Patent holdings for IPC class C04B 35/63

Total number of patents in this class: 705

10-year publication summary

83
91
81
39
58
38
34
51
37
26
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
NGK Insulators, Ltd.
5161
29
Saint-Gobain Centre de Recherches et d'Etudes Europeen
495
20
Refractory Intellectual Property GmbH & Co. KG
575
19
Refratechnik Holding GmbH
147
13
General Electric Company
14047
12
Baker Hughes Holdings LLC
3011
12
Corning Incorporated
10586
11
Sumitomo Electric Hardmetal Corp.
1106
10
Calderys France
60
9
Element Six Abrasives S.A.
144
9
Safran Ceramics
452
9
Diamond Innovations, Inc.
235
8
Ibiden Co., Ltd.
1695
7
The Penn State Research Foundation
1654
7
Tungaloy Corporation
542
7
Kyocera Corporation
14546
6
Shin-Etsu Chemical Co., Ltd.
6203
6
CARBO Ceramics Inc.
173
6
Denka Company Limited
2780
6
3m Innovative Properties Company
17465
5
Other owners 494