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 grant trajectory.

16,031
US patents granted
#4/9
in H02
9.9%
H02 class share
+7%
5-yr velocity

The verdict

According to USPTO PatentsView, Control Or Regulation Of Electric Motors ranks #119 of 670 CPC technology areas - 16,031 US patents granted since 2015, with recorded grant volume up 7% over five years.

#119
of 670 CPC technology areas
16,031
US patents granted, 2015–2025
Mitsubishi Electric
leading assignee (817)
+7%
grant velocity, last 5 yrs

How H02P's grant cadence moved

Between 2020–2024, H02P recorded 7,361 grants versus 6,879 in 2015–2019 (+7% equal-window velocity). Across complete years, output peaked in 2019 at 1,682 grants and bottomed in 2015 at 1,141 (+47% peak-over-trough). Lead assignee Mitsubishi Electric Corporation holds 5.1% of the class ; the top three share 10.7%.

Leaderboard read

H02P concentration, lead at 5.1%

Mitsubishi Electric Corporation leads this historical grant record at 5.1% of H02P - foreign corporation assignees hold 74% of class grants (6,527 of 8,861). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share
5.1%

817 of 16,031 grants

Top three share
10.7%

of the class's recorded grants

Lead over #2
178

more grants than Denso Corporation

Where H02P sits inside H02

Among 9 subclasses in H02 (GENERATION; Conversion OR Distribution OF Electric Power), H02P ranks #4 and holds 9.9% of the parent class's 161,326 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

H02J 49,883 H02M 33,952 H02K 26,848 H02G 11,084 H02H 10,591 H02S 6,483 H02N 3,799 H02B 2,655

Rising assignees active in H02P

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. #1 Huawei Digital Power Technologies Co., Ltd. 245x 0 → 245 company-wide · 16 in H02P
  2. #2 HL Mando Corporation 212x 0 → 212 company-wide · 25 in H02P
  3. #3 LX Semicon Co., Ltd. 177x 0 → 177 company-wide · 5 in H02P
  4. #4 Hitachi Energy Ltd 120x 0 → 120 company-wide · 5 in H02P
  5. #5 Contemporary Amperex Technology (HONG KONG) Limited 87x 0 → 87 company-wide · 5 in H02P

H02P grants by year, peak 2019 (1,682)

US utility-patent grants per year in H02P, 2015–2025 - recent five years are up 7% 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

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). 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…Black & DeckerNidecRegal Beloit AmericaAbb SchweizRenesasVestas Wind Systems…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).

Classes near H02P's 16,031-grant footprint

Nationwide nearest neighbors for H02P (#119 of 670 by volume ; lead share 5.1%) - not the H02 parent-class siblings above.

Nearest by grant volume

F04D 16,174 F02C 16,237 C22C 16,292 F21S 15,705

Nearest by lead-assignee share

Y02E 5.1% H01P 5.1% B63C 5.1% F23N 5.0%

Questions about H02P

Which company holds the most patents in H02P?
Mitsubishi Electric Corporation leads H02P with 817 patents (5.1% of the subclass). By PatentsView assignee type, foreign corporations account for 74% of class grants.
Which H02P assignees grew fastest recently?
Among assignees with ≥5 grants in H02P, Huawei Digital Power Technologies Co., Ltd. shows the highest company-wide grant multiple (245x: 0 grants in 2019–2021 → 245 in 2022–2024) while holding 16 patents in this subclass. Growth is company-wide, not class-only.
How does H02P compare inside parent class H02?
Inside H02 (GENERATION; Conversion OR Distribution OF Electric Power), H02P ranks #4 of 9 subclasses by grant volume and holds 9.9% of the parent class total. The largest sibling is H02J (49,883 grants).

What to do with this data

H02P in context - here's where to go next.

  • Mitsubishi Electric Corporation leads H02P with 817 grants in this class. See full portfolio
  • H02P ranks #119 of 670 by grant volume among all tracked CPC technology areas. See the ranking
  • Inside parent class H02, the largest sibling subclass is H02J with 49,883 grants. Explore H02J

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

Methodology - H02P figures are USPTO PatentsView granted-utility totals for this subclass (16,031 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.