Down the Hole Hammer Patents: Who Leads, Where the Gaps Are 2026
Down the Hole Hammer Patents: Filing Trends and the Concentrated Leader Group
69.9% concentration. The top five assignees hold 114 of the 163 records in scope — a field where claim space is already staked out at the top. Filings moved from zero in 2017 to a peak of 8 in 2022, with 2026 showing only 1 filing so far — expected, since publication typically lags filing by around 18 months and the most recent year is always understated. There are too few complete years post-lag to state a growth rate, and none is claimed here.
- 1MINCON INT36
- 2SMITH INTERNATIONAL INC30
- 3VAREL MINING & IND LLC19
- 4CATERPILLAR INC15
- 5DRILLROC PNEUMATIC PTY LTD14
See the full down the hole hammer technology 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 down the hole hammer patents
Who are the leading patent holders in down the hole hammer drilling technology?
The dataset ranks 25 companies by patent family count, with the leading assignee holding 36 of the 163 records in scope. The top five assignees combined hold 114 records, or 69.9% of the field, and the top ten hold 88.3%. This means a small group of established drilling equipment manufacturers controls most of the documented claim space, and any new entrant should expect to encounter their prior art directly.
What technology areas do down the hole hammer patents cover?
The overwhelming majority, 80.4% of the 163 records, classify under E21B, the IPC subclass for earth and rock drilling in wells. Smaller shares touch E01F (road and rail accessories), E21C (mining and quarrying), and B25D (percussive tools), each around 5% or less. Because a single patent can carry multiple IPC classes, these figures add up to more than 100%, but the pattern is clear: claims cluster tightly around core hammer drilling mechanics rather than spreading into adjacent equipment categories.
Is down the hole hammer drilling patent activity growing?
The filing trend moved from zero recorded filings in 2017 to a peak of 8 in 2022, without establishing a sustained multi-year upward trend. There are too few complete years remaining after accounting for typical 18-month publication lag to state a reliable growth rate, so none is claimed here. The most recent year, 2026, shows only 1 filing so far, which understates actual activity because later filings have not yet published.
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 Down the Hole Hammer Technology 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.