- All sections
- C - Chemistry; metallurgy
- C04B - Lime; magnesia; slag; cements; compositions thereof, e.g. mortars, concrete or like building materials; artificial stone; ceramics; refractories; treatment of natural stone
- C04B 35/657 - Processes involving a melting step for manufacturing refractories
Patent holdings for IPC class C04B 35/657
Total number of patents in this class: 149
10-year publication summary
6
|
12
|
13
|
15
|
17
|
13
|
13
|
11
|
11
|
2
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Rolls-Royce High Temperature Composites, Inc. | 129 |
19 |
Saint-Gobain Centre de Recherches et d'Etudes Europeen | 475 |
17 |
Asahi Glass Company, Limited | 2985 |
10 |
General Electric Company | 18133 |
8 |
AGC Ceramics Co., Ltd. | 22 |
8 |
Rolls-Royce Corporation | 1686 |
7 |
Rtx Corporation | 8674 |
7 |
Safran Ceramics | 366 |
6 |
Centre National de La Recherche Scientifique | 9632 |
5 |
Korea Institute of Science and Technology | 2022 |
5 |
Saint-Gobain TM Kabushiki Kaisha | 16 |
5 |
Krosakiharima Corporation | 259 |
3 |
DeguDent GmbH | 238 |
2 |
DENTSPLY SIRONA Inc. | 1860 |
2 |
Fireline, Inc. | 6 |
2 |
Goodrich Corporation | 2081 |
2 |
Saint-Gobain Ceramics & Plastics, Inc. | 812 |
2 |
Universite de Bordeaux | 778 |
2 |
GE Infrastructure Technology, LLC | 5873 |
2 |
SAFRAN S.A. | 518 |
1 |
Other owners | 34 |