PlainPatent

CPC technology class · H01

H01M - Processes Or Means

Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy. 63,620 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

63,620
US patents granted
#2/14
in H01
15.7%
H01 class share
+21%
5-yr velocity

The verdict

According to USPTO PatentsView, Processes Or Means ranks #22 of 670 CPC technology areas - 63,620 US patents granted since 2015, with recorded grant volume up 21% over five years.

#22
of 670 CPC technology areas
63,620
US patents granted, 2015–2025
Samsung
leading assignee (3,657)
+21%
grant velocity, last 5 yrs

How H01M's grant cadence moved

Between 2020–2024, H01M recorded 28,828 grants versus 23,808 in 2015–2019 (+21% equal-window velocity). Across complete years, output peaked in 2024 at 6,323 grants and bottomed in 2016 at 4,256 (+49% peak-over-trough). Lead assignee Samsung Electronics Co., Ltd. holds 5.7% of the class ; the top three share 14.3%.

Leaderboard read

H01M concentration, lead at 5.7%

Samsung Electronics Co., Ltd. leads this historical grant record at 5.7% of H01M - foreign corporation assignees hold 76% of class grants (39,886 of 52,371). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share
5.7%

3,657 of 63,620 grants

Top three share
14.3%

of the class's recorded grants

Lead over #2
560

more grants than Toyota Jidosha Kabushiki Kaisha

Where H01M sits inside H01

Among 14 subclasses in H01 (Electric Elements), H01M ranks #2 and holds 15.7% 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 H01R 35,523 H01Q 29,793 H01J 24,482 H01F 21,711 H01H 14,753 H01B 14,745 H01S 12,879

Rising assignees active in H01M

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 · 2,086 in H01M
  2. #2 Exxon Mobil Technology and Engineering Company 298x 0 → 298 company-wide · 20 in H01M
  3. #3 Huawei Digital Power Technologies Co., Ltd. 245x 0 → 245 company-wide · 14 in H01M
  4. #4 SK On Co., Ltd. 243x 0 → 243 company-wide · 331 in H01M
  5. #5 NIO Technology (ANHUI) Co., Ltd 121x 0 → 121 company-wide · 16 in H01M

H01M grants by year, peak 2024 (6,323)

US utility-patent grants per year in H01M, 2015–2025 - recent five years are up 21% versus 2015–2019.

4,0004,5005,0005,5006,0006,500 20152016201720182019202020212022202320242025 5,044

Who leads H01M?

The 12 most active assignees in Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy - wider bars mean more grants

patents

What this shows Samsung is the most active filer in H01M, holding 3,657 of the 63,620 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 H01M
Rank Company Patents in H01M
#1 Samsung Electronics Co., Ltd. 3,657
#2 Toyota Jidosha Kabushiki Kaisha 3,097
#3 LG Chem, Ltd. 2,369
#4 LG Energy Solution, Ltd. 2,086
#5 Hyundai Motor Company 1,418
#6 Panasonic Intellectual Property Management Co., Ltd. 1,278
#7 Honda Motor Co., Ltd. 1,185
#8 Robert Bosch GmbH 1,074
#9 GM Global Technology Operations LLC 1,029
#10 Contemporary Amperex Technology Co., Limited 863
#11 Ford Global Technologies, LLC 800
#12 KIA Motors Corporation 701
#13 Nissan Motor Co., Ltd. 661
#14 GS Yuasa International Ltd. 573
#15 Sanyo Electric Co., Ltd. 534
#16 Murata Manufacturing Co., Ltd. 512
#17 Kabushiki Kaisha Toshiba 500
#18 Semiconductor Energy Laboratory Co., Ltd. 456
#19 Audi AG 387
#20 Sumitomo Electric Industries, Ltd. 374

Footprint here vs. claim strategy

Each dot is a leading H01M 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 H01M assignees by class footprint. Bubble size = patents in H01M. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 681012141618 01000200030004000 Patents in H01M Avg claims / patent (company-wide) SamsungToyota JidoshaLg ChemLg Energy SolutionHyundai MotorPanasonic Intellectual…Honda MotorRobert BoschGm Global Technology…Contemporary Amperex…Ford GlobalKia MotorsNissan MotorGs Yuasa International
Top 14 H01M assignees by class footprint. Bubble size = patents in H01M. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Classes near H01M's 63,620-grant footprint

Nationwide nearest neighbors for H01M (#22 of 670 by volume ; lead share 5.7%) - not the H01 parent-class siblings above.

Nearest by grant volume

G09G 62,527 H05K 62,449 Y02P 65,929 C12N 68,530

Nearest by lead-assignee share

H01Q 5.8% H03F 5.7% B62B 5.7% C23G 5.8%

Questions about H01M

Which company holds the most patents in H01M?
Samsung Electronics Co., Ltd. leads H01M with 3,657 patents (5.7% of the subclass). By PatentsView assignee type, foreign corporations account for 76% of class grants.
Which H01M assignees grew fastest recently?
Among assignees with ≥5 grants in H01M, LG Energy Solution, Ltd. shows the highest company-wide grant multiple (770x: 2 grants in 2019–2021 → 1,539 in 2022–2024) while holding 2,086 patents in this subclass. Growth is company-wide, not class-only.
How does H01M compare inside parent class H01?
Inside H01 (Electric Elements), H01M ranks #2 of 14 subclasses by grant volume and holds 15.7% of the parent class total. The largest sibling is H01L (165,178 grants).

What to do with this data

H01M in context - here's where to go next.

  • Samsung Electronics Co., Ltd. leads H01M with 3,657 grants in this class. See full portfolio
  • H01M ranks #22 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 - H01M figures are USPTO PatentsView granted-utility totals for this subclass (63,620 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.