PlainPatent

CPC technology class · H02

H02P - Control OR Regulation OF Electric Motors

Control or regulation of electric motors, electric generators or dynamo-electric converters; controlling transformers, reactors or choke coils. 16,031 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

16,031
US patents granted
H02
Parent CPC class
20
Active assignees
+22%
5-yr velocity

The verdict

Control OR Regulation OF Electric Motors ranks #119 of 670 CPC technology areas - 16,031 US patents granted since 2015, with filing up 22% over five years.

#119
of 670 CPC technology areas
16,031
US patents granted, 2015–2025
Mitsubishi Electric
leading assignee (817)
+22%
filing velocity, last 5 yrs
Top assignee: Mitsubishi Electric Corporation (817 patents)

CPC subclass H02P - CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS - covers 16,031 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records, within the broader CPC class H02 (GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER). See our CPC classification guide for how the system works.

The competitive landscape in H02P is shaped by 20 distinct companies actively filing in this space. Mitsubishi Electric Corporation leads with 817 patents, followed by Denso Corporation at 639 grants and Fanuc Corporation at 252.

Filing activity in H02P is up 22% 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 H02P innovation accelerating?

US utility-patent grants per year in H02P, 2015–2025 - recent five years are up 22% versus 2015–2019.

1,0001,2001,4001,6001,800 20152016201720182019202020212022202320242025 1,057

Who leads H02P?

The 12 most active assignees in CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS - wider bars mean more grants

patents

What this shows Mitsubishi Electric is the most active filer in H02P, holding 817 of the 16,031 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 H02P
Rank Company Patents in H02P
#1 Mitsubishi Electric Corporation 817
#2 Denso Corporation 639
#3 Fanuc Corporation 252
#4 Hamilton Sundstrand Corporation (hsc) 221
#5 Rockwell Automation Technologies, Inc. 210
#6 Rohm Co., Ltd. 132
#7 Hitachi Automotive Systems, Ltd. 131
#8 Black & Decker Inc. 128
#9 Nidec Corporation 123
#10 Regal Beloit America, Inc. 116
#11 ABB Schweiz Ag 112
#12 Renesas Electronics Corporation 99
#13 Vestas Wind Systems A/s 96
#14 Kabushiki Kaisha Yaskawa Denki 95
#15 LSIS Co., Ltd. 91
#16 Hitachi Astemo, Ltd. 90
#17 Steering Solutions IP Holding Corporation 88
#18 Eaton Intelligent Power Limited 87
#19 Makita Corporation 86
#20 Daikin Industries, Ltd. 85

About This Class

CPC subclass H02P belongs to class H02.

16,031 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 H02P 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 H02P assignees by class footprint. Bubble size = patents in H02P. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 14 H02P assignees by class footprint. Bubble size = patents in H02P. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 5101520 02004006008001000 Patents in H02P Avg claims / patent (company-wide) Mitsubishi ElectricDensoFanucHamilton Sundstrand (…Rockwell AutomationRohmHitachi Automotive Sy…Black & DeckerNidecRegal Beloit AmericaAbb SchweizRenesasVestas Wind Systems A…Yaskawa Denki
Top 14 H02P assignees by class footprint. Bubble size = patents in H02P. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class H02P?
CPC subclass H02P covers CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS. It belongs to CPC class H02 (GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER), with 16,031 US utility patents granted since 2015.
How many patents have been filed in H02P?
16,031 US utility patents were granted in CPC subclass H02P between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in H02P?
Mitsubishi Electric Corporation leads H02P with 817 patents, making it the most active assignee in this technology area.
How is patent data for H02P 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., H02) is a broad technology category. Subclasses like H02P 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.