PlainPatent

CPC technology class · E05

E05Y - Indexing Scheme Associated With Subclasses E05d And E05f

Indexing scheme associated with subclasses e05d and e05f, relating to construction elements, electric control, power supply, power signal or transmission, user interfaces, mounting or coupling, details, accessories, auxiliary operations not otherwise provided for, application thereof. 8,287 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

8,287
US patents granted
#2/6
in E05
26.9%
E05 class share
+59%
5-yr velocity

The verdict

According to USPTO PatentsView, Indexing Scheme Associated With Subclasses E05d And E05f ranks #188 of 670 CPC technology areas - 8,287 US patents granted since 2015, with recorded grant volume up 59% over five years.

#188
of 670 CPC technology areas
8,287
US patents granted, 2015–2025
Ford Global
leading assignee (293)
+59%
grant velocity, last 5 yrs

How E05Y's grant cadence moved

Between 2020–2024, E05Y recorded 4,426 grants versus 2,775 in 2015–2019 (+59% equal-window velocity). Across complete years, output peaked in 2022 at 935 grants and bottomed in 2016 at 429 (+118% peak-over-trough). Lead assignee Julius Blum GMBH holds 1.7% of the class ; the top three share 4.0%.

Leaderboard read

E05Y concentration, lead at 1.7%

Julius Blum GMBH leads this historical grant record at 1.7% of E05Y - foreign corporation assignees hold 62% of class grants (2,713 of 4,376). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share
1.7%

138 of 8,287 grants

Top three share
4.0%

of the class's recorded grants

Lead over #2
41

more grants than Magna Closures Inc.

Where E05Y sits inside E05

Among 6 subclasses in E05 (LOCKS; KEYS; Window OR Door FITTINGS; Safes), E05Y ranks #2 and holds 26.9% of the parent class's 30,842 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

E05B 9,176 E05F 5,529 E05D 4,538 E05C 2,961 E05G 351

Rising assignees active in E05Y

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 Assa Abloy Americas Residential Inc. 95x 0 → 95 company-wide · 6 in E05Y
  2. #2 Aisin Corporation 50x 9 → 447 company-wide · 53 in E05Y
  3. #3 Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Coburg 40x 1 → 40 company-wide · 6 in E05Y
  4. #4 Qingdao Haier Refrigerator Co., Ltd. 32x 2 → 63 company-wide · 13 in E05Y
  5. #5 Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Bamberg 16x 3 → 49 company-wide · 53 in E05Y

E05Y grants by year, peak 2022 (935)

US utility-patent grants per year in E05Y, 2015–2025 - recent five years are up 59% versus 2015–2019.

4006008001,000 20152016201720182019202020212022202320242025 618

Who leads E05Y?

The 12 most active assignees in Indexing Scheme Associated With Subclasses E05d AND E05f, Relating TO Construction Elements, Electric Control, Power Supply, Power Signal OR Transmission, User Interfaces, Mounting OR Coupling, Details, Accessories, Auxiliary Operations NOT Otherwise Provided FOR, Application Thereof - wider bars mean more grants

patents

What this shows Ford Global is the most active filer in E05Y, holding 293 of the 8,287 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 E05Y
Rank Company Patents in E05Y
#1 Julius Blum GMBH 138
#2 Magna Closures Inc. 97
#3 Whirlpool Corporation 93
#4 Assa Abloy Entrance Systems AB 84
#5 Aisin Seiki Kabushiki Kaisha 82
#6 Z124 82
#7 Schlage Lock Company LLC 77
#8 The Chamberlain Group LLC 74
#9 Aisin Corporation 53
#10 Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Bamberg 53
#11 BSH Hausgeräte GmbH 49
#12 Overhead Door Corporation 48
#13 Fositek Corporation 48
#14 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft 46
#15 Mitsuba Corporation 43
#16 Kiekert AG 42
#17 Mitsui Kinzoku ACT Corporation 41
#18 Sugatsune Kogyo Co., Ltd. 39
#19 Compal Electronics, Inc. 38
#20 Brose Fahrzeugteile GmbH & Co. KG, Hallstadt 37

Footprint here vs. claim strategy

Each dot is a leading E05Y 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 E05Y assignees by class footprint. Bubble size = patents in E05Y. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 510152025 050100150 Patents in E05Y Avg claims / patent (company-wide) Julius BlumMagna ClosuresWhirlpoolAssa Abloy Entrance…Aisin SeikiZ124Schlage LockThe Chamberlain GroupAisinBrose Fahrzeugteile…Bsh HausgeräteOverhead DoorFositekBrose Fahrzeugteile &…
Top 14 E05Y assignees by class footprint. Bubble size = patents in E05Y. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Classes near E05Y's 8,287-grant footprint

Nationwide nearest neighbors for E05Y (#188 of 670 by volume ; lead share 3.5%) - not the E05 parent-class siblings above.

Nearest by grant volume

A47J 8,354 A61C 8,164 C12M 8,154 C07B 8,058

Nearest by lead-assignee share

C05D 3.5% E06B 3.5% A61B 3.5% C01F 3.6%

Questions about E05Y

Which company holds the most patents in E05Y?
Ford Global Technologies, LLC leads E05Y with 293 patents (1.7% of the subclass). By PatentsView assignee type, foreign corporations account for 62% of class grants.
Which E05Y assignees grew fastest recently?
Among assignees with ≥5 grants in E05Y, Assa Abloy Americas Residential Inc. shows the highest company-wide grant multiple (95x: 0 grants in 2019–2021 → 95 in 2022–2024) while holding 6 patents in this subclass. Growth is company-wide, not class-only.
How does E05Y compare inside parent class E05?
Inside E05 (LOCKS; KEYS; Window OR Door FITTINGS; Safes), E05Y ranks #2 of 6 subclasses by grant volume and holds 26.9% of the parent class total. The largest sibling is E05B (9,176 grants).

What to do with this data

E05Y in context - here's where to go next.

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

Methodology - E05Y figures are USPTO PatentsView granted-utility totals for this subclass (8,287 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.