- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F27B - Furnaces, kilns, ovens or retorts in generalopen sintering or like apparatus
- F27B 7/02 - Rotary-drum furnaces, i.e. horizontal or slightly inclined of multiple-chamber or multiple-drum type
Patent holdings for IPC class F27B 7/02
Total number of patents in this class: 59
10-year publication summary
|
3
|
2
|
1
|
9
|
3
|
1
|
8
|
3
|
8
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Heavy Industries Environmental & Chemical Engineering Co., Ltd. | 127 |
4 |
| Novelis Inc. | 774 |
3 |
| Semiconductor Energy Laboratory Co., Ltd. | 11705 |
2 |
| General Electric Technology GmbH | 1343 |
2 |
| Heraeus Quarzglas GmbH & Co. KG | 417 |
2 |
| KHD Humboldt Wedag GmbH | 191 |
2 |
| Shijiazhuang Xinhua Energy Environmental Technology Co., Ltd. | 3 |
2 |
| Finn Recycling Oy | 10 |
2 |
| LG Chem, Ltd. | 17883 |
1 |
| NGK Insulators, Ltd. | 5223 |
1 |
| British American Tobacco (Investments) Limited | 1004 |
1 |
| Central Motor Wheel Co., Ltd. | 90 |
1 |
| Guangdong Brunp Recycling Technology Co., Ltd | 1255 |
1 |
| Guangzhou Tinci Materials Technology Co., Ltd. | 149 |
1 |
| HeidelbergCement AG | 78 |
1 |
| Hunan Brunp Recycling Technology Co., Ltd. | 1219 |
1 |
| Industrial Accessories Company | 10 |
1 |
| Innord Inc. | 4 |
1 |
| Innovatherm Prof. Dr. Leisenberg GmbH & Co. KG | 29 |
1 |
| JFE Steel Corporation | 7407 |
1 |
| Other owners | 28 |