Patent holdings for IPC class C01B 3/26

Total number of patents in this class: 802

10-year publication summary

30
26
22
26
49
65
71
69
79
57
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Saudi Arabian Oil Company
14248
26
Chiyoda Corporation
423
20
Air Products and Chemicals, Inc.
1474
17
BASF SE
21308
14
Mitsubishi Heavy Industries, Ltd.
9139
14
Chevron U.S.A. Inc.
4136
12
Uop LLC
4393
11
Hazer Group Ltd
19
11
Mitsubishi Power, Ltd.
1834
11
Battelle Memorial Institute
2601
10
Aramco Services Company
4196
10
JX Nippon Oil & Energy Corporation
978
9
ENEOS Corporation
697
9
The Regents of the University of California
20778
8
IFP Energies Nouvelles
3095
8
SABIC Global Technologies B.V.
4599
8
Hindustan Petroleum Corporation Limited
228
7
Ihara & Company Ltd.
7
7
The Japan Steel Works, Ltd.
826
7
Kellogg Brown & Root LLC
526
7
Other owners 576