- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F27D - Details or accessories of furnaces, kilns, ovens, or retorts, in so far as they are of kinds occurring in more than one kind of furnace
- F27D 13/00 - Apparatus for preheating charges; Arrangements for preheating charges
Patent holdings for IPC class F27D 13/00
Total number of patents in this class: 217
10-year publication summary
|
10
|
16
|
13
|
6
|
10
|
14
|
15
|
15
|
12
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Danieli & C. Officine Meccaniche S.p.A. | 704 |
21 |
| Tenova S.p.A. | 154 |
15 |
| SMS Group GmbH | 1077 |
6 |
| Technological Resources Pty. Limited | 443 |
6 |
| SMS Siemag Aktiengesellschaft | 515 |
5 |
| JP Steel Plantech Co. | 81 |
4 |
| Mitsubishi Materials Corporation | 2405 |
4 |
| SMS CONCAST ITALIA S.p.A. | 9 |
4 |
| Air Products and Chemicals, Inc. | 1425 |
3 |
| ArcelorMittal | 2047 |
3 |
| Cisdi Engineering Co., Ltd. | 93 |
3 |
| Danieli Automation SpA | 112 |
3 |
| Outotec Oyj | 302 |
3 |
| Tata Steel Limited | 190 |
3 |
| ThyssenKrupp AG | 3207 |
3 |
| ThyssenKrupp Industrial Solutions AG | 700 |
3 |
| Siemens AG | 24575 |
2 |
| Tokyo Electron Limited | 12067 |
2 |
| Calix Ltd | 87 |
2 |
| Gautschi Engineering GmbH | 12 |
2 |
| Other owners | 120 |