Patent holdings for IPC class B01J 23/44

Total number of patents in this class: 2461

10-year publication summary

197
194
207
175
185
177
199
152
156
11
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
1852
172
Umicore AG & Co. KG
860
117
BASF Corporation
1823
84
Cataler Corporation
563
76
Toyota Motor Corporation
30455
67
BASF Mobile Emissions Catalysts LLC
257
63
BASF SE
20432
35
Uop LLC
4188
33
Chevron U.S.A. Inc.
3856
29
N.E. Chemcat Corporation
187
28
IFP Energies Nouvelles
2829
27
Mitsui Mining & Smelting Co., Ltd.
1426
22
Shell Internationale Research Maatschappij B.V.
3722
20
DSM IP Assets B.V.
5802
19
Umicore Shokubai Japan Co., Ltd.
78
19
LG Chem, Ltd.
17639
18
Dow Global Technologies LLC
10156
18
GM Global Technology Operations LLC
14260
17
China Petroleum & Chemical Corporation
1783
17
Clariant International Ltd.
954
17
Other owners 1563