Tool battery pack and platform patents: mapping who holds cross-compatibility, cell selection and fast-charge claims
One filer accounts for 558 of 676 records. the leader alone holds roughly four-fifths of the entire dataset, a concentration rarely seen even among consolidated hardware categories. Filings ran from 61 in 2017 to a peak of 87 in 2020, then eased to 49 in 2021 and 41 by 2024 — a 16% decline across that three-year window. 2025 and 2026 show fewer records only because publication typically trails filing by around 18 months; treat those last two bars as incomplete, not as evidence the field is winding down.
- 1MILWAUKEE ELECTRIC TOOL CORP558
- 2TTI MACAO COMML OFFSHORE LTD35
- 3BLACK & DECKER CORP29
- 4SCHEUCHER KARL F14
- 5INGERSOLL RAND CO8
See the full tool battery packs and platforms 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 tool battery pack patents
Who holds the most patents on cordless tool battery packs?
One assignee holds 558 of the 676 records in this dataset, an outsized share for any single company. The next four largest filers together bring the top-five total to 644 records, or 95.3% of everything in scope. Beyond that, the remaining 42 ranked companies split the last few percent, so most competitive activity worth tracking closely sits with a small handful of firms rather than a broad field of rivals.
What does a tool battery pack patent typically claim?
In this dataset the dominant claim pattern combines a cell array and voltage sensor with a processor that derives state of charge and estimates charge time, often alongside wireless telemetry of usage data such as trigger-pull counts. IPC data backs this up: H02J (power supply and grid systems) covers 33.3% of the 676 records, ahead of pure battery-chemistry claims under H01M at 23.5%. The contested ground is the power-management and charging logic around the cells, not the cell chemistry itself.
Is patent filing in tool battery platforms slowing down?
Filings peaked in 2020 at 87 records, then eased to 49 in 2021 and 41 by 2024 — a 16% decline across that three-year window, which is a real signal since 2024 is the most recent year with largely complete data. The 2025-26 figures look lower still, but publication typically trails filing by around 18 months, so those final two years understate actual filing activity and should not be read as a further decline yet.
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 Tool Battery Packs and Platforms 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.