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Free-Space Optical Comm Patents: Leaders & White Space 2026

Free-Space Optical Comm Patents: Leaders & White Space 2026
https://www.patsnap.com/resources/blog/rd-blog/free-space-optical-communication-design-optimization-patent-landscape/ · Patsnap · data cut-off 2026-07-31 · downloaded from the live page
Patent Landscape · Photonics & Optics
Free-Space Optical Communication Design Optimization Patents
  • Filing has flattened, not grown. activity peaked at 8 families in 2019 and sits below that through the most recent full year — this is a maturing claim space, not an accelerating one.
  • The US dominates the filing map. 33 of the receiving-office filings sit in the United States against 7 at the EPO and 6 via WIPO, so US prior art carries disproportionate weight in any freedom-to-operate check.
  • Influence concentrates in a handful of decades-old records. the most-cited documents date back to 1995–2009 pointing-and-tracking architectures, meaning today's filers are still designing around citation anchors set before 2010.
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55
Published Records
67%
Top-5 Share of All Records
US
Leading Jurisdiction
19
Active Filers Ranked
Published byPatsnap Research··7 min readSourced from Patsnap Eureka
Overview

What this landscape covers

This dataset tracks patent families addressing free-space optical communication design optimization — the engineering problem of holding a laser link open between two moving or vibrating terminals, covering adaptive optics correction, link margin optimization, and pointing accuracy. The search combines free-text terms for laser communication and optical wireless links with IPC codes for optical transmission (H04B10/112, H04B10/118) and optical beam steering (G02B26/08), so it captures the intersection of RF-style link engineering and optical hardware.

55 published families sit inside the 2015-to-2026 window, concentrated overwhelmingly in the H04B transmission subclass with smaller satellite (B64G), multiplexing (H04J) and positioning (G01S, G01C) overlaps. Publication lags filing by roughly 18 months, so the 2026 figure understates actual filing activity for that year.

Filing activity by year, 2017–2026
  1. 1TAARA CONNECT INC11
  2. 2MASSACHUSETTS INST OF TECH10
  3. 3EXELIS INC6
  4. 4ITT MANUFACTURING ENTERPRISES LLC5
  5. 5X DEVELOPMENT LLC5
  6. 6META PLATFORMS INC3
  7. 7BRIDGECOMM INC2
  8. 8PERATON INC2
  9. 9FISHER DONALD SCOTT2
  10. 10HARRIS CORP2
Source: Patsnap Eureka. Assignee ranking and totals. Derived from a Patsnap search on Free-Space Optical Communication Design Optimization 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
The Numbers

Filing trend and technology composition

The filing curve and the IPC spread together describe a field that built its core architecture early and has since seen incremental, not expansive, patenting.

A peak in 2019, then a plateau

Filings ran from 5 in 2017 to a peak of 8 in 2019, held at 7 by the 2022 midpoint, and stand at 2 in the still-incomplete 2026 count. Read together with the 18-month publication lag, this points to a technology area where the core design-optimization approaches were staked out in the late 2010s and filing since has been maintenance and refinement rather than a new wave of entrants.

A peak in 2019, then a plateau024685201720188201920202021202220232024202522026Most recent year is partial — publication lag means later filings are not yet visible.

H04B carries the field; everything else is a minority overlap

All 55 records touch H04B (transmission), with G02B (optical elements, 6 records) the largest secondary cluster — evidence that most design-optimization claims are being written as communications-system claims with optics as a supporting element, not as pure optics claims. Spacecraft (B64G, 3), positioning (G01S/G01C, 5 combined) and multiplexing (H04J, 4) show the field's satellite and free-space-link adjacencies, but none of them approaches H04B in volume.

H04B carries the field; everything else is a minority overlapH04B · Transmission (general)55100.0%G02B · Optical elements & systems610.9%H04J · Multiplex communication47.3%B64G · Cosmonautics & spacecraft35.5%G01N · Material analysis & testing35.5%G01S · Radar, sonar & positioning35.5%H04L · Digital information transmissi…35.5%G01C · Distance, navigation & gyrosco…23.6%Other712.7%

Shares are the percentage of the 55 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 Free-Space Optical Communication Design Optimization 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

The records other filers cite

Representative Record
US20220107473A12022-04-07

Determining pointing accuracy using optical fiber bundle (US20220107473A1)

TAARA CONNECT, INC.

A free-space optical communication device includes an optical fiber bundle and one or more processors. The optical fiber bundle includes a central fiber connected to a first photodetector, and a plurality of surrounding fibers, each surrounding fiber connected to a corresponding second photodetector. The one or more processors determine pointing accuracy of a beam received at the optical fiber bundle based on the signals generated at the central and surrounding photodetectors.Assigned to Taara Connect, Inc. and published 2022-04-07, this record reduces pointing-accuracy sensing to a fiber-bundle geometry rather than a servo-control algorithm — a hardware-first approach to a problem most earlier records solved in software.

US20220107473A1 — patent drawing 1US20220107473A1 — patent drawing 2
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Most-cited records in this landscape
#Publication no.Patent titleCitations
1US20070031151A1Acquisition, pointing, and tracking architecture for laser communication225
2US6347001B1Free-space laser communication system having six axes of movement211
3US20160043800A1Design of a free-space optical communication module for small satellites105
4US5517016ALasercom system architecture with reduced complexity70
5US7609972B2Acquisition, pointing, and tracking architecture for laser communication59
6US9813151B2Free-space optical communication module for small satellites41
7US20200244359A1Two-Mirror Tracking System For Free-Space Optical Communication27
8US20110274434A1Technique for Simultaneously Transmitting Wide and Narrow Optical Beacon Signals23
9US20180262271A1Celestial navigation using laser communication system17
10US10158427B2Celestial navigation using laser communication system13

Citation counts are drawn from a searched corpus and favour older filings; treat them as a measure of architectural influence, not of current market relevance.

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 Free-Space Optical Communication Design Optimization 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 implies for a filing decision

Three patterns in this dataset matter more than any single ranking: where citation weight sits, where filings are actually made, and how concentrated the inventor base is.

Citation anchors
225 citations
top-cited record

Old architecture, still the reference point

The most-cited record, US20070031151A1 on acquisition-pointing-and-tracking architecture, sits well ahead of anything published in the last decade, with US6347001B1 (six-axis laser communication, 211 citations) close behind. New filings in pointing and tracking are still being written against these two anchors.

Both top records predate 2010.
Geographic concentration
33 of 55
US receiving-office filings

This is a US-centred filing map

United States filings outnumber the EPO (7) and WIPO/PCT (6) combined, with Australia, Canada and Austria each contributing 2. A freedom-to-operate review that skips US prosecution history is skipping most of the relevant art.

EPO and PCT together trail the US by a wide margin.
Inventor concentration
3 pairs at 4 co-filings
strongest co-assignee links

A small, tightly linked inventor cluster

The strongest co-assignee pairings — Riesing with Nguyen, Riesing with Kingsbury, and Riesing with Caplan — each recur across 4 filings, pointing to a single collaborative team behind a meaningful share of the pointing-accuracy work rather than a broad, distributed inventor base.

10 co-assignee pairs recorded in total.
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Looking for what nobody has claimed yet?

Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to free-space optical communication design optimization, with the prior art for and against each one.

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Source: Patsnap Eureka. Co-assignee relationships and derived observations. Derived from a Patsnap search on Free-Space Optical Communication Design Optimization 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 active, and where the field is still open

Recent-year momentum across the most-cited assignees shows zero new filings in the latest year for every one of them — consistent with the plateau in the filing trend rather than any single company pulling back.

Momentum check
0 in latest year
across leading assignees

No assignee is currently accelerating

Every assignee tracked for recent-year momentum — including the Riesing-Nguyen-Kingsbury cluster and larger corporate holders — shows zero filings in the most recent year. Given the 18-month publication lag this likely understates 2025-2026 activity, but it confirms no single player is visibly pulling ahead right now.

Read alongside the 2026 partial-year count of 2.
Team-scale filers
4 shared filings
top co-assignee pairs

Individual-inventor teams hold real weight

Several of the most connected names in this dataset are individual inventors rather than corporate assignees, filing repeatedly as a team. That is unusual for a hardware-heavy field and suggests some of the sharpest claims here originated in a small satellite-communications engineering group rather than a large defence or telecom incumbent.

Riesing appears in all three top-strength pairs.
New entrants
2022 filing date
Taara Connect representative record

Newer commercial entrants are filing hardware-specific claims

The representative record from Taara Connect, filed in 2022, claims a fiber-bundle sensing geometry rather than a control algorithm — a sign that newer commercial entrants are looking for claim space in physical sensor architecture where the software approaches are already crowded.

Published 2022-04-07.
🔍
Sub-areas with thin claim density
Based on the IPC overlap counts, these branches carry far fewer records than the H04B core and are worth checking before assuming they are occupied.
Adaptive optics correction for atmospheric turbulenceFiber-bundle pointing-accuracy sensorsInter-satellite link margin optimization (B64G overlap)Multiplexed free-space optical channels (H04J overlap)Positioning-assisted beam acquisition (G01S/G01C overlap)
Rank all filers by momentum →
Recent-year filing momentum
AssigneeRecent yearYoY
X Development LLC0
ITT Manufacturing Enterprises LLC0
Exelis Inc.0
RIESING KATHLEEN MICHELLE0
NGUYEN TAM NGUYEN THUC0
KINGSBURY RYAN WALLACE0
CAPLAN DAVID O0
Massachusetts Institute of Technology (MIT)0
Source: Patsnap Eureka. Assignee-level momentum. Derived from a Patsnap search on Free-Space Optical Communication Design Optimization 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 landscape points to a plateaued, US-centred field with a small dense inventor cluster and several thin IPC branches. The next step is turning that into a specific filing or freedom-to-operate decision.

Check freedom-to-operate against the two citation anchors

Any new pointing-and-tracking claim should be checked against US20070031151A1 and US6347001B1 before drafting, since both remain the most-cited references in this dataset despite their age.

Run a claim comparison in Patsnap Eureka

Test the thin IPC branches for real white space

Adaptive optics correction, fiber-bundle sensing and inter-satellite link margin overlaps all carry single-digit record counts against 55 in the H04B core — worth a targeted search before assuming the space is occupied.

Explore white space in Patsnap Eureka

Track the small-team inventor cluster

The Riesing-Nguyen-Kingsbury-Caplan group accounts for several of the strongest co-assignee links in this dataset; watching their future filings is a low-cost way to see where satellite-scale pointing-accuracy work moves next.

Set up assignee monitoring in Patsnap Eureka
Source: Patsnap Eureka. Forward-looking reading of the same dataset. Derived from a Patsnap search on Free-Space Optical Communication Design Optimization 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 on this landscape

Answers are grounded in the same dataset. Derived from a Patsnap search on Free-Space Optical Communication Design Optimization 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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