Patent holdings for IPC class B01J 23/44

Total number of patents in this class: 2519

10-year publication summary

197
194
207
175
185
177
203
157
161
66
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
1850
177
Umicore AG & Co. KG
856
115
Cataler Corporation
573
85
BASF Mobile Emissions Catalysts LLC
400
79
BASF Corporation
1726
74
Toyota Motor Corporation
31903
67
BASF SE
20912
36
Uop LLC
4244
33
Chevron U.S.A. Inc.
3951
30
N.E. Chemcat Corporation
188
28
IFP Energies Nouvelles
2945
27
Mitsui Mining & Smelting Co., Ltd.
1478
23
Umicore Shokubai Japan Co., Ltd.
78
20
DSM IP Assets B.V.
5595
19
LG Chem, Ltd.
17615
18
Shell Internationale Research Maatschappij B.V.
3551
18
Honeywell International Inc.
13531
18
China Petroleum & Chemical Corporation
1894
18
Clariant International Ltd.
940
18
GM Global Technology Operations LLC
15000
17
Other owners 1599