Patent holdings for IPC class C01B 3/44

Total number of patents in this class: 65

10-year publication summary

6
4
3
3
8
3
6
6
6
1
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
SK Innovation Co., Ltd.
1505
4
Totalenergies Onetech
1551
4
Gas Technology Institute
331
3
Saudi Arabian Oil Company
14398
3
ThermoChem Recovery International, Inc.
97
3
IFP Energies Nouvelles
3125
2
The Japan Steel Works, Ltd.
883
2
National University Corporation Kitami Institute of Technology
23
2
Petroleo Brasileiro S.A. - Petrobras
980
2
Total SA
475
2
ZEG Power AS
29
2
Radical Plastics Inc.
14
2
TotalEnergies SE
552
2
Pure Sustainable Technologies, LLC
2
2
Carbon Engineering ULC
83
2
OMC Hydrogen, Inc.
4
2
The Board of Trustees of the Leland Stanford Junior University
6724
1
Uop LLC
4407
1
1304338 Alberta Ltd.
94
1
Aramco Services Company
4190
1
Other owners 22