Patent holdings for IPC class C01G 25/02

Total number of patents in this class: 686

10-year publication summary

43
49
56
34
39
52
55
41
37
8
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Daiichi Kigenso Kagaku Kogyo Co., Ltd.
178
35
Rhodia Operations
1505
21
3m Innovative Properties Company
17485
20
Kuraray Noritake Dental Inc.
461
20
Tosoh Corporation
1405
20
Sumitomo Osaka Cement Co., Ltd.
887
15
HHeLi, LLC
75
13
Sakai Chemical Industry Co., Ltd.
281
11
NGK Insulators, Ltd.
5228
10
Magnesium Elektron Limited
82
10
Corning Incorporated
10488
9
Nippon Shokubai Co., Ltd.
1532
9
Essilor International (compagnie Generale D'optique)
2991
8
Saint-Gobain Centre de Recherches et d'Etudes Europeen
494
8
Shandong Sinocera Functional Material Co., Ltd.
49
7
Fujimi Incorporated
801
6
Ivoclar Vivadent AG
1049
6
Saint-Gobain Ceramics & Plastics, Inc.
803
6
Tohoku University
2956
6
BASF SE
21294
4
Other owners 442