- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F27B - Furnaces, kilns, ovens or retorts in generalopen sintering or like apparatus
- F27B 7/00 - Rotary-drum furnaces, i.e. horizontal or slightly inclined
Patent holdings for IPC class F27B 7/00
Total number of patents in this class: 70
10-year publication summary
|
1
|
5
|
4
|
2
|
2
|
6
|
5
|
5
|
8
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Holcim Technology Ltd. | 975 |
3 |
| Chevron U.S.A. Inc. | 3939 |
2 |
| Heraeus Quarzglas GmbH & Co. KG | 410 |
2 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3937 |
2 |
| Mitsubishi Materials Corporation | 2432 |
2 |
| Sichuan KO Chang Technology Co., Ltd | 10 |
2 |
| Quantum IR Technologies, LLC | 17 |
2 |
| Ammann Switzerland Ltd. | 3 |
2 |
| LG Chem, Ltd. | 17564 |
1 |
| ABB Research Ltd. | 893 |
1 |
| Aggregate Industries UK Limited | 21 |
1 |
| Andritz Oy | 282 |
1 |
| Blucher GmbH | 179 |
1 |
| CURRENTA GmbH & Co. OHG | 21 |
1 |
| Duerr Systems AG | 225 |
1 |
| East China University of Science and Technology | 512 |
1 |
| Eisenmann SE | 146 |
1 |
| ELG Carbon Fibre International GmbH | 6 |
1 |
| Grenzebach BSH GmbH | 54 |
1 |
| Industrial Accessories Company | 10 |
1 |
| Other owners | 41 |