Patent holdings for IPC class C01B 39/48

Total number of patents in this class: 1370

10-year publication summary

101
122
117
126
91
88
70
62
38
29
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Chevron U.S.A. Inc.
4117
260
ExxonMobil Research And Engineering Company
2458
72
BASF SE
21165
60
ExxonMobil Chemical Patents Inc.
3811
58
Johnson Matthey Public Limited Company
1761
56
ExxonMobil Technology and Engineering Company
1297
55
NGK Insulators, Ltd.
5223
52
IFP Energies Nouvelles
3041
48
Uop LLC
4330
45
Tosoh Corporation
1389
43
Saudi Arabian Oil Company
13956
38
China Petroleum & Chemical Corporation
2095
32
Universidad Politecnica de Valencia
553
27
Mitsubishi Chemical Corporation
4665
25
BASF Mobile Emissions Catalysts LLC
429
25
BASF Corporation
1681
24
California Institute of Technology
4023
23
Consejo Superior de Investigaciones Cientificas (csic)
1431
17
Aramco Services Company
4162
14
Consejo Superior de Investigaciones Cientificas
812
14
Other owners 382