CPC technology class · G08

G08G - Traffic Control Systems

Traffic control systems. 27,080 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

Compiled by PlainPatent · May 15, 2026

27,080
US patents granted: #1/3
in G08: 46.0%
G08 class share: +57%
5-yr velocity

The verdict

According to USPTO PatentsView, Traffic Control Systems ranks #75 of 670 CPC technology areas - 27,080 US patents granted since 2015, with recorded grant volume up 57% over five years.

#75
of 670 CPC technology areas: 27,080
US patents granted, 2015–2025: Toyota Jidosha
leading assignee (1,228): +57%
grant velocity, last 5 yrs

How G08G's grant cadence moved

Between 2020–2024, G08G recorded 14,621 grants versus 9,303 in 2015–2019 (+57% equal-window velocity). Across complete years, output peaked in 2022 at 3,099 grants and bottomed in 2015 at 1,306 (+137% peak-over-trough). Lead assignee Toyota Jidosha Kabushiki Kaisha holds 4.5% of the class ; the top three share 10.0%.

Leaderboard read

G08G concentration, lead at 4.5%

Toyota Jidosha Kabushiki Kaisha leads this historical grant record at 4.5% of G08G - foreign corporation assignees hold 52% of class grants (9,802 of 18,676). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share: 4.5%
Top three share: 10.0%
Lead over #2: 461

Where G08G sits inside G08

Among 3 subclasses in G08 (Signalling), G08G ranks #1 and holds 46.0% of the parent class's 58,909 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

G08B 25,403 G08C 6,426

Rising assignees active in G08G

Company-wide grant multiples (2022–2024 vs 2019–2021) among assignees with ≥5 patents in this subclass. Growth is company-wide; class patent counts are subclass-specific.

#1 Kyndryl, Inc. 478x 0 → 478 company-wide · 6 in G08G
#2 Mercedes-Benz Group AG 257x 0 → 257 company-wide · 15 in G08G
#3 Huawei Cloud Computing Technologies Co., Ltd. 144x 0 → 144 company-wide · 8 in G08G
#4 Apollo Intelligent Driving Technology (BEIJING) Co., Ltd. 140x 0 → 140 company-wide · 30 in G08G
#5 NIO Technology (ANHUI) Co., Ltd 121x 0 → 121 company-wide · 8 in G08G

G08G grants by year, peak 2022 (3,099)

US utility-patent grants per year in G08G, 2015–2025 - recent five years are up 57% versus 2015–2019.

Toyota Jidosha

1,228
Denso

767
Honeywell Internationa…

709
Honda Motor

570
Here Global B V

481
The Boeing

464
Hyundai Motor

447
State Farm Mutual…

447
Robert Bosch

366
Waymo

346
Gm Global Technology…

319
Nissan Motor

300

What this shows Toyota Jidosha is the most active filer in G08G, holding 1,228 of the 27,080 patents in this class. Concentration at the top signals how contestable this technology area is for new entrants.

View data table

Top patent holders in CPC subclass G08G
Rank	Company	Patents in G08G
#1	Toyota Jidosha Kabushiki Kaisha	1,228
#2	Denso Corporation	767
#3	Honeywell International Inc.	709
#4	Honda Motor Co., Ltd.	570
#5	Here Global B.V.	481
#6	The Boeing Company	464
#7	Hyundai Motor Company	447
#8	State Farm Mutual Automobile Insurance Company	447
#9	Robert Bosch GmbH	366
#10	Waymo LLC	346
#11	GM Global Technology Operations LLC	319
#12	Nissan Motor Co., Ltd.	300
#13	KIA Motors Corporation	259
#14	Rockwell Collins, Inc.	238
#15	Allstate Insurance Company	232
#16	Toyota Motor Engineering & Manufacturing North America, Inc.	224
#17	NEC Corporation	223
#18	Magna Electronics Inc.	214
#19	Volkswagen Aktiengesellschaft	209
#20	Uber Technologies, Inc.	196

Footprint here vs. claim strategy

Each dot is a leading G08G assignee, placed by how many patents it holds in this class (horizontal) against its company-wide average claims per patent (vertical) - a read on whether the class is led by broad-but-shallow filers or focused deep-claim players.

Top 14 G08G assignees by class footprint. Bubble size = patents in G08G. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Classes near G08G's 27,080-grant footprint

Nationwide nearest neighbors for G08G (#75 of 670 by volume ; lead share 4.5%) - not the G08 parent-class siblings above.

Nearest by grant volume

G06K 27,107 H02K 26,848 C09D 27,394 G03G 26,691

Nearest by lead-assignee share

C08H 4.5% G09B 4.6% H04K 4.6% H03L 4.5%

Questions about G08G

Which company holds the most patents in G08G?

Toyota Jidosha Kabushiki Kaisha leads G08G with 1,228 patents (4.5% of the subclass). By PatentsView assignee type, foreign corporations account for 52% of class grants.

Which G08G assignees grew fastest recently?

Among assignees with ≥5 grants in G08G, Kyndryl, Inc. shows the highest company-wide grant multiple (478x: 0 grants in 2019–2021 → 478 in 2022–2024) while holding 6 patents in this subclass. Growth is company-wide, not class-only.

How does G08G compare inside parent class G08?

Inside G08 (Signalling), G08G ranks #1 of 3 subclasses by grant volume and holds 46.0% of the parent class total. The largest sibling is G08B (25,403 grants).

What to do with this data

G08G in context - here's where to go next.

Toyota Jidosha Kabushiki Kaisha leads G08G with 1,228 grants in this class. See full portfolio
G08G ranks #75 of 670 by grant volume among all tracked CPC technology areas. See the ranking
Inside parent class G08, the largest sibling subclass is G08B with 25,403 grants. Explore G08B

Figures reflect USPTO PatentsView grant data through 2026-05-15; pending applications not yet granted are not counted.

Methodology - G08G figures are USPTO PatentsView granted-utility totals for this subclass (27,080 grants in the tracked window).

Every figure on PlainPatent is rendered directly from USPTO source data, no number is typed in by an editor. This page draws directly on USPTO source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.