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  • C - Chemistrymetallurgy
  • C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
  • C04B 35/043 - Refractories from grain sized mixtures

Patent holdings for IPC class C04B 35/043

Total number of patents in this class: 139

10-year publication summary

10
9
10
6
12
6
6
4
8
5
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Refractory Intellectual Property GmbH & Co. KG
541
38
Refratechnik Holding GmbH
146
20
Krosakiharima Corporation
284
19
JFE Steel Corporation
6916
6
Nippon Steel Corporation
6334
3
Nippon Steel & Sumitomo Metal Corporation
1987
3
Shinagawa Refractories Co., Ltd.
53
3
Wuhan University of Science and Technology
66
3
Rozai Kogyo Kaisha, Ltd.
7
3
NGK Insulators, Ltd.
5016
2
Calix Ltd
93
2
Polar Sapphire Ltd.
11
2
Saint-Gobain Centre de Recherches et d'Etudes Europeen
493
2
Evonik Degussa GmbH
1493
1
TDK Corporation
6813
1
Kyocera Corporation
13909
1
Calderys France
53
1
Eth Zurich
1283
1
Harbisonwalker International, Inc.
206
1
Kerneos
32
1
Other owners 26

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