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 grant trajectory.

Compiled by PlainPatent · May 15, 2026

1,503
US patents granted: #3/4
in E03: 20.6%
E03 class share: +58%
5-yr velocity

The verdict

According to USPTO PatentsView, Installations Or Methods For Obtaining ranks #405 of 670 CPC technology areas - 1,503 US patents granted since 2015, with recorded grant volume up 58% over five years.

#405
of 670 CPC technology areas: 1,503
US patents granted, 2015–2025: Mueller International
leading assignee (118): +58%
grant velocity, last 5 yrs

How E03B's grant cadence moved

Between 2020–2024, E03B recorded 840 grants versus 530 in 2015–2019 (+58% equal-window velocity). Across complete years, output peaked in 2023 at 197 grants and bottomed in 2015 at 59 (+234% peak-over-trough). Lead assignee Mueller International, LLC holds 7.9% of the class ; the top three share 12.4%.

Leaderboard read

E03B concentration, lead at 7.9%

Mueller International, LLC leads this historical grant record at 7.9% of E03B - us corporation assignees hold 66% of class grants (493 of 749). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share: 7.9%
Top three share: 12.4%
Lead over #2: 79

Where E03B sits inside E03

Among 4 subclasses in E03 (Water SUPPLY; Sewerage), E03B ranks #3 and holds 20.6% of the parent class's 7,304 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

E03C 2,911 E03D 1,515 E03F 1,375

Rising assignees active in E03B

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 Source Global, PBC 10x 2 → 20 company-wide · 17 in E03B
#2 Modology Design Group 8.00x 0 → 8 company-wide · 8 in E03B
#3 Water Harvesting, Inc. 8.00x 0 → 8 company-wide · 7 in E03B
#4 Sentinel Hydrosolutions, LLC 5.00x 1 → 5 company-wide · 11 in E03B
#5 Watergen Ltd. 4.00x 1 → 4 company-wide · 5 in E03B

E03B grants by year, peak 2023 (197)

US utility-patent grants per year in E03B, 2015–2025 - recent five years are up 58% versus 2015–2019.

Mueller International

118
Kohler Mira

39
Watts Regulator

29
Wcm Industries

24
Kennedy Valve

19
Source Global Pbc

17
Orbital Systems Ab

15
Wint Wi

13
Sentinel Hydrosolution…

11
Grundfos Holding A/S

9
Amtrol Licensing

9
Viega Technology & Kg

9

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.

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

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).

Classes near E03B's 1,503-grant footprint

Nationwide nearest neighbors for E03B (#405 of 670 by volume ; lead share 7.9%) - not the E03 parent-class siblings above.

Nearest by grant volume

B25H 1,500 E03D 1,515 C10B 1,527 F17D 1,470

Nearest by lead-assignee share

G03B 7.8% H04S 7.9% F25B 7.8% B60L 7.8%

Questions about E03B

Which company holds the most patents in E03B?

Mueller International, LLC leads E03B with 118 patents (7.9% of the subclass). By PatentsView assignee type, us corporations account for 66% of class grants.

Which E03B assignees grew fastest recently?

Among assignees with ≥5 grants in E03B, Source Global, PBC shows the highest company-wide grant multiple (10x: 2 grants in 2019–2021 → 20 in 2022–2024) while holding 17 patents in this subclass. Growth is company-wide, not class-only.

How does E03B compare inside parent class E03?

Inside E03 (Water SUPPLY; Sewerage), E03B ranks #3 of 4 subclasses by grant volume and holds 20.6% of the parent class total. The largest sibling is E03C (2,911 grants).

What to do with this data

E03B in context - here's where to go next.

Mueller International, LLC leads E03B with 118 grants in this class. See full portfolio
E03B ranks #405 of 670 by grant volume among all tracked CPC technology areas. See the ranking
Inside parent class E03, the largest sibling subclass is E03C with 2,911 grants. Explore E03C

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

Methodology - E03B figures are USPTO PatentsView granted-utility totals for this subclass (1,503 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.