- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F27B - Furnaces, kilns, ovens or retorts in generalopen sintering or like apparatus
- F27B 7/18 - Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge the means being movable within the drum
Patent holdings for IPC class F27B 7/18
Total number of patents in this class: 28
10-year publication summary
|
1
|
2
|
1
|
0
|
2
|
1
|
0
|
7
|
5
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Chem, Ltd. | 17594 |
2 |
| Novelis Inc. | 742 |
2 |
| Siemens AG | 24525 |
1 |
| Semiconductor Energy Laboratory Co., Ltd. | 11385 |
1 |
| Ecopro BM Co., Ltd. | 211 |
1 |
| Hatch Pty Ltd | 11 |
1 |
| Holcim Technology Ltd. | 986 |
1 |
| Kurimoto, Ltd. | 90 |
1 |
| Neste Oyj | 787 |
1 |
| Polysius AG | 50 |
1 |
| SunEdison, Inc. | 35 |
1 |
| ThyssenKrupp AG | 3276 |
1 |
| Xi'an Aojie Electric Heating Equipment Engineering Co., Ltd | 3 |
1 |
| GAIA Institute of Environment Technology Inc. | 1 |
1 |
| Chisaki Corporation | 1 |
1 |
| Dongguan Songshan Technology Group Co., Ltd. | 3 |
1 |
| Finn Recycling Oy | 12 |
1 |
| Zhaoyuan Huichao New Energy Technology Co., Ltd. | 13 |
1 |
| Benninghoven Zweigniederlassung der Wirtgen Mineral Technologies GmbH | 25 |
1 |
| Ecopro HN Co., Ltd. | 5 |
1 |
| Other owners | 6 |