Log Structured Storage Engines Patents: Leaders & Trends 2026
Log structured storage engine patents: who holds the ground and where it is still open
42.1% of all 810 records sit with just five assignees, so most compaction and bloom-filter claim space is already staked by a small group. Annual filings rose from 56 in 2017 to a peak of 126 in 2019, then settled into a range that still grew 40% from 2021 (53) to 2024 (74) — the last year the dataset treats as complete. 2026 shows only 8 filings so far, which reflects the publication lag rather than a real drop in activity.
- 1NETAPP INC126
- 2ADVANCED NEW TECHNOLOGIES CO LTD63
- 3MICRON TECHNOLOGY INC53
- 4PURE STORAGE INC51
- 5SAMSUNG ELECTRONICS CO LTD48
See the full log structured storage engines 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 on log structured merge storage engines?
The ranking in this dataset covers 810 records across 100 ranked companies, with a single leading assignee holding 126 records — well ahead of fifth place at 48 and tenth place at 19. The top five assignees combined hold 42.1% of all 810 records, and the top ten hold 59.5%. That steep drop-off after the leader means the field has one clearly dominant filer rather than a tight group of equally sized competitors.
Is patent filing activity in this space growing or slowing down?
Filings grew 40% from 53 in 2021 to 74 in 2024, which is the most recent year this dataset treats as complete. The apparent drop in 2025 and 2026 (down to 8 by 2026) is a publication-lag artefact — patent applications typically publish around 18 months after filing, so recent years always look artificially low until later data arrives. Based on the 2021-2024 trend, underlying activity was still rising, not cooling.
What patent classes cover bloom filters and compaction strategies?
In this dataset, 95.4% of the 810 records carry a G06F classification (electric digital data processing), reflecting that compaction and bloom-filter logic is predominantly claimed as software/data-processing subject matter. Smaller shares fall under H04L (digital transmission, 6.7%), G11C (static and digital memories, 4.0%) and H03M (coding and code conversion, 2.2%). Because a single record can carry multiple IPC classes, these shares add up to more than 100% and should not be summed.
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 Log Structured Storage Engines 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.