- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment 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: 166
10-year publication summary
|
12
|
13
|
15
|
17
|
13
|
13
|
11
|
11
|
12
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rolls-Royce High Temperature Composites, Inc. | 134 |
20 |
| Saint-Gobain Centre de Recherches et d'Etudes Europeen | 488 |
18 |
| Rtx Corporation | 9376 |
13 |
| General Electric Company | 13780 |
10 |
| Asahi Glass Company, Limited | 2786 |
10 |
| AGC Ceramics Co., Ltd. | 25 |
9 |
| Rolls-Royce Corporation | 1736 |
7 |
| Safran Ceramics | 407 |
6 |
| Centre National de La Recherche Scientifique | 10418 |
5 |
| Korea Institute of Science and Technology | 2115 |
5 |
| Saint-Gobain TM Kabushiki Kaisha | 16 |
5 |
| Krosakiharima Corporation | 283 |
3 |
| DeguDent GmbH | 222 |
2 |
| DENTSPLY SIRONA Inc. | 1858 |
2 |
| Fireline, Inc. | 5 |
2 |
| Goodrich Corporation | 2129 |
2 |
| Saint-Gobain Ceramics & Plastics, Inc. | 839 |
2 |
| Universite de Bordeaux | 860 |
2 |
| GE Infrastructure Technology, LLC | 6222 |
2 |
| Agc, Inc. | 4839 |
2 |
| Other owners | 39 |