- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F27B - Furnaces, kilns, ovens, or retorts in general; open sintering or like apparatus
- F27B 3/19 - Arrangement of devices for discharging
Patent holdings for IPC class F27B 3/19
Total number of patents in this class: 78
10-year publication summary
11
|
7
|
6
|
4
|
5
|
2
|
3
|
1
|
3
|
6
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Pyrotek, Inc. | 193 |
5 |
ArcelorMittal | 1887 |
4 |
ATI Properties LLC | 202 |
4 |
Hyundai Steel Company | 310 |
4 |
Primetals Technologies Austria GmbH | 479 |
4 |
SMS Siemag Aktiengesellschaft | 529 |
4 |
Danieli & C. Officine Meccaniche S.p.A. | 680 |
3 |
Siemens AG | 24990 |
2 |
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
2 |
Korea Hydro & Nuclear Power Co., Ltd. | 383 |
2 |
Process Technology International, Inc. | 5 |
2 |
Refractory Intellectual Property GmbH & Co. KG | 502 |
2 |
SABIC Global Technologies B.V. | 4044 |
2 |
Seoul Engineering Co., Ltd. | 10 |
2 |
Thut, Bruno H. | 9 |
2 |
Siemens VAI Metals Technologies GmbH | 233 |
1 |
ABB Schweiz AG | 6321 |
1 |
ABB Research Ltd. | 953 |
1 |
A. Finkl & Sons Co. | 85 |
1 |
Altek Europe Limited | 37 |
1 |
Other owners | 29 |