Patent holdings for IPC class C01B 32/05

Total number of patents in this class: 1747

10-year publication summary

41
131
127
138
155
182
208
214
264
135
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Guangdong Brunp Recycling Technology Co., Ltd
1157
37
Hunan Brunp Recycling Technology Co., Ltd.
1125
37
LG Chem, Ltd.
17526
30
Kuraray Co., Ltd.
3489
30
LG Energy Solution, Ltd.
14166
23
Toray Industries, Inc.
6865
20
Monolith Materials, Inc.
126
19
Group14 Technologies, Inc.
103
17
Nisshinbo Holdings Inc.
365
17
Carbon Technology Holdings, LLC
207
17
Stora Enso Oyj
1597
15
Carbon Holdings Intellectual Properties, LLC
59
15
Hunan Brunp EV Recycling Co., Ltd.
370
12
Contemporary Amperex Technology (Hong Kong) Limited
3312
12
Sumitomo Electric Industries, Ltd.
15277
10
Showa Denko K.K.
2281
10
Asahi Kasei Kabushiki Kaisha
2633
10
Kureha Corporation
1018
10
BASF SE
20694
9
The Regents of the University of California
19780
9
Other owners 1388