PlainPatent

CPC technology class · H01

H01G - Capacitors

Capacitors; capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices of the electrolytic type. 12,443 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

12,443
US patents granted
#10/14
in H01
3.1%
H01 class share
+0%
5-yr velocity

The verdict

According to USPTO PatentsView, Capacitors ranks #149 of 670 CPC technology areas - 12,443 US patents granted since 2015, with recorded grant volume up 0% over five years.

#149
of 670 CPC technology areas
12,443
US patents granted, 2015–2025
Samsung
leading assignee (1,528)
+0%
grant velocity, last 5 yrs

How H01G's grant cadence moved

Between 2020–2024, H01G recorded 5,430 grants versus 5,412 in 2015–2019 (+0% equal-window velocity). Across complete years, output peaked in 2019 at 1,236 grants and bottomed in 2015 at 939 (+32% peak-over-trough). Lead assignee Murata Manufacturing Co., Ltd. holds 10.0% of the class ; the top three share 16.6%.

Leaderboard read

H01G concentration, lead at 10.0%

Murata Manufacturing Co., Ltd. leads this historical grant record at 10.0% of H01G - foreign corporation assignees hold 76% of class grants (4,599 of 6,065). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share
10.0%

1,247 of 12,443 grants

Top three share
16.6%

of the class's recorded grants

Lead over #2
815

more grants than Taiyo Yuden Co., Ltd.

Where H01G sits inside H01

Among 14 subclasses in H01 (Electric Elements), H01G ranks #10 and holds 3.1% of the parent class's 406,481 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

H01L 165,178 H01M 63,620 H01R 35,523 H01Q 29,793 H01J 24,482 H01F 21,711 H01H 14,753 H01B 14,745

Rising assignees active in H01G

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 LG Energy Solution, Ltd. 770x 2 → 1,539 company-wide · 38 in H01G
  2. #2 Hitachi Energy Ltd 120x 0 → 120 company-wide · 9 in H01G
  3. #3 Kyocera AVX Components Corporation 100x 1 → 100 company-wide · 81 in H01G
  4. #4 Prime Planet Energy & Solutions, Inc. 92x 0 → 92 company-wide · 6 in H01G
  5. #5 Imam Mohammad IBN Saud Islamic University 27x 0 → 27 company-wide · 7 in H01G

H01G grants by year, peak 2019 (1,236)

US utility-patent grants per year in H01G, 2015–2025 - recent five years are up 0% versus 2015–2019.

8009001,0001,1001,2001,300 20152016201720182019202020212022202320242025 849

Who leads H01G?

The 12 most active assignees in CAPACITORS; Capacitors, Rectifiers, Detectors, Switching Devices, Light-sensitive OR Temperature-sensitive Devices OF THE Electrolytic Type - wider bars mean more grants

patents

What this shows Samsung is the most active filer in H01G, holding 1,528 of the 12,443 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 H01G
Rank Company Patents in H01G
#1 Murata Manufacturing Co., Ltd. 1,247
#2 Taiyo Yuden Co., Ltd. 432
#3 TDK Corporation 389
#4 Panasonic Intellectual Property Management Co., Ltd. 378
#5 GS Yuasa International Ltd. 170
#6 AVX Corporation 145
#7 Kemet Electronics Corporation 134
#8 Greatbatch Ltd. 82
#9 Kyocera AVX Components Corporation 81
#10 Nippon Chemi-Con Corporation 81
#11 Sumitomo Wiring Systems, Ltd. 74
#12 Kabushiki Kaisha Toyota Jidoshokki 74
#13 Autonetworks Technologies, Ltd. 72
#14 Pacesetter, Inc. 55
#15 TDK Electronics AG 48
#16 Nanotek Instruments Group, LLC 47
#17 Epcos AG 46
#18 Showa Denko K.K. 42
#19 Apaq Technology Co., Ltd. 42
#20 Asahi Kasei Kabushiki Kaisha 39

Footprint here vs. claim strategy

Each dot is a leading H01G 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 H01G assignees by class footprint. Bubble size = patents in H01G. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 010203040 -500050010001500 Patents in H01G Avg claims / patent (company-wide) Murata ManufacturingTaiyo YudenTdkPanasonic Intellectual…Gs Yuasa InternationalAvxKemetGreatbatchKyocera Avx ComponentsNippon Chemi-conSumitomo Wiring…Toyota JidoshokkiAutonetworksPacesetter
Top 14 H01G assignees by class footprint. Bubble size = patents in H01G. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Classes near H01G's 12,443-grant footprint

Nationwide nearest neighbors for H01G (#149 of 670 by volume ; lead share 12.3%) - not the H01 parent-class siblings above.

Nearest by grant volume

A01H 12,482 Y04S 12,488 C01P 12,347 G09B 12,324

Nearest by lead-assignee share

B60D 12.3% D21F 12.4% F42C 12.4% G06G 12.1%

Questions about H01G

Which company holds the most patents in H01G?
Samsung Electronics Co., Ltd. leads H01G with 1,528 patents (10.0% of the subclass). By PatentsView assignee type, foreign corporations account for 76% of class grants.
Which H01G assignees grew fastest recently?
Among assignees with ≥5 grants in H01G, LG Energy Solution, Ltd. shows the highest company-wide grant multiple (770x: 2 grants in 2019–2021 → 1,539 in 2022–2024) while holding 38 patents in this subclass. Growth is company-wide, not class-only.
How does H01G compare inside parent class H01?
Inside H01 (Electric Elements), H01G ranks #10 of 14 subclasses by grant volume and holds 3.1% of the parent class total. The largest sibling is H01L (165,178 grants).

What to do with this data

H01G in context - here's where to go next.

  • Murata Manufacturing Co., Ltd. leads H01G with 1,247 grants in this class. See full portfolio
  • H01G ranks #149 of 670 by grant volume among all tracked CPC technology areas. See the ranking
  • Inside parent class H01, the largest sibling subclass is H01L with 165,178 grants. Explore H01L

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

Methodology - H01G figures are USPTO PatentsView granted-utility totals for this subclass (12,443 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.