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 filing trajectory.

10,591
US patents granted
H02
Parent CPC class
20
Active assignees
+26%
5-yr velocity

The verdict

Emergency Protective Circuit Arrangements ranks #165 of 670 CPC technology areas - 10,591 US patents granted since 2015, with filing up 26% over five years.

#165
of 670 CPC technology areas
10,591
US patents granted, 2015–2025
Eaton Intelligent Pow…
leading assignee (279)
+26%
filing velocity, last 5 yrs
Top assignee: Eaton Intelligent Power Limited (279 patents)

CPC subclass H02H - EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS - covers 10,591 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 H02H is shaped by 20 distinct companies actively filing in this space. Eaton Intelligent Power Limited leads with 279 patents, followed by ABB Schweiz Ag at 203 grants and Siemens Aktiengesellschaft at 202.

Filing activity in H02H is up 26% 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 H02H innovation accelerating?

US utility-patent grants per year in H02H, 2015–2025 - recent five years are up 26% 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 Pow… 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

About This Class

CPC subclass H02H belongs to class H02.

10,591 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 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).

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 Pow…Abb SchweizSiemens Aktiengesells…Schweitzer Engineerin…Hubbell IncorporatedRohmSumitomo Wiring Syste…EatonFuji ElectricSchneider Electric In…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).

Frequently Asked Questions

What is CPC class H02H?
CPC subclass H02H covers EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS. It belongs to CPC class H02 (GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER), with 10,591 US utility patents granted since 2015.
How many patents have been filed in H02H?
10,591 US utility patents were granted in CPC subclass H02H between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in H02H?
Eaton Intelligent Power Limited leads H02H with 279 patents, making it the most active assignee in this technology area.
How is patent data for H02H 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 H02H 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.