- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F27B - Furnaces, kilns, ovens, or retorts in general; open sintering or like apparatus
- F27B 3/18 - Arrangement of devices for charging
Patent holdings for IPC class F27B 3/18
Total number of patents in this class: 234
10-year publication summary
|
22
|
18
|
17
|
16
|
16
|
10
|
13
|
8
|
12
|
15
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Danieli & C. Officine Meccaniche S.p.A. | 680 |
30 |
| Tenova S.p.A. | 150 |
18 |
| ArcelorMittal | 1887 |
13 |
| Pyrotek, Inc. | 193 |
9 |
| Tata Steel Limited | 184 |
9 |
| Siemens AG | 24990 |
7 |
| JP Steel Plantech Co. | 80 |
7 |
| Technological Resources Pty. Limited | 444 |
7 |
| ATI Properties LLC | 202 |
5 |
| Cisdi Engineering Co., Ltd. | 86 |
5 |
| Danieli Automation SpA | 109 |
5 |
| Nippon Steel Corporation | 5649 |
5 |
| JFE Steel Corporation | 6067 |
4 |
| Owens-Brockway Glass Container Inc. | 716 |
4 |
| Paul Wurth S.A. | 392 |
4 |
| Primetals Technologies Germany GmbH | 180 |
4 |
| Techint Compagnia Tecnica Internazionale S.p.A. | 22 |
4 |
| ABB Schweiz AG | 6321 |
3 |
| HYL Technologies, S.A. de C.V. | 41 |
3 |
| INTECO Special Melting Technologies GmbH | 13 |
3 |
| Other owners | 85 |