Patent holdings for IPC class C01B 3/22

Total number of patents in this class: 453

10-year publication summary

24
37
27
21
26
31
42
39
51
25
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
BP p.l.c.
539
19
Commissariat à l'énergie atomique et aux energies alternatives
11118
13
Hydrogenious Lohc Technologies GmbH
62
13
National Institute of Advanced Industrial Science and Technology
3787
9
King Abdullah University of Science and Technology
1841
7
Dens B.V.
18
7
Nitto Denko Corporation
8516
6
Korea Institute of Science and Technology
2246
6
Element 1 Corp.
42
6
IFP Energies Nouvelles
3094
6
Linde Aktiengesellschaft
1428
6
SABIC Global Technologies B.V.
4570
6
Topsoe A/S
1034
6
BASF SE
21292
5
Air Products and Chemicals, Inc.
1468
5
Yissum Research Development Company of The Hebrew University of Jerusalem Ltd.
1343
5
Haldor Topsøe A/S
636
5
New Wave Hydrogen, Inc.
14
5
Shell Internationale Research Maatschappij B.V.
3409
4
University of Southern California
2132
4
Other owners 310