Patent holdings for IPC class B01J 33/00

Total number of patents in this class: 283

10-year publication summary

23
28
21
14
14
17
15
11
14
5
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
1844
16
BASF Corporation
1717
12
Ibiden Co., Ltd.
1712
8
IFP Energies Nouvelles
2942
8
Clariant International Ltd.
940
6
BASF Mobile Emissions Catalysts LLC
398
6
BASF SE
20892
5
Reactor Resources, LLC
7
5
Tanaka Kikinzoku Kogyo K.K.
585
5
GM Global Technology Operations LLC
14937
4
NGK Insulators, Ltd.
4944
4
Eurecat S.A.
88
4
Korea Institute of Energy Research
849
4
Mitsui Mining & Smelting Co., Ltd.
1477
4
Evonik Operations GmbH
4083
4
IQatalyst B.V.
14
4
Aramco Services Company
3929
3
BASF Nederland B.V.
5
3
BP p.l.c.
520
3
Chiyoda Corporation
395
3
Other owners 172