- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F27D - Details or accessories of furnaces, kilns, ovens or retorts, in so far as they are of kinds occurring in more than one kind of furnace
- F27D 1/04 - CasingsLiningsWallsRoofs characterised by the form of the bricks or blocks used
Patent holdings for IPC class F27D 1/04
Total number of patents in this class: 142
10-year publication summary
|
6
|
9
|
7
|
4
|
6
|
16
|
9
|
6
|
9
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Fosbel, Inc. | 61 |
15 |
| Refractory Intellectual Property GmbH & Co. KG | 567 |
15 |
| Blasch Precision Ceramics, Inc. | 41 |
8 |
| Paul Wurth S.A. | 432 |
6 |
| Harbisonwalker International Holdings, Inc. | 55 |
6 |
| Berry Metal Company | 50 |
5 |
| Saint-Gobain Centre de Recherches et d'Etudes Europeen | 495 |
5 |
| Fsbl Acquisition, Inc. | 16 |
4 |
| ArcelorMittal Investigacion y Desarrollo SL | 207 |
3 |
| E.t.i.a. Evaluation Technologique, Ingenierie et Applications | 33 |
3 |
| Vanocur Refractories, L.L.C. | 36 |
3 |
| Paul Wurth Deutschland GmbH | 25 |
3 |
| ALCAN International Limited | 33 |
2 |
| Bloom Engineering Company, Inc. | 24 |
2 |
| Fluor Technologies Corporation | 361 |
2 |
| JFE Steel Corporation | 7527 |
2 |
| Krosakiharima Corporation | 296 |
2 |
| Luyang Energy-saving Materials Co., Ltd. | 28 |
2 |
| Saint-Gobain Ceramics & Plastics, Inc. | 805 |
2 |
| Universidad de Alicante | 237 |
2 |
| Other owners | 50 |