- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F27B - Furnaces, kilns, ovens, or retorts in general; open 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: 62
10-year publication summary
5
|
1
|
5
|
4
|
2
|
2
|
6
|
4
|
5
|
3
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Holcim Technology Ltd. | 868 |
3 |
Chevron U.S.A. Inc. | 3774 |
2 |
Ammann Italy S.p.A. | 7 |
2 |
Heraeus Quarzglas GmbH & Co. KG | 420 |
2 |
L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3515 |
2 |
Mitsubishi Materials Corporation | 2378 |
2 |
Sichuan KO Chang Technology Co., Ltd | 10 |
2 |
Quantum IR Technologies, LLC | 13 |
2 |
LG Chem, Ltd. | 17205 |
1 |
ABB Research Ltd. | 953 |
1 |
ABB Lummus Global Inc. | 23 |
1 |
Aggregate Industries UK Limited | 22 |
1 |
Andritz Oy | 276 |
1 |
Blucher GmbH | 192 |
1 |
CURRENTA GmbH & Co. OHG | 22 |
1 |
Eisenmann SE | 154 |
1 |
ELG Carbon Fibre International GmbH | 6 |
1 |
Industrial Accessories Company | 9 |
1 |
Institut Problem Khimicheskoi Fiziki Rossiiskoi Akademii Nauk (ipkhf Ran ) | 7 |
1 |
Jinchuan Group Co., Ltd. | 12 |
1 |
Other owners | 33 |