PlainPatent

CPC technology class · G05

G05B - Control OR Regulating Systems IN General

Control or regulating systems in general; functional elements of such systems; monitoring or testing arrangements for such systems or elements. 46,942 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

46,942
US patents granted
G05
Parent CPC class
20
Active assignees
+72%
5-yr velocity

The verdict

Control OR Regulating Systems IN General ranks #37 of 670 CPC technology areas - 46,942 US patents granted since 2015, with filing up 72% over five years.

#37
of 670 CPC technology areas
46,942
US patents granted, 2015–2025
Fanuc
leading assignee (1,835)
+72%
filing velocity, last 5 yrs
Top assignee: Fanuc Corporation (1,835 patents)

CPC subclass G05B - CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS - covers 46,942 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records, within the broader CPC class G05 (CONTROLLING; REGULATING). See our CPC classification guide for how the system works.

The competitive landscape in G05B is shaped by 20 distinct companies actively filing in this space. Fanuc Corporation leads with 1,835 patents, followed by Siemens Aktiengesellschaft at 954 grants and Rockwell Automation Technologies, Inc. at 837.

Filing activity in G05B is up 72% 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 G05B innovation accelerating?

US utility-patent grants per year in G05B, 2015–2025 - recent five years are up 72% versus 2015–2019.

1,0002,0003,0004,0005,0006,000 20152016201720182019202020212022202320242025 3,692

Who leads G05B?

The 12 most active assignees in CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS - wider bars mean more grants

patents

What this shows Fanuc is the most active filer in G05B, holding 1,835 of the 46,942 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 G05B
Rank Company Patents in G05B
#1 Fanuc Corporation 1,835
#2 Siemens Aktiengesellschaft 954
#3 Rockwell Automation Technologies, Inc. 837
#4 Mitsubishi Electric Corporation 731
#5 General Electric Company 632
#6 Honeywell International Inc. 629
#7 Omron Corporation 590
#8 The Boeing Company 472
#9 Google Llc 423
#10 ABB Schweiz Ag 399
#11 Johnson Controls Technology Company 390
#12 Fisher-rosemount Systems, Inc. 331
#13 Amazon Technologies, Inc. 300
#14 Johnson Controls Tyco IP Holdings LLP 297
#15 Hitachi, Ltd. 276
#16 Yokogawa Electric Corporation 258
#17 X Development Llc 250
#18 Applied Materials, Inc. 238
#19 State Farm Mutual Automobile Insurance Company 213
#20 Sonos, Inc. 207

About This Class

CPC subclass G05B belongs to class G05.

46,942 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 G05B 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 G05B assignees by class footprint. Bubble size = patents in G05B. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 14 G05B assignees by class footprint. Bubble size = patents in G05B. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 51015202530 0500100015002000 Patents in G05B Avg claims / patent (company-wide) FanucSiemens Aktiengesells…Rockwell AutomationMitsubishi ElectricGeneral ElectricHoneywell Internation…OmronThe BoeingGoogleAbb SchweizJohnson Controls Tech…Fisher-rosemount Syst…AmazonJohnson Controls Tyco…
Top 14 G05B assignees by class footprint. Bubble size = patents in G05B. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class G05B?
CPC subclass G05B covers CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS. It belongs to CPC class G05 (CONTROLLING; REGULATING), with 46,942 US utility patents granted since 2015.
How many patents have been filed in G05B?
46,942 US utility patents were granted in CPC subclass G05B between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in G05B?
Fanuc Corporation leads G05B with 1,835 patents, making it the most active assignee in this technology area.
How is patent data for G05B 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., G05) is a broad technology category. Subclasses like G05B 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.