PlainPatent

CPC technology class · H02

H02H - Emergency Protective Circuit Arrangements

Emergency protective circuit arrangements. 10,591 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

10,591
US patents granted
#6/9
in H02
6.6%
H02 class share
+12%
5-yr velocity

The verdict

According to USPTO PatentsView, Emergency Protective Circuit Arrangements ranks #165 of 670 CPC technology areas - 10,591 US patents granted since 2015, with recorded grant volume up 12% over five years.

#165
of 670 CPC technology areas
10,591
US patents granted, 2015–2025
Eaton Intelligent Power
leading assignee (279)
+12%
grant velocity, last 5 yrs

How H02H's grant cadence moved

Between 2020–2024, H02H recorded 4,977 grants versus 4,451 in 2015–2019 (+12% equal-window velocity). Across complete years, output peaked in 2021 at 1,121 grants and bottomed in 2015 at 758 (+48% peak-over-trough). Lead assignee Eaton Intelligent Power Limited holds 2.6% of the class ; the top three share 6.5%.

Leaderboard read

H02H concentration, lead at 2.6%

Eaton Intelligent Power Limited leads this historical grant record at 2.6% of H02H - foreign corporation assignees hold 67% of class grants (3,468 of 5,144). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share
2.6%

279 of 10,591 grants

Top three share
6.5%

of the class's recorded grants

Lead over #2
76

more grants than ABB Schweiz AG

Where H02H sits inside H02

Among 9 subclasses in H02 (GENERATION; Conversion OR Distribution OF Electric Power), H02H ranks #6 and holds 6.6% 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 H02P 16,031 H02G 11,084 H02S 6,483 H02N 3,799 H02B 2,655

Rising assignees active in H02H

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 · 27 in H02H
  2. #2 Inspur Suzhou Intelligent Technology Co., Ltd. 217x 0 → 217 company-wide · 5 in H02H
  3. #3 Hitachi Energy Ltd 120x 0 → 120 company-wide · 22 in H02H
  4. #4 Changxin Memory Technologies, Inc. 63x 17 → 1,066 company-wide · 23 in H02H
  5. #5 Archer Aviation Inc. 44x 0 → 44 company-wide · 27 in H02H

H02H grants by year, peak 2021 (1,121)

US utility-patent grants per year in H02H, 2015–2025 - recent five years are up 12% versus 2015–2019.

4006008001,0001,200 20152016201720182019202020212022202320242025 617

Who leads H02H?

The 12 most active assignees in Emergency Protective Circuit Arrangements - wider bars mean more grants

patents

What this shows Eaton Intelligent… is the most active filer in H02H, holding 279 of the 10,591 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 H02H
Rank Company Patents in H02H
#1 Eaton Intelligent Power Limited 279
#2 ABB Schweiz AG 203
#3 Siemens Aktiengesellschaft 202
#4 Schweitzer Engineering Laboratories, Inc. 167
#5 Hubbell Incorporated 88
#6 Rohm Co., Ltd. 85
#7 Sumitomo Wiring Systems, Ltd. 76
#8 Eaton Corporation 74
#9 Fuji Electric Co., Ltd. 73
#10 Schneider Electric Industries SAS 70
#11 Schneider Electric USA, Inc. 69
#12 Lsis Co., Ltd. 68
#13 Autonetworks Technologies, Ltd. 67
#14 Rockwell Automation Technologies, Inc. 60
#15 General Electric Technology GMBH 59
#16 Phoenix Contact GMBH & Co. KG 56
#17 Semiconductor Components Industries, LLC 55
#18 Solaredge Technologies Ltd. 55
#19 Delta Electronics, Inc. 52
#20 S&C Electric Company 52

Footprint here vs. claim strategy

Each dot is a leading H02H 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 H02H assignees by class footprint. Bubble size = patents in H02H. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 5101520 050100150200250300 Patents in H02H Avg claims / patent (company-wide) Eaton Intelligent…Abb SchweizSiemens Aktiengesellsc…Schweitzer Engineering…Hubbell IncorporatedRohmSumitomo Wiring…EatonFuji ElectricSchneider Electric…Schneider Electric UsaLsisAutonetworksRockwell Automation
Top 14 H02H assignees by class footprint. Bubble size = patents in H02H. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Classes near H02H's 10,591-grant footprint

Nationwide nearest neighbors for H02H (#165 of 670 by volume ; lead share 2.6%) - not the H02 parent-class siblings above.

Nearest by grant volume

B65B 10,637 B05D 10,511 G01F 10,911 B64U 10,226

Nearest by lead-assignee share

C40B 2.6% C22F 2.6% B21D 2.7% F16F 2.6%

Questions about H02H

Which company holds the most patents in H02H?
Eaton Intelligent Power Limited leads H02H with 279 patents (2.6% of the subclass). By PatentsView assignee type, foreign corporations account for 67% of class grants.
Which H02H assignees grew fastest recently?
Among assignees with ≥5 grants in H02H, 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 27 patents in this subclass. Growth is company-wide, not class-only.
How does H02H compare inside parent class H02?
Inside H02 (GENERATION; Conversion OR Distribution OF Electric Power), H02H ranks #6 of 9 subclasses by grant volume and holds 6.6% of the parent class total. The largest sibling is H02J (49,883 grants).

What to do with this data

H02H in context - here's where to go next.

  • Eaton Intelligent Power Limited leads H02H with 279 grants in this class. See full portfolio
  • H02H ranks #165 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 - H02H figures are USPTO PatentsView granted-utility totals for this subclass (10,591 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.