Patent landscape

Battery Thermal Management Supplier Landscape

A view of who is investing in battery cooling, heating, and thermal control IP, and who files globally. For sales and BD teams selling into battery pack, BESS, and EV programs: use the ranking to see where cell makers, OEMs, and tier-1 thermal specialists are concentrating R&D, and where that activity crosses borders.

Companies tracked

Distinct assignees with at least one international patent family in this segment.

Top company

LG Energy Solution

1,631 international families, filing across 16 offices.

Top 5 share of top 25

51%

Share of international families among the top 25 held by the top 5 filers.

Top 25 by international patent families

International family counts first, since those are what travel across markets. “Since 2018” and “Since 2023” are all families (international plus single-office) first filed on or after that year.

#	Company	HQ	Intl families	Since 2018	Since 2023	Filing offices	Intl share
1	LG Energy Solution	South Korea	1,631	2,537	1,307	16	64%
2	CATL	China	1,070	2,653	1,841	17	40%
3	Toyota Motor	Japan	671	1,080	514	12	62%
4	Samsung SDI	South Korea	512	626	419	9	82%
5	Hyundai Motor Group (incl. Kia)	South Korea	407	484	194	7	84%
6	Ford Global Technologies	United States	389	453	237	9	86%
7	SK On	South Korea	337	519	298	9	65%
8	General Motors	United States	334	358	205	4	93%
9	BYD	China	299	1,514	882	21	20%
10	Honda Motor	Japan	297	370	101	11	80%
11	Valeo Systemes Thermiques	France	250	372	97	8	67%
12	EVE Energy	China	219	828	282	16	26%
13	Bosch	Germany	197	340	84	12	58%
14	SK Energy	South Korea	192	195	88	9	98%
15	Panasonic	Japan	185	264	97	9	70%
16	Audi	Germany	184	514	206	8	36%
17	Huawei	China	180	315	186	12	57%
18	BMW	Germany	178	588	180	7	30%
19	Denso	Japan	142	259	35	8	55%
20	Volkswagen	Germany	132	339	95	9	39%
21	MAHLE	Germany	128	242	94	8	53%
22	Huizhou EVE Energy	China	123	674	638	11	18%
23	LG New Energy	South Korea	109	109	0	12	100%
24	Porsche	Germany	108	535	281	16	20%
25	Subaru	Japan	99	155	45	6	64%

Methodology

Patent families first filed in 2018 or later, matched on CPC or IPC codes. “International” means filed in two or more patent offices. Source is Google Patents Public Data via BigQuery.

Codes: CPC and IPC H01M10/6x (battery heating and cooling).

Companies are merged across name variants (for example, several spelling and romanization variants of the same assignee are rolled up into one row). Universities and government research bodies are excluded, so the ranking reflects commercial filers.

Rankings reflect patent activity, not revenue. A heavy filer may be protecting a research program that has not shipped, and a low filer may still be a dominant supplier.

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