Patent holdings for IPC class C04B 35/20

Total number of patents in this class: 98

10-year publication summary

12
10
6
4
4
6
6
4
6
2
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Murata Manufacturing Co., Ltd.
24226
12
TDK Corporation
6653
8
Massachusetts Institute of Technology
9975
4
Refratechnik Holding GmbH
145
4
Unifrax I LLC
242
3
Hitachi Metals, Ltd.
1990
2
Applied Materials, Inc.
18334
2
Corning Incorporated
10184
2
Calderys France
50
2
Ilem Research and Development Establishment
2
2
NHK Spring Co., Ltd.
1812
2
Nissan Chemical Industries, Ltd.
1736
2
Refractory Intellectual Property GmbH & Co. KG
535
2
Walsin Technology Corp.
8
2
EM-TECH. Co., Ltd.
83
2
Razvojni center ENEM novi materiali d.o.o.
11
2
«NIKA-PETROTECH» Limited Liability Company
3
2
Jiaxing Glead Electronics Co., Ltd
13
2
Raytheon Technologies Corporation
173
2
General Electric Company
17062
1
Other owners 38