https://www.patsnap.com/resources/blog/rd-blog/optical-and-wireless-die-interconnect-patent-landscape/ · Patsnap · data cut-off 2026-07-31 · downloaded from the live page
Patent Landscape · Chiplets & Advanced Interconnect
Optical and Wireless Die Interconnect Patents: Who Leads and Where the Field Is Still Open
  • Concentrated but not closed. the top 5 assignees hold 34.1% of all 768 records in scope, and the top 10 hold 45.4% — leaving more than half the field to a long tail of single- and few-filing entrants.
  • Optical elements dominate the claim language. G02B appears in 47.4% of records, more than H01L semiconductor-device claims (29.3%) and well ahead of H04B transmission claims (19.0%).
  • Filing activity grew steadily through the last complete year. annual filings rose from 47 in 2021 to 64 in 2024, a +36% increase, before the expected 18-month publication lag thins out 2025-2026 counts.
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768
Published Records
34%
Top-5 Share of All Records
+36%
Filing Growth 2021→2024
US
Leading Jurisdiction

Filing growth compares 2021 (47 records) with 2024 (64) — a three-year span. 2024 is the most recent year we treat as complete: publication lags filing by roughly 18 months, so 2025 onwards are still filling in and any growth rate that ends there would understate the field. Top-5 share is the combined record count of the five largest assignees divided by all 768 records in scope (CR5), not by the ranked leaders only.

Published byPatsnap Research··7 min readSourced from Patsnap Eureka
Overview

What this landscape covers

This dataset tracks 768 published records at the intersection of optical interconnect, wireless die interconnect and inductive coupling link claims, filtered to documents that also address a practical constraint — channel loss, alignment tolerance, power efficiency, channel data rate, coupling capacitance or integration complexity. That second filter matters: it separates general optical-communications filings from the subset actually engineering the tradeoffs that determine whether a die-to-die link works at package scale. Coverage runs from 2015 through the 2026-07-31 cut-off, with publication lag meaning the most recent one to two years understate true filing volume.

The records span optical elements and systems, semiconductor device structures, general transmission, lasers, and printed-circuit assembly claims, reflecting how die interconnect work sits across optics, packaging and RF disciplines rather than inside a single IPC class.

Filing activity and technology mix, 2015-2026
  1. 1INTEL CORP97
  2. 2CIENA CORP64
  3. 3MONOLITHIC 3D INC46
  4. 4CALIFORNIA INST OF TECH29
  5. 5MASSACHUSETTS INST OF TECH26
  6. 6TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)21
  7. 7NATIONAL UNIVERSITY OF SINGAPORE17
  8. 8TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD17
  9. 9CISCO TECHNOLOGY INC17
  10. 10NANYANG TECH UNIV15
Source: Patsnap Eureka. Assignee ranking and totals. Derived from a Patsnap search on Optical and Wireless Die Interconnect covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP

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The Numbers

Filing trend and technology composition

Two views of the same 768 records: how filing volume moved year over year, and how the claim language splits across IPC subclasses.

Filings climbed into 2024 before the reporting lag sets in

Annual filings moved from 34 in 2017 to a peak of 64 in 2024, including a +36% rise from 47 in 2021 to that 2024 peak. The 2025 and 2026 figures (down to 3 in the partial latest year) reflect publication lag rather than an actual slowdown in filing.

Filings climbed into 2024 before the reporting lag sets in020406080342017201820192020202120222023642024202532026Most recent year is partial — publication lag means later filings are not yet visible.

Optical elements lead, but no single class dominates the field

G02B (optical elements & systems) appears in 47.4% of the 768 records, ahead of H01L semiconductor devices at 29.3% and H04B transmission at 19.0%. Because records can carry multiple IPC codes, these shares sum past 100% — the overlap itself shows how tightly optical, semiconductor and RF claims are intertwined in this space.

Optical elements lead, but no single class dominates the fieldG02B · Optical elements & systems36447.4%H01L · Semiconductor devices22529.3%H04B · Transmission (general)14619.0%H01S · Lasers & stimulated emission719.2%H10W577.4%H05K · Printed circuits & assemblies557.2%G02F · Optical control & modulation405.2%G06F · Electric digital data processi…384.9%Other48563.2%

Shares are the percentage of the 768 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.

Source: Patsnap Eureka. Filing trend and technology composition. Derived from a Patsnap search on Optical and Wireless Die Interconnect covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.

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Key Patents

Representative and most-cited filings

Representative Filing
US10732366B22020-08-04

US10732366B2 — Optical interconnect device including a multi-fiber connector and an edge coupled connector

WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT

An optical interconnect device may include a multi-fiber connector at a first end of the optical interconnect device. The optical interconnect device may include an edge coupled connector at a second end of the optical interconnect device. The optical interconnect device may include a plurality of optical fibers disposed inside the multi-fiber connector and the edge coupled connector to optically couple the multi-fiber connector to the edge coupled connector, wherein the multi-fiber connector and the edge coupled connector rigidly interconnect to structurally support the optical interconnect device.Filed as a structural connector claim — the rigid interconnection between the multi-fiber and edge-coupled ends is the mechanical detail worth checking against any new coupler design.

US10732366B2 — patent drawing 1US10732366B2 — patent drawing 2
View full record
Most-cited records in the searched corpus
#Publication no.Patent titleCitations
1US9432298B1System, method, and computer program product for improving memory systems1,426
2US6355501B1Three-dimensional chip stacking assembly823
3US6967347B2Terahertz interconnect system and applications285
4US20050176174A1Methodof making an integrated circuit269
5US5631988AParallel optical interconnect228
6US8213751B1Electronic-integration compatible photonic integrated circuit and method for fabricating electronic-integrati…220
7US5093879AElectro-optical connectors220
8US6822326B2Wafer bonding hermetic encapsulation181
9US20060038168A1Terahertz interconnect system and applications176
10US20050285541A1Electron beam RF amplifier and emitter172

Citation counts favour older filings that have had more time to accumulate citations; treat them as a signal of influence within this corpus, not of current technical importance.

Each row carries its publication number; clicking a row searches Eureka by that number.

Source: Patsnap Eureka. Citation counts and representative records. Derived from a Patsnap search on Optical and Wireless Die Interconnect covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
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Insights

What the data means for a filing decision

Three patterns worth acting on before drafting claims or scoping freedom-to-operate in this space.

Concentration
34.1% of 768
held by top 5 assignees

The top of the field is dense, the rest is open

With the top 5 assignees holding 34.1% of all 768 records and the top 10 holding 45.4%, more than half of the corpus sits with entities outside the ranked leaders. That is room for a new entrant to build a defensible position without immediately colliding with an incumbent's core claims.

Based on the 768-record assignee ranking
Technology mix
47.4% G02B
vs 9.2% H01S

Optical elements crowd the claim space; lasers less so

G02B optical-element claims cover nearly half the corpus while H01S laser and stimulated-emission claims sit at just 9.2%. A drafting strategy anchored in laser-source integration, rather than generic optical coupling, faces a thinner prior-art base.

IPC subclass shares, 768-record base
Momentum
+36%
filings, 2021 to 2024

Growth is real, but 2025-2026 counts are not yet the story

Filing volume rose 36% from 47 in 2021 to 64 in 2024, the last year that can be read as complete. The sharp drop shown for 2025 and 2026 reflects the roughly 18-month publication lag, not a cooling of activity.

Filing trend, 2021-2024
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Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to optical and wireless die interconnect, with the prior art for and against each one.

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Co-filing clusters
AssigneeCo-assigneeShared families
Massachusetts Institute of TechnologyNational University of Singapore16
Massachusetts Institute of TechnologyNanyang Technological University16
National University of SingaporeNanyang Technological University16
California Institute of TechnologyDartmouth College10
Novalux Inc.MOORADIAN ARAM5
California Institute of TechnologyHAJIMIRI SEYED ALI2
California Institute of TechnologyBUCKWALTER JAMES2
Massachusetts Institute of TechnologyLasertron Inc.2

Ten co-assignee pairs appear in the data, with the strongest links running between a small cluster of university research groups, each pair sharing 16 co-filed records — a sign of sustained joint research programs rather than one-off collaborations.

Source: Patsnap Eureka. Co-assignee relationships and derived observations. Derived from a Patsnap search on Optical and Wireless Die Interconnect covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
Players

Who is filing, and where activity is shifting

The ranking spans 100 companies counted by record; a handful of large filers sit alongside a long tail of academic and single-filing entrants.

Leader
97 records
top-ranked assignee

One filer sits well ahead of the field

The leading assignee holds 97 records, more than three times the fifth-place total of 26. That gap suggests a sustained, multi-year filing program rather than opportunistic filing around a single product cycle.

Assignee ranking, 768 records
Mid-field
26 → 15
fifth to tenth place

The drop-off past the leader is gradual, not a cliff

Record counts fall from 26 at fifth place to 15 at tenth, a gentler slope than the gap between first and fifth. This is a field with several credible second-tier players rather than one dominant firm and a flat tail.

Assignee ranking, positions 5-10
Momentum
+100% YoY
one assignee, latest year

Recent-year activity is thin across the board

Most tracked assignees show flat or declining latest-year counts, consistent with publication lag rather than withdrawal from the space. Only one assignee in the momentum data posted a year-over-year increase, and off a small base.

Recent-year momentum by assignee
🔍
Under-claimed branches worth a closer look
These sub-areas show lighter claim density relative to the core optical and semiconductor classes tracked above.
Laser-source integration for die-level linksInductive coupling capacitance tuningEdge-coupled connector alignment toleranceWireless die-to-die power efficiencyPrinted-circuit assembly for optical modules
Rank all filers by momentum →
Recent-year filing momentum by assignee
AssigneeRecent yearYoY
Intel Corporation2+100%
Nubis Communications0-100%
Monolithic 3D Inc.0-100%
California Institute of Technology0—
Telefonaktiebolaget LM Ericsson (publ)0—
Massachusetts Institute of Technology0—
Luxtera Inc.0—
Novalux Inc.0—
Source: Patsnap Eureka. Assignee-level momentum. Derived from a Patsnap search on Optical and Wireless Die Interconnect covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
What's Next

Where to take this analysis

The dataset points to specific next steps depending on whether the goal is freedom-to-operate, whitespace filing, or competitive tracking.

Run a freedom-to-operate check against the top 10

With 45.4% of records held by the top 10 assignees, any new filing in optical or wireless die interconnect should be checked against that concentrated set before drafting claims.

Explore assignee claims in Eureka

Scope claims around under-claimed sub-areas

Laser-source integration and inductive coupling capacitance tuning show lighter density than the core optical-element classes, and may offer cleaner claim space.

Map whitespace in Eureka

Track the leader's recent filing behaviour

Momentum data shows most assignees flat or declining in the latest year, which is expected given publication lag — but tracking the leader's filings as 2025-2026 data fills in will clarify whether its lead is widening.

Set up tracking in Eureka
Source: Patsnap Eureka. Forward-looking reading of the same dataset. Derived from a Patsnap search on Optical and Wireless Die Interconnect covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
FAQ

Common questions about this landscape

Answers are grounded in the same dataset. Derived from a Patsnap search on Optical and Wireless Die Interconnect covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP

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Disclaimer. This page is generated from Patsnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.

Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.

Nothing on this page constitutes an exhaustive prior-art, novelty, freedom-to-operate, or validity search, nor does it constitute legal, financial, investment, or professional advice, and it should not be relied upon as such. Any patent, commercial, or strategic decision should be verified independently and reviewed with qualified patent, legal, and domain professionals. Patsnap makes no warranties, express or implied, as to the accuracy, completeness, or fitness for any particular purpose of the information presented.

Machine translation. Assignee and organisation names originally recorded in Chinese, Japanese or Korean have been rendered into English by an AI translation step so that the tables stay readable. These renderings are best-effort and may not match a company's registered English name; the original name is what the underlying patent record carries, and it is what any Eureka query launched from this page uses.

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