- All sections
- H - Electricity
- H01M - Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy
- H01M 4/88 - Processes of manufacture
Patent holdings for IPC class H01M 4/88
Total number of patents in this class: 3925
10-year publication summary
285
|
259
|
270
|
302
|
217
|
269
|
269
|
281
|
266
|
77
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Hyundai Motor Company | 19021 |
116 |
Toyota Motor Corporation | 28582 |
107 |
TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 13301 |
99 |
Toray Industries, Inc. | 6652 |
76 |
Nissan Motor Co., Ltd. | 12249 |
74 |
Kia Motors Corporation | 7946 |
67 |
Robert Bosch GmbH | 40953 |
63 |
Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
54 |
3m Innovative Properties Company | 18406 |
52 |
LG Chem, Ltd. | 17205 |
50 |
Audi AG | 7153 |
47 |
Kolon Industries, Inc. | 1506 |
47 |
Cataler Corporation | 533 |
36 |
Johnson Matthey Hydrogen Technologies Limited | 83 |
36 |
Showa Denko K.K. | 2539 |
35 |
Honda Motor Co., Ltd. | 24537 |
34 |
LG Energy Solution, Ltd. | 10813 |
32 |
GM Global Technology Operations LLC | 13620 |
31 |
Korea Institute of Science and Technology | 2022 |
31 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
30 |
Other owners | 2808 |