Patent holdings for IPC class C01G 23/047

Total number of patents in this class: 675

10-year publication summary

59
49
41
42
24
31
30
28
20
10
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Toshiba Corporation
12560
12
Tronox LLC
154
12
Samsung Electronics Co., Ltd.
157719
8
E. I. du Pont de Nemours and Company
3534
8
The Chemours Company Fc, LLC
1341
8
HHeLi, LLC
75
8
Panasonic Intellectual Property Management Co., Ltd.
33997
7
Kronos International, Inc.
113
7
LG Chem, Ltd.
17921
6
Commissariat à l'énergie atomique et aux energies alternatives
11123
6
DIC Corporation
3962
6
Ishihara Sangyo Kaisha, Ltd.
659
6
Sakai Chemical Industry Co., Ltd.
282
6
The Regents of the University of California
20745
5
FUJIFILM Corporation
30514
4
Samsung Electro-mechanics Co., Ltd.
6083
4
NGK Insulators, Ltd.
5236
4
Cristal USA Inc.
15
4
Drexel University
1001
4
Innovnano-materiais Avancados, S.A.
9
4
Other owners 546