PlainPatent

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 filing trajectory.

27,080
US patents granted
G08
Parent CPC class
20
Active assignees
+78%
5-yr velocity

The verdict

Traffic Control Systems ranks #75 of 670 CPC technology areas - 27,080 US patents granted since 2015, with filing up 78% over five years.

#75
of 670 CPC technology areas
27,080
US patents granted, 2015–2025
Toyota Jidosha
leading assignee (1,228)
+78%
filing velocity, last 5 yrs
Top assignee: Toyota Jidosha Kabushiki Kaisha (1,228 patents)

CPC subclass G08G - TRAFFIC CONTROL SYSTEMS - covers 27,080 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records, within the broader CPC class G08 (SIGNALLING). See our CPC classification guide for how the system works.

The competitive landscape in G08G is shaped by 20 distinct companies actively filing in this space. Toyota Jidosha Kabushiki Kaisha leads with 1,228 patents, followed by Denso Corporation at 767 grants and Honeywell International Inc. at 709.

Filing activity in G08G is up 78% over the past five years versus 2015-2019, a sharp acceleration suggesting an emerging or fast-moving technology area. All counts come directly from USPTO PatentsView and reflect US granted utility patents only.

Is G08G innovation accelerating?

US utility-patent grants per year in G08G, 2015–2025 - recent five years are up 78% versus 2015–2019.

1,0001,5002,0002,5003,0003,500 20152016201720182019202020212022202320242025 1,968

Who leads G08G?

The 12 most active assignees in TRAFFIC CONTROL SYSTEMS - wider bars mean more grants

patents

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.

Source USPTO PatentsView, granted utility patents As of 2015–2025 grant years
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

About This Class

CPC subclass G08G belongs to class G08.

27,080 patents were granted in this class between 2015 and 2025.

20 companies actively patent in this space.

Classification System

Cooperative Patent Classification (CPC) is a hierarchical patent classification system used by the USPTO and EPO.

← All Technology Classes Technology Rankings →

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).

Top 14 G08G assignees by class footprint. Bubble size = patents in G08G. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 510152025 050010001500 Patents in G08G Avg claims / patent (company-wide) Toyota JidoshaDensoHoneywell Internation…Honda MotorHere Global B VThe BoeingHyundai MotorState Farm Mutual Aut…Robert BoschWaymoGm Global Technology…Nissan MotorKia MotorsRockwell Collins
Top 14 G08G assignees by class footprint. Bubble size = patents in G08G. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class G08G?
CPC subclass G08G covers TRAFFIC CONTROL SYSTEMS. It belongs to CPC class G08 (SIGNALLING), with 27,080 US utility patents granted since 2015.
How many patents have been filed in G08G?
27,080 US utility patents were granted in CPC subclass G08G between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in G08G?
Toyota Jidosha Kabushiki Kaisha leads G08G with 1,228 patents, making it the most active assignee in this technology area.
How is patent data for G08G collected?
Patent data comes from USPTO PatentsView, a public research dataset maintained by the United States Patent and Trademark Office. It covers all US granted utility patents and assigns CPC codes based on the technology described in each patent.
What is the difference between CPC class and subclass?
A CPC class (e.g., G08) is a broad technology category. Subclasses like G08G provide finer granularity within that category. PlainPatent organizes data at the subclass level (4-character codes) for the most useful view of technology domains.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

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.