Patent holdings for IPC class B01J 31/38

Total number of patents in this class: 248

10-year publication summary

21
19
26
22
9
10
11
15
11
6
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Chevron Phillips Chemical Company LP
1864
21
Braskem America, Inc.
243
11
Univation Technologies, LLC
611
9
LG Chem, Ltd.
17956
7
FUJIFILM Business Innovation Corp.
7970
6
China Petroleum & Chemical Corporation
2169
5
ExxonMobil Chemical Patents Inc.
3766
4
King Faisal University
934
4
Sinopec Yangzi Petrochemical Company Ltd.
19
4
Dow Corning Corporation
873
3
Soochow University
1787
3
Tianjin University
912
3
W. R. Grace & Co.-Conn.
299
3
GM Global Technology Operations LLC
16205
2
Shin-Etsu Chemical Co., Ltd.
6127
2
Saudi Basic Industries Corporation
524
2
Mitsui Chemicals, Inc.
3262
2
Northwestern University
3564
2
AM Technology Limited
8
2
Basell Poliolefine Italia S.r.l.
944
2
Other owners 151