CPC technology class · E05

E05F - Devices For Moving Wings Into Open Or Closed Position

Devices for moving wings into open or closed position; checks for wings; wing fittings not otherwise provided for, concerned with the functioning of the wing. 5,529 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

Compiled by PlainPatent · May 15, 2026

5,529
US patents granted: #3/6
in E05: 17.9%
E05 class share: +23%
5-yr velocity

The verdict

According to USPTO PatentsView, Devices For Moving Wings Into Open Or Closed Position ranks #243 of 670 CPC technology areas - 5,529 US patents granted since 2015, with recorded grant volume up 23% over five years.

#243
of 670 CPC technology areas: 5,529
US patents granted, 2015–2025: Ford Global
leading assignee (254): +23%
grant velocity, last 5 yrs

How E05F's grant cadence moved

Between 2020–2024, E05F recorded 2,655 grants versus 2,157 in 2015–2019 (+23% equal-window velocity). Across complete years, output peaked in 2019 at 588 grants and bottomed in 2015 at 354 (+66% peak-over-trough). Lead assignee Julius Blum GMBH holds 1.8% of the class ; the top three share 4.8%.

Leaderboard read

E05F concentration, lead at 1.8%

Julius Blum GMBH leads this historical grant record at 1.8% of E05F - foreign corporation assignees hold 64% of class grants (1,882 of 2,926). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share: 1.8%
Top three share: 4.8%
Lead over #2: 11

Where E05F sits inside E05

Among 6 subclasses in E05 (LOCKS; KEYS; Window OR Door FITTINGS; Safes), E05F ranks #3 and holds 17.9% 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 E05Y 8,287 E05D 4,538 E05C 2,961 E05G 351

Rising assignees active in E05F

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 Aisin Corporation 50x 9 → 447 company-wide · 43 in E05F
#2 Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Coburg 40x 1 → 40 company-wide · 5 in E05F
#3 Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Bamberg 16x 3 → 49 company-wide · 51 in E05F
#4 Moshun, LLC 16x 0 → 16 company-wide · 13 in E05F
#5 Rytec Corporation 7.00x 1 → 7 company-wide · 6 in E05F

E05F grants by year, peak 2019 (588)

US utility-patent grants per year in E05F, 2015–2025 - recent five years are up 23% versus 2015–2019.

Julius Blum

98
Aisin Seiki

87
Magna Closures

81
The Chamberlain Group

77
Assa Abloy Entrance…

77
Schlage Lock

52
Brose Fahrzeugteile…

51
Brose Fahrzeugteile &…

50
Mitsuba

47
Aisin

43
Overhead Door

42
Brose Fahrzeugteile &…

41

What this shows Ford Global is the most active filer in E05F, holding 254 of the 5,529 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 E05F
Rank	Company	Patents in E05F
#1	Julius Blum GMBH	98
#2	Aisin Seiki Kabushiki Kaisha	87
#3	Magna Closures Inc.	81
#4	The Chamberlain Group LLC	77
#5	Assa Abloy Entrance Systems AB	77
#6	Schlage Lock Company LLC	52
#7	Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Bamberg	51
#8	Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft	50
#9	Mitsuba Corporation	47
#10	Aisin Corporation	43
#11	Overhead Door Corporation	42
#12	Brose Fahrzeugteile GmbH & Co. KG, Hallstadt	41
#13	Stabilus GmbH	38
#14	Mitsui Kinzoku ACT Corporation	34
#15	Dormakaba Deutschland GMBH	30
#16	BSH Hausgeräte GmbH	28
#17	Hi-lex Corporation	27
#18	Kiekert AG	25
#19	Huf Hülsbeck & Fürst GmbH & Co. KG	25
#20	Shiroki Corporation	25

Footprint here vs. claim strategy

Each dot is a leading E05F 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 E05F assignees by class footprint. Bubble size = patents in E05F. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Classes near E05F's 5,529-grant footprint

Nationwide nearest neighbors for E05F (#243 of 670 by volume ; lead share 4.6%) - not the E05 parent-class siblings above.

Nearest by grant volume

F02K 5,533 B64F 5,518 B81C 5,547 D10B 5,422

Nearest by lead-assignee share

C07F 4.6% G06Q 4.6% A45C 4.6% B25J 4.6%

Questions about E05F

Which company holds the most patents in E05F?

Ford Global Technologies, LLC leads E05F with 254 patents (1.8% of the subclass). By PatentsView assignee type, foreign corporations account for 64% of class grants.

Which E05F assignees grew fastest recently?

Among assignees with ≥5 grants in E05F, Aisin Corporation shows the highest company-wide grant multiple (50x: 9 grants in 2019–2021 → 447 in 2022–2024) while holding 43 patents in this subclass. Growth is company-wide, not class-only.

How does E05F compare inside parent class E05?

Inside E05 (LOCKS; KEYS; Window OR Door FITTINGS; Safes), E05F ranks #3 of 6 subclasses by grant volume and holds 17.9% of the parent class total. The largest sibling is E05B (9,176 grants).

What to do with this data

E05F in context - here's where to go next.

Julius Blum GMBH leads E05F with 98 grants in this class. See full portfolio
E05F ranks #243 of 670 by grant volume among all tracked CPC technology areas. See the ranking
Inside parent class E05, the largest sibling subclass is E05B with 9,176 grants. Explore E05B

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

Methodology - E05F figures are USPTO PatentsView granted-utility totals for this subclass (5,529 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.