Patent holdings for IPC class C01G 23/047

Total number of patents in this class: 677

10-year publication summary

56
45
37
38
22
31
28
28
20
4
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Toshiba Corporation
12537
12
Tronox LLC
156
12
Ishihara Sangyo Kaisha, Ltd.
669
10
Samsung Electronics Co., Ltd.
151485
8
E. I. du Pont de Nemours and Company
3767
8
Kronos International, Inc.
113
8
HHeLi, LLC
73
8
Panasonic Intellectual Property Management Co., Ltd.
32983
7
The Chemours Company Fc, LLC
1296
7
LG Chem, Ltd.
17737
6
Commissariat à l'énergie atomique et aux energies alternatives
10979
6
Sakai Chemical Industry Co., Ltd.
274
6
The Regents of the University of California
20378
5
DIC Corporation
3890
5
FUJIFILM Corporation
30034
4
Samsung Electro-mechanics Co., Ltd.
5756
4
NGK Insulators, Ltd.
5205
4
Cristal USA Inc.
15
4
Drexel University
1016
4
Innovnano-materiais Avancados, S.A.
9
4
Other owners 545