Patent holdings for IPC class C01B 39/48

Total number of patents in this class: 1347

10-year publication summary

97
118
111
119
86
80
65
60
35
10
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.
4050
254
ExxonMobil Research And Engineering Company
2497
73
BASF SE
21146
61
ExxonMobil Chemical Patents Inc.
3889
60
Johnson Matthey Public Limited Company
1737
56
NGK Insulators, Ltd.
5205
52
ExxonMobil Technology and Engineering Company
1239
51
IFP Energies Nouvelles
3006
48
Uop LLC
4275
46
Tosoh Corporation
1355
40
Saudi Arabian Oil Company
13865
37
China Petroleum & Chemical Corporation
2002
28
Universidad Politecnica de Valencia
556
28
Mitsubishi Chemical Corporation
4671
25
BASF Corporation
1695
24
BASF Mobile Emissions Catalysts LLC
426
24
California Institute of Technology
4015
23
Consejo Superior de Investigaciones Cientificas (csic)
1416
17
Consejo Superior de Investigaciones Cientificas
840
15
Shanghai Research Institute of Petrochemical Technology Sinopec
266
14
Other owners 371