Patent holdings for IPC class B01J 23/28

Total number of patents in this class: 904

10-year publication summary

65
51
66
81
69
66
57
53
52
14
2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

Principal owners for this class

Owner
All patents
This class
NOVA Chemicals (International) S.A.
717
38
Shell Internationale Research Maatschappij B.V.
3792
37
Shell Oil Company
2196
28
Saudi Arabian Oil Company
11322
23
Asahi Kasei Chemicals Corporation
809
22
IFP Energies Nouvelles
2717
22
LG Chem, Ltd.
17205
21
Shell USA, Inc.
1074
21
Chevron U.S.A. Inc.
3774
17
BASF SE
19740
16
Uop LLC
4083
15
Mitsubishi Heavy Industries, Ltd.
8217
12
ExxonMobil Research And Engineering Company
2830
11
Mitsubishi Power, Ltd.
1680
11
Arkema France
3790
10
Korea Institute of Energy Research
803
9
Centre National de La Recherche Scientifique
9632
8
Archer Daniels Midland Company
1164
8
Nova Chemicals Corporation
330
8
Shin-Etsu Chemical Co., Ltd.
5132
7
Other owners 560