Optical Circuit Switching Patents: Who Leads, Where the Gaps Are 2026
Optical Circuit Switching in Datacenters: Patents, Leaders and Filing Trends
23.0% concentration at the top. The top 5 assignees hold 408 of 1,775 records in scope, but the ranked field runs 100 companies deep — a long tail sits behind the leaders. Filings ran from 57 in 2017 to a peak of 104 in 2020, then eased to 59 in 2021 and 46 in 2024 — a 22% decline over that three-year span. 2025 and 2026 figures are still incomplete because publication trails filing by roughly 18 months, so treat the most recent bars as a floor, not a verdict on where the field is heading.
- 1FUJITSU LTD6.1%
- 2HUAWEI TECH CO LTD5.0%
- 3WELLS FARGO BANK NA4.5%
- 4CIENA CORP3.8%
- 5GOOGLE LLC3.6%
See the full optical circuit switching in datacenters 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 on this landscape
Who holds the most patents in optical circuit switching for datacenters?
The leading assignee in this dataset holds 108 of the 1,775 records in scope, with the field tapering gradually rather than dropping off a cliff — fifth place holds 64 and tenth place holds 40. The ranked field extends to 100 companies total, so no single company or small group controls the space outright. A useful way to read this is that the top 5 combined account for 23.0% of all records, leaving the large majority spread across a long tail of filers.
Is patent filing in optical circuit switching increasing or decreasing?
Filing peaked at 104 records in 2020 and has since pulled back, with the last fully comparable years showing 59 filings in 2021 falling to 46 in 2024 — a 22% decline over that span. Note that publication typically lags filing by around 18 months, so the 2025 and 2026 figures in any chart are still incomplete and should not be read as evidence the field is still falling. The honest read is that volume has cooled from its 2020 high but the most recent trend line is not yet settled.
What technology areas dominate the patent claims in this field?
Optical elements and systems (IPC class G02B) appear in 58.8% of the 1,775 records, making it by far the most heavily claimed area, ahead of multiplex communication (H04J, 26.6%) and switching and selecting (H04Q, 26.0%). MEMS-specific claims (B81B) are comparatively rare at 5.0%. Because a single filing can carry multiple IPC classes, these percentages describe how densely each topic is claimed, not a clean split of the field into non-overlapping segments.
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 Optical Circuit Switching in Datacenters 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.