PlainPatent

CPC technology class · E01

E01H - Street Cleaning

Street cleaning; cleaning of permanent ways; cleaning beaches; dispersing ; or preventing; fog in general ; cleaning street or railway furniture or tunnel walls. 971 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

971
US patents granted
E01
Parent CPC class
20
Active assignees
+11%
5-yr velocity

The verdict

Street Cleaning ranks #463 of 670 CPC technology areas - 971 US patents granted since 2015, with filing up 11% over five years.

#463
of 670 CPC technology areas
971
US patents granted, 2015–2025
Honda Motor
leading assignee (38)
+11%
filing velocity, last 5 yrs
Top assignee: Honda Motor Co., Ltd. (38 patents)

CPC subclass E01H - STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING ; OR PREVENTING; FOG IN GENERAL ; CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS - covers 971 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records, within the broader CPC class E01 (CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES). See our CPC classification guide for how the system works.

The competitive landscape in E01H is shaped by 20 distinct companies actively filing in this space. Honda Motor Co., Ltd. leads with 38 patents, followed by THE TORO Company at 27 grants and MTD Products Inc at 24.

Filing activity in E01H is up 11% over the past five years versus 2015-2019, a relatively steady filing pace. All counts come directly from USPTO PatentsView and reflect US granted utility patents only.

Is E01H innovation accelerating?

US utility-patent grants per year in E01H, 2015–2025 - recent five years are up 11% versus 2015–2019.

708090100110 20152016201720182019202020212022202320242025 72

Who leads E01H?

The 12 most active assignees in STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING ; OR PREVENTING; FOG IN GENERAL ; CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS - wider bars mean more grants

patents

What this shows Honda Motor is the most active filer in E01H, holding 38 of the 971 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 E01H
Rank Company Patents in E01H
#1 Briggs & Stratton, Llc 29
#2 THE TORO Company 27
#3 MTD Products Inc 24
#4 Prinoth S.p.a. 22
#5 Douglas Dynamics, L.l.c. 14
#6 Andreas Stihl Ag & Co. KG 13
#7 Chervon (hk) Limited 12
#8 Federal Signal Corporation 12
#9 Meyer Products, Llc 12
#10 Old Dominion Brush Company 11
#11 Hydro-gear Limited Partnership 10
#12 Positec Power Tools (suzhou) Co., Ltd. 10
#13 Winter Equipment Company 10
#14 Soucy International Inc. 9
#15 Venture Products, Inc. 9
#16 Alamo Group Inc. 9
#17 Pro-tech Manufacturing And Distribution, Inc. 9
#18 Nanjing Chervon Industry Co., Ltd. 8
#19 Ariens Company 8
#20 Clevertivity Llc 8

About This Class

CPC subclass E01H belongs to class E01.

971 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 E01H 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 E01H assignees by class footprint. Bubble size = patents in E01H. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 14 E01H assignees by class footprint. Bubble size = patents in E01H. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 5101520 51015202530 Patents in E01H Avg claims / patent (company-wide) Briggs & StrattonThe ToroMtd ProductsPrinoth S P ADouglas Dynamics L L CAndreas Stihl & KgChervon (Hk)Federal SignalMeyer ProductsOld Dominion BrushHydro-gear PartnershipPositec Power Tools (…Winter EquipmentSoucy International
Top 14 E01H assignees by class footprint. Bubble size = patents in E01H. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class E01H?
CPC subclass E01H covers STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING ; OR PREVENTING; FOG IN GENERAL ; CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS. It belongs to CPC class E01 (CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES), with 971 US utility patents granted since 2015.
How many patents have been filed in E01H?
971 US utility patents were granted in CPC subclass E01H between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in E01H?
Honda Motor Co., Ltd. leads E01H with 38 patents, making it the most active assignee in this technology area.
How is patent data for E01H 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., E01) is a broad technology category. Subclasses like E01H 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.