Patent holdings for IPC class B01J 23/02

Total number of patents in this class: 959

10-year publication summary

71
60
67
46
46
42
59
64
55
39
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Johnson Matthey Public Limited Company
1858
51
BASF Mobile Emissions Catalysts LLC
404
33
Umicore AG & Co. KG
856
25
LG Chem, Ltd.
17638
23
SABIC Global Technologies B.V.
4344
21
BASF Corporation
1717
18
BASF SE
20915
16
NGK Insulators, Ltd.
4964
15
China Petroleum & Chemical Corporation
1908
14
Toyota Motor Corporation
32231
12
Saudi Arabian Oil Company
13185
11
Lummus Technology LLC
441
9
Japan Science and Technology Agency
1321
8
Centre National de La Recherche Scientifique
10432
7
Uop LLC
4244
7
Clariant International Ltd.
935
7
Petroleo Brasileiro S.A. - Petrobras
849
7
Samsung Electronics Co., Ltd.
146346
6
Shell Internationale Research Maatschappij B.V.
3537
6
ExxonMobil Research And Engineering Company
2572
6
Other owners 657