Patent holdings for IPC class C01G 19/00

Total number of patents in this class: 397

10-year publication summary

27
26
35
20
22
22
13
21
16
15
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Mitsubishi Materials Corporation
2472
19
Mitsubishi Gas Chemical Company, Inc.
3622
12
Semiconductor Energy Laboratory Co., Ltd.
11821
11
Kyodo Printing Co., Ltd.
149
10
Nikon Corporation
7228
9
Mitsubishi Materials Electronic Chemicals Co., Ltd.
139
9
E. I. du Pont de Nemours and Company
3534
7
Murata Manufacturing Co., Ltd.
25744
7
Tohoku University
2980
7
Nanoco Technologies Ltd.
143
6
LG Chem, Ltd.
17921
5
Toyota Motor Corporation
35772
5
FUJIFILM Corporation
30514
5
Shin-Etsu Chemical Co., Ltd.
6096
5
NGK Insulators, Ltd.
5236
5
Mitsui Mining & Smelting Co., Ltd.
1100
5
Dowa Electronics Materials Co., Ltd.
635
4
Kyoto University
2904
4
Sumitomo Metal Mining Co., Ltd.
1974
4
Samsung Electronics Co., Ltd.
157719
3
Other owners 255