, so they should not be read as a decline. Based on the 2021-to-2024 trajectory, the field is in an active growth phase rather than a mature or shrinking one.
Why do battery-related patent classes show up in a hot stamping tool dataset?
H01M, the battery and cell class, accounts for 15.9% of the 818 records in this dataset even though the search was built around hot stamping tool and die wear terminology. This reflects genuine technical overlap: coating adhesion, thermal fatigue and cooling channel problems in metal-forming tools share underlying materials science with battery casing and cell-manufacturing tooling. Anyone filing in either space should check the other for adjacent claims.
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 Hot Forming Tools and Wear 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.