- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F27B - Furnaces, kilns, ovens or retorts in generalopen sintering or like apparatus
- F27B 9/26 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path on or in trucks, sleds, or containers
Patent holdings for IPC class F27B 9/26
Total number of patents in this class: 104
10-year publication summary
|
5
|
6
|
1
|
4
|
9
|
11
|
9
|
5
|
9
|
11
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Corning Incorporated | 10504 |
6 |
| Research Institute of Industrial Science & Technology | 568 |
6 |
| NGK Insulators, Ltd. | 5236 |
5 |
| IHI Corporation | 3535 |
5 |
| Koyo Thermo Systems Co., Ltd. | 21 |
4 |
| POSCO | 2143 |
4 |
| SMS Group GmbH | 1197 |
4 |
| POSCO Holdings Inc. | 678 |
4 |
| Metso USA, Inc. | 178 |
3 |
| Noritake Co., Limited | 271 |
3 |
| Saint-Gobain Ceramics & Plastics, Inc. | 805 |
3 |
| Schunk Ingenieurkeramik GmbH | 28 |
3 |
| POSCO Chemical Co., Ltd | 67 |
3 |
| NGK Kilntech, Corporation | 28 |
3 |
| Toyota Motor Corporation | 35772 |
2 |
| Sumitomo Chemical Company, Limited | 9016 |
2 |
| Hirata Corporation | 357 |
2 |
| IHI Machinery and Furnace Co., Ltd. | 76 |
2 |
| Metso Minerals Industries, Inc. | 46 |
2 |
| Tokuyama Corporation | 1477 |
2 |
| Other owners | 36 |