PlainPatent

CPC technology class · E03

E03B - Installations OR Methods FOR Obtaining

Installations or methods for obtaining, collecting, or distributing water. 1,503 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

1,503
US patents granted
E03
Parent CPC class
20
Active assignees
+79%
5-yr velocity

The verdict

Installations OR Methods FOR Obtaining ranks #405 of 670 CPC technology areas - 1,503 US patents granted since 2015, with filing up 79% over five years.

#405
of 670 CPC technology areas
1,503
US patents granted, 2015–2025
Mueller International
leading assignee (118)
+79%
filing velocity, last 5 yrs
Top assignee: Mueller International, Llc (118 patents)

CPC subclass E03B - INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER - covers 1,503 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records, within the broader CPC class E03 (WATER SUPPLY; SEWERAGE). See our CPC classification guide for how the system works.

The competitive landscape in E03B is shaped by 20 distinct companies actively filing in this space. Mueller International, Llc leads with 118 patents, followed by Kohler Mira Limited at 39 grants and Watts Regulator Co. at 29.

Filing activity in E03B is up 79% 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 E03B innovation accelerating?

US utility-patent grants per year in E03B, 2015–2025 - recent five years are up 79% versus 2015–2019.

50100150200250 20152016201720182019202020212022202320242025 107

Who leads E03B?

The 12 most active assignees in INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER - wider bars mean more grants

patents

What this shows Mueller International is the most active filer in E03B, holding 118 of the 1,503 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 E03B
Rank Company Patents in E03B
#1 Mueller International, Llc 118
#2 Kohler Mira Limited 39
#3 Watts Regulator Co. 29
#4 WCM Industries, Inc. 24
#5 Kennedy Valve Company 19
#6 Source Global, PBC 17
#7 Orbital Systems AB 15
#8 WINT WI Ltd 13
#9 Sentinel Hydrosolutions, Llc 11
#10 Grundfos Holding A/s 9
#11 Amtrol Licensing Inc. 9
#12 Viega Technology Gmbh & Co. KG 9
#13 Modology Design Group 8
#14 Phyn Llc 8
#15 Reliance Worldwide Corporation 7
#16 Mcwane, Inc. 7
#17 Water Harvesting, Inc. 7
#18 3eflow AB 7
#19 AMI Investments, Llc 7
#20 Gebr. Kemper Gmbh + Co. KG Metallwerke 7

About This Class

CPC subclass E03B belongs to class E03.

1,503 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 E03B 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 E03B assignees by class footprint. Bubble size = patents in E03B. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 14 E03B assignees by class footprint. Bubble size = patents in E03B. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 10152025 050100150 Patents in E03B Avg claims / patent (company-wide) Mueller InternationalKohler MiraWatts RegulatorWcm IndustriesKennedy ValveSource Global PbcOrbital Systems AbWint WiSentinel Hydrosolutio…Grundfos Holding A/SAmtrol LicensingViega Technology & KgModology Design GroupPhyn
Top 14 E03B assignees by class footprint. Bubble size = patents in E03B. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class E03B?
CPC subclass E03B covers INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER. It belongs to CPC class E03 (WATER SUPPLY; SEWERAGE), with 1,503 US utility patents granted since 2015.
How many patents have been filed in E03B?
1,503 US utility patents were granted in CPC subclass E03B between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in E03B?
Mueller International, Llc leads E03B with 118 patents, making it the most active assignee in this technology area.
How is patent data for E03B 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., E03) is a broad technology category. Subclasses like E03B 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.