Patent holdings for IPC class C01B 3/22

Total number of patents in this class: 461

10-year publication summary

24
37
27
21
26
31
42
39
54
30
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
BP p.l.c.
540
21
Commissariat à l'énergie atomique et aux energies alternatives
11137
13
Hydrogenious Lohc Technologies GmbH
63
13
National Institute of Advanced Industrial Science and Technology
3791
9
King Abdullah University of Science and Technology
1874
7
Dens B.V.
18
7
Nitto Denko Corporation
8640
6
Korea Institute of Science and Technology
2267
6
Element 1 Corp.
43
6
IFP Energies Nouvelles
3125
6
Linde Aktiengesellschaft
1410
6
SABIC Global Technologies B.V.
4632
6
BASF SE
21334
5
Air Products and Chemicals, Inc.
1476
5
Yissum Research Development Company of The Hebrew University of Jerusalem Ltd.
1361
5
Haldor Topsøe A/S
629
5
New Wave Hydrogen, Inc.
14
5
Topsoe A/S
1080
5
Shell Internationale Research Maatschappij B.V.
3378
4
University of Southern California
2152
4
Other owners 317