- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F27B - Furnaces, kilns, ovens or retorts in generalopen sintering or like apparatus
- F27B 3/00 - Hearth-type furnaces, e.g. of reverberatory typeElectric arc furnaces
Patent holdings for IPC class F27B 3/00
Total number of patents in this class: 31
10-year publication summary
|
0
|
1
|
0
|
3
|
0
|
0
|
2
|
1
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nu-Iron Technology, LLC | 39 |
3 |
| Carbontec Energy Corporation | 5 |
2 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3617 |
2 |
| Newsouth Innovations Pty Limited | 596 |
2 |
| Saint-Gobain Isover | 631 |
2 |
| AGC Glass Europe | 1105 |
1 |
| Cisdi Engineering Co., Ltd. | 94 |
1 |
| Durferrit GmbH | 39 |
1 |
| Herlogas, S.A. | 2 |
1 |
| Kappes, Cassiday & Associates | 9 |
1 |
| Novelis Inc. | 117 |
1 |
| Novelis Inc. | 706 |
1 |
| Osaka Gas Co., Ltd. | 322 |
1 |
| Process Technology International, Inc. | 5 |
1 |
| SIA ?gors? | 1 |
1 |
| Tata Steel Limited | 191 |
1 |
| Technological Resources Pty. Limited | 446 |
1 |
| Wroclawskie Centrum Badan Eit+ Sp. z o.o. | 38 |
1 |
| China ENFI Engineering Corp. | 99 |
1 |
| Instytut Niskich Temperatur I Badan Strukturalnych | 3 |
1 |
| Other owners | 5 |