CPC technology class · H02

H02N - Electric Machines

Electric machines not otherwise provided for. 3,799 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

Compiled by PlainPatent · May 15, 2026

3,799
US patents granted: #8/9
in H02: 2.4%
H02 class share: +15%
5-yr velocity

The verdict

According to USPTO PatentsView, Electric Machines ranks #279 of 670 CPC technology areas - 3,799 US patents granted since 2015, with recorded grant volume up 15% over five years.

#279
of 670 CPC technology areas: 3,799
US patents granted, 2015–2025: Canon
leading assignee (370): +15%
grant velocity, last 5 yrs

How H02N's grant cadence moved

Between 2020–2024, H02N recorded 1,799 grants versus 1,568 in 2015–2019 (+15% equal-window velocity). Across complete years, output peaked in 2022 at 395 grants and bottomed in 2015 at 254 (+56% peak-over-trough). Lead assignee Physik Instrumente (PI) GMBH & Co. KG holds 1.3% of the class ; the top three share 2.7%.

Leaderboard read

H02N concentration, lead at 1.3%

Physik Instrumente (PI) GMBH & Co. KG leads this historical grant record at 1.3% of H02N - foreign corporation assignees hold 61% of class grants (615 of 1,003). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share: 1.3%
Top three share: 2.7%
Lead over #2: 22

Where H02N sits inside H02

Among 9 subclasses in H02 (GENERATION; Conversion OR Distribution OF Electric Power), H02N ranks #8 and holds 2.4% of the parent class's 161,326 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

H02J 49,883 H02M 33,952 H02K 26,848 H02P 16,031 H02G 11,084 H02H 10,591 H02S 6,483 H02B 2,655

Rising assignees active in H02N

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 Shanghai University 7.80x 5 → 39 company-wide · 9 in H02N
#2 Mechano Transformer Corporation 7.00x 1 → 7 company-wide · 6 in H02N
#3 C-motive Technologies, Inc. 6.00x 1 → 6 company-wide · 11 in H02N
#4 Mems Drive (NANJING) Co., Ltd. 4.00x 3 → 12 company-wide · 15 in H02N
#5 Blue Laser Fusion, Inc. 3.00x 0 → 3 company-wide · 6 in H02N

H02N grants by year, peak 2022 (395)

US utility-patent grants per year in H02N, 2015–2025 - recent five years are up 15% versus 2015–2019.

Physik Instrumente…

49
Georgia Tech Research

27
Tdk Taiwan

27
Saginomiya Seisakusho

27
Sumitomo Osaka Cement

24
Mems Drive

18
Omnitek Partners

16
Mitsumi Electric

15
Mems Drive (Nanjing)

15
Digitaloptics Mems

14
Cairdac

14
Toto

13

What this shows Canon is the most active filer in H02N, holding 370 of the 3,799 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 H02N
Rank	Company	Patents in H02N
#1	Physik Instrumente (PI) GMBH & Co. KG	49
#2	Georgia Tech Research Corporation	27
#3	TDK Taiwan Corp.	27
#4	Saginomiya Seisakusho, Inc.	27
#5	Sumitomo Osaka Cement Co., Ltd.	24
#6	Mems Drive, Inc.	18
#7	Omnitek Partners LLC	16
#8	Mitsumi Electric Co., Ltd.	15
#9	Mems Drive (NANJING) Co., Ltd.	15
#10	DigitalOptics Corporation Mems	14
#11	Cairdac	14
#12	Toto Ltd.	13
#13	STMicroelectronics (Crolles 2) SAS	13
#14	Sumitomo Riko Company Limited	13
#15	Citizen Watch Co., Ltd.	12
#16	Face International Corporaton	12
#17	Korea Electronics Technology Institute	11
#18	Novelis Inc.	11
#19	C-motive Technologies, Inc.	11
#20	Calagen, Inc.	11

Footprint here vs. claim strategy

Each dot is a leading H02N 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 H02N assignees by class footprint. Bubble size = patents in H02N. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Classes near H02N's 3,799-grant footprint

Nationwide nearest neighbors for H02N (#279 of 670 by volume ; lead share 9.7%) - not the H02 parent-class siblings above.

Nearest by grant volume

E04C 3,792 G16Z 3,767 C10N 3,834 A01C 3,761

Nearest by lead-assignee share

D04H 9.7% B28C 9.8% F01B 9.7% B64B 9.6%

Questions about H02N

Which company holds the most patents in H02N?

Canon Kabushiki Kaisha leads H02N with 370 patents (1.3% of the subclass). By PatentsView assignee type, foreign corporations account for 61% of class grants.

Which H02N assignees grew fastest recently?

Among assignees with ≥5 grants in H02N, Shanghai University shows the highest company-wide grant multiple (7.80x: 5 grants in 2019–2021 → 39 in 2022–2024) while holding 9 patents in this subclass. Growth is company-wide, not class-only.

How does H02N compare inside parent class H02?

Inside H02 (GENERATION; Conversion OR Distribution OF Electric Power), H02N ranks #8 of 9 subclasses by grant volume and holds 2.4% of the parent class total. The largest sibling is H02J (49,883 grants).

What to do with this data

H02N in context - here's where to go next.

Physik Instrumente (PI) GMBH & Co. KG leads H02N with 49 grants in this class. See full portfolio
H02N ranks #279 of 670 by grant volume among all tracked CPC technology areas. See the ranking
Inside parent class H02, the largest sibling subclass is H02J with 49,883 grants. Explore H02J

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

Methodology - H02N figures are USPTO PatentsView granted-utility totals for this subclass (3,799 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.