Patent holdings for IPC class C07C 31/04

Total number of patents in this class: 861

10-year publication summary

45
59
43
57
53
51
70
75
90
5
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Topsoe A/S
979
46
L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
4002
31
SABIC Global Technologies B.V.
4432
27
Johnson Matthey Davy Technologies Limited
432
26
NGK Insulators, Ltd.
5174
22
Haldor Topsøe A/S
641
21
BASF SE
21120
17
Casale SA
635
16
Sumitomo Chemical Company, Limited
9120
14
Mitsubishi Gas Chemical Company, Inc.
3531
14
Mitsubishi Heavy Industries, Ltd.
8937
12
University of Southern California
2123
12
Mitsui Chemicals, Inc.
3236
10
Eastman Chemical Company
2103
10
Johnson Matthey Public Limited Company
1769
10
Linde GmbH
1294
10
Chevron Phillips Chemical Company LP
1855
9
Gascontec GmbH
38
9
Uop LLC
4259
8
ThyssenKrupp AG
3376
8
Other owners 529