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Strategic Infrastructure

Subsea Cables & International Gateways

Subsea cables and international gateways covers international connectivity infrastructure, including submarine cable systems and their landing stations, cross-border terrestrial fibre links, international gateway facilities, and commercial satellite gateways and teleports. One of the capabilities of Communications & Digital Infrastructure.

International families
1,2582015 to 2024
Leading country
United States1.8× the next
All families
4,001home filings included
Over five years
Rising2020 to 2024 against the five before

Year by year

Patent families by country of origin and the year of the earliest filing, 2000 to 2025; 2025 is a part year, still filling in. International families are those for which protection was sought beyond one country.

Volume

International patent families in the capability, by the year of the earliest filing.

Source: Global Institute for National Capability (GINC), 2026. Underlying patents from 107 patent offices, IFI CLAIMS and Google

Share by country

Each country's share of the year's international families, in per cent: the capability's five largest countries of origin, 2015 to 2024, and the rest of the world.

Source: Global Institute for National Capability (GINC), 2026. Underlying patents from 107 patent offices, IFI CLAIMS and Google

Country leaderboard

International patent families, 2015 to 2024, by country of origin. Growth compares the latest five full years with the five before.

Ten largest

United States

China

United Kingdom

France

Japan

South Korea

Germany

Sweden

Norway

Netherlands

335

189

129

117

83

74

59

52

41

31

2000 to 2025
1United States33526.6%1.5×
454
2China18915.0%2.4×
2,506
3United Kingdom12910.3%1.1×
152
4France1179.3%1.3×
120
5Japan836.6%1.4×
146
6South Korea745.9%1.6×
237
7Germany594.7%0.6×
63
8Sweden524.1%4.2×
59
9Norway413.3%1.9×
50
10Netherlands312.5%0.4×
36
11Italy272.1%1.5×
29
12Denmark252.0%1.1×
27
13Belgium151.2%1.1×
16
14Taiwan121.0%3.0×
17
15Switzerland121.0%0.5×
15
16Finland100.8%2.3×
10
17Spain100.8%1.0×
10
18Israel70.6%0.8×
10
19Australia60.5%0.2×
6
20Brazil60.5%5.0×
7
21Canada50.4%0.0×
6
22Austria40.3%1.0×
4
23Ireland20.2%1.0×
3
24India10.1%0.0×
2
25Singapore10.1%–
1
26Türkiye10.1%–
1
27South Africa10.1%–
1
28Russia00.0%–
4
29Poland00.0%–
1
30Hong Kong00.0%–
2
31New Zealand00.0%–
1
32Mexico00.0%–
1

Applicants

The largest applicants by international patent families, 2015 to 2024: across the world, then within each of the five countries with the most families in Subsea Cables & International Gateways. Names are as held in the source and are not consolidated across subsidiaries.

Global

1,258 international families

HUGHES NETWORK SYSTEMS LLC · United States

NEXANS · France

NKT HV CABLES AB · Sweden

ZHONGTIAN TECH SUBMARINE CABLE CO LTD · China

ZHONGTIAN TECHNOLOGY SUBMARINE CABLES CO LTD · China

LS CABLE & SYSTEM LTD · South Korea

82

60

47

47

46

30

United States

335 international families

HUGHES NETWORK SYSTEMS LLC

VIASAT INC

QUALCOMM INC

KRATOS INTEGRAL HOLDINGS LLC

KYMETA CORP

SUBCOM LLC

82

30

26

11

11

8

China

189 international families

ZHONGTIAN TECH SUBMARINE CABLE CO LTD

ZHONGTIAN TECHNOLOGY SUBMARINE CABLES CO LTD

JIANGSU ZHONGTIAN TECHNOLOGY CO LTD

HUAWEI TECH CO LTD

SOUTH SEA SUBMARINE CABLE CO LTD

ZHONGTIAN DAFENG SUBMARINE CABLES CO LTD

47

46

28

25

19

18

United Kingdom

129 international families

TECHNIP UK LTD

ADVANCED INNERGY LTD

ADVANCED INSULATION LTD

MAATS TECH LTD

SOIL MACHINE DYNAMICS LTD

BALMORAL COMTEC LTD

15

9

8

7

7

5

France

117 international families

NEXANS

THALES SA

TECHNIPFMC SUBSEA FRANCE

EUTELSAT SA

Technip N Power SAS

ESA

60

20

5

4

4

3

Japan

83 international families

NEC CORP

SUMITOMO ELECTRIC INDUSTRIES

NIPPON TELEGRAPH & TELEPHONE

MITSUBISHI ELECTRIC CORP

NEC PLATFORMS LTD

SHARP KK

21

11

10

7

5

4

Similar capabilities

The nine capabilities that share the most international patent families with Subsea Cables & International Gateways, 2015 to 2024: the families counted in both as a share of those counted in either. Each card shows its five largest countries.

Strategic Infrastructure

Ground Segment & Tracking

17.0% shared · 519 families in both

United States

China

Japan

South Korea

France

738

578

300

153

115

National Security

Space Support to Operations

6.1% shared · 519 families in both

United States

China

Japan

South Korea

France

2,402

2,136

706

480

437

Critical Technology

Satellite & Constellation Technologies

5.1% shared · 519 families in both

United States

China

Japan

France

South Korea

2,984

2,248

933

651

508

Strategic Infrastructure

Satellites & Orbital Systems

4.9% shared · 511 families in both

United States

China

Japan

France

South Korea

3,071

2,252

925

693

509

Strategic Infrastructure

Transmission & Distribution

1.7% shared · 534 families in both

Japan

United States

Germany

China

Switzerland

6,370

4,752

4,565

3,876

2,155

Strategic Infrastructure

Storage, Transport & Export

1.4% shared · 114 families in both

United States

France

Japan

China

South Korea

1,149

1,029

876

701

523

National Security

Space Domain Awareness & Control

0.9% shared · 16 families in both

Japan

United States

France

Germany

China

145

123

41

26

21

Strategic Infrastructure

Oil & Gas Extraction

0.5% shared · 183 families in both

United States

China

Saudi Arabia

France

Norway

17,083

4,363

2,572

1,718

1,707

Strategic Infrastructure

Seaports & Terminals

0.4% shared · 22 families in both

China

Japan

United States

France

South Korea

482

422

420

416

286

Crosswalk

How Subsea Cables & International Gateways is matched to the patent classifications. The entries below were chosen for it; each stands for itself and everything beneath it in the scheme, 9 Cooperative entries in all. A patent family counts when any of its codes, in either scheme and at any office, falls under one of them. Codes since retired are placed under the entries that replaced them.

EntryTitle in the schemeWhy it is chosenCPC codesIPC codesDocuments
H01B7/14Submarine cablesSubmarine cables215,892
H02G1/10Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle in or under waterLaying cables in or under water116,277
B63B35/04Cable-laying vesselsCable-laying vessels221,882
G02B6/4427Pressure resistant cables, e.g. undersea cablesPressure-resistant and undersea optical cables2none6,014
G02B6/506Underwater installationUnderwater installation of optical cables1none737
H04B7/18517Transmission equipment in earth stationsTransmission equipment in satellite earth stations1none7,449

CPC and IPC codes are the codes in use on patent documents, at any office, that fall under the entry. Documents is the larger of the two schemes' counts of documents carrying one of them. An entry with no IPC codes can be told apart only in the Cooperative scheme.

The Cooperative codes in use that count towards Subsea Cables & International Gateways: 9 codes on 24,676 documents. The full crosswalk is in the cpc-to-capability.csv download.

CodeTitleUnder entryHow placedDocuments
H04B7/18517Transmission equipment in earth stationsH04B7/18517In the scheme7,449
H02G1/10Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle in or under waterH02G1/10In the scheme4,998
H01B7/14Submarine cablesH01B7/14In the scheme3,899
G02B6/4427Pressure resistant cables, e.g. undersea cablesG02B6/4427In the scheme3,871
G02B6/4428Penetrator systems in pressure-resistant devicesG02B6/4427In the scheme2,143
B63B35/04Cable-laying vesselsB63B35/04In the scheme1,369
G02B6/506Underwater installationG02B6/506In the scheme737
H01B7/145Submarine cables associated with hydrodynamic bodiesH01B7/14In the scheme128
B63B35/06Cable-laying vessels for moving cable-ends from ship to shoreB63B35/04In the scheme82
Match: Direct
The capability is itself a technology or a kind of physical system, and the classification names it. Thin coverage: the IPC entries mix power and telecom cables, and optical subsea cables and satellite gateways are separable only in CPC. The crosswalk is a first pass that nobody has reviewed.

Other capabilities in Communications & Digital Infrastructure