Patent holdings for IPC class B01J 23/28

Total number of patents in this class: 961

10-year publication summary

62
78
67
63
54
50
54
33
52
4
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
NOVA Chemicals (International) S.A.
789
48
Shell Internationale Research Maatschappij B.V.
3507
34
IFP Energies Nouvelles
3007
27
Shell Oil Company
2114
26
Saudi Arabian Oil Company
13839
24
Asahi Kasei Chemicals Corporation
594
21
LG Chem, Ltd.
17744
20
Chevron U.S.A. Inc.
4040
19
Shell USA, Inc.
1275
18
Uop LLC
4275
16
BASF SE
21149
15
Mitsubishi Heavy Industries, Ltd.
8962
13
Nova Chemicals Corporation
330
11
Mitsubishi Power, Ltd.
1817
11
ExxonMobil Research And Engineering Company
2498
10
Korea Institute of Energy Research
871
10
Dow Global Technologies LLC
10699
8
Asahi Kasei Kabushiki Kaisha
2742
8
SABIC Global Technologies B.V.
4449
8
Shin-Etsu Chemical Co., Ltd.
5856
7
Other owners 607