Battery Pack Venting Patents: Who Leads, Where the Gaps Are 2026
Battery Pack Venting and Pressure Relief Patents
Concentrated but not locked down. the leading assignee holds 47 families and the top 5 combined account for 13.0% of all 1,265 records in scope — a real edge, not a monopoly. Annual filings rose to a peak of 70 in 2023 before easing to 45 in 2024, a -33% move from 2021's 67. 2025 and 2026 figures are still incomplete due to publication lag and should not be read as a real decline yet.
- 1MEDTRONIC CRYOCATH LP3.7%
- 2MEDTRONIC ARDIAN LUXEMBOURG SARL3.0%
- 3OBOTICS INC2.5%
- 4GOGORO2.1%
- 5CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED1.7%
See the full battery pack venting and pressure relief 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
How concentrated is the battery pack venting patent space?
It is moderately concentrated but far from locked down. The leading assignee holds 47 families out of 1,265 records in scope, and the top 5 assignees combined account for 165 families, or 13.0% of all records. The top 10 reach 20.6%. That leaves roughly four-fifths of the field held by a long tail of smaller filers, so there is real room for a new entrant to establish a position rather than needing to license around a dominant holder.
Is patent filing in this area growing or shrinking?
Filings rose to a peak of 70 in 2023, then eased to 45 in 2024 — a 33% drop from 2021’s 67. However, publication typically lags actual filing by about 18 months, so the 2025 and 2026 counts in the dataset are still incomplete and will rise as more records publish. Treat the post-2023 numbers as provisional rather than as proof the field is contracting.
Which patent classes matter most for battery pack venting designs?
F16K (valves and taps) is the largest single class at 12.9% of the 1,265 records, followed by E21B (well drilling hardware) at 11.6%, A61B (diagnosis and surgery) at 11.5%, H01M (batteries and cells) at 10.6%, and A61M (devices for body fluids) at 10.2%. The presence of well-drilling and medical-device classes alongside the battery class reflects shared valve, burst-pressure and ingress-protection mechanics rather than unrelated noise, and any FTO review should check all of them, not just H01M.
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 Battery Pack Venting and Pressure Relief 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.