- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F27B - Furnaces, kilns, ovens or retorts in generalopen sintering or like apparatus
- F27B 9/20 - 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
Patent holdings for IPC class F27B 9/20
Total number of patents in this class: 118
10-year publication summary
|
4
|
8
|
4
|
7
|
4
|
17
|
7
|
4
|
10
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| IHI Corporation | 3491 |
7 |
| Illinois Tool Works Inc. | 11645 |
5 |
| Fives Stein | 104 |
5 |
| Cerco LLC | 4 |
3 |
| SMS Group GmbH | 1149 |
3 |
| Tenova S.p.A. | 156 |
3 |
| University of Maryland, College Park | 1046 |
3 |
| Murata Manufacturing Co., Ltd. | 25207 |
2 |
| NGK Insulators, Ltd. | 5185 |
2 |
| Air Products and Chemicals, Inc. | 1453 |
2 |
| Chugai Ro Co., Ltd. | 127 |
2 |
| Danieli & C. Officine Meccaniche S.p.A. | 715 |
2 |
| Danieli Centro Combustion S.p.A. | 12 |
2 |
| extrutec GmbH | 9 |
2 |
| IHI Machinery and Furnace Co., Ltd. | 79 |
2 |
| Sacmi Cooperativa Meccanici Imola Societa' Cooperativa | 573 |
2 |
| Tubos de Acero de Mexico, S.A. | 8 |
2 |
| N. Bättenhausen Industrielle Wärme-und Elektrotechnik GmbH | 2 |
2 |
| Ghi Hornos Industriales S.L. | 6 |
2 |
| Linde GmbH | 1310 |
2 |
| Other owners | 63 |