Patent holdings for IPC class C01B 3/26

Total number of patents in this class: 759

10-year publication summary

29
25
18
24
44
55
66
64
76
16
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Saudi Arabian Oil Company
13904
25
Chiyoda Corporation
411
20
Air Products and Chemicals, Inc.
1461
17
BASF SE
21131
13
Mitsubishi Heavy Industries, Ltd.
8995
13
Uop LLC
4285
11
Chevron U.S.A. Inc.
4073
10
Battelle Memorial Institute
2540
10
Mitsubishi Power, Ltd.
1818
10
Aramco Services Company
4158
9
Hazer Group Ltd
17
9
JX Nippon Oil & Energy Corporation
978
9
SABIC Global Technologies B.V.
4468
8
The Regents of the University of California
20447
7
ExxonMobil Research And Engineering Company
2492
7
Hindustan Petroleum Corporation Limited
221
7
Ihara & Company Ltd.
7
7
The Japan Steel Works, Ltd.
785
7
National University Corporation Kitami Institute of Technology
24
7
Nederlandse Organisatie voor Toegepast-natuurwetenschappelijk Onderzoek TNO
2403
7
Other owners 546