- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- 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 11/04 - Ohmic resistance heating with direct passage of current through the material being heated
Patent holdings for IPC class F27D 11/04
Total number of patents in this class: 43
10-year publication summary
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4
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5
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5
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6
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1
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3
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4
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0
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3
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3
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BASF SE | 21039 |
2 |
| Corning Incorporated | 10327 |
2 |
| Belenos Clean Power Holding AG | 95 |
2 |
| Danieli & C. Officine Meccaniche S.p.A. | 714 |
2 |
| IHI Corporation | 3453 |
2 |
| Nippon Electrode Company, Ltd. | 23 |
2 |
| Norsk Hydro ASA | 261 |
2 |
| SAMP S.p.A. Con Unico Socio | 21 |
2 |
| Schunk Kohlenstofftechnik GmbH | 132 |
2 |
| Sumitomo Metal Mining Co., Ltd. | 1794 |
2 |
| SAMP S.r.l. | 8 |
2 |
| Illinois Tool Works Inc. | 11519 |
1 |
| Whirlpool Corporation | 4437 |
1 |
| Ibiden Co., Ltd. | 1730 |
1 |
| Chuo Hatsujo Kabushiki Kaisha | 128 |
1 |
| Electrolux Appliances Aktiebolag | 1334 |
1 |
| Fundação Universidade Federal de São Carlos | 32 |
1 |
| Glassy Metals, LLC | 2 |
1 |
| IHI Machinery and Furnace Co., Ltd. | 79 |
1 |
| Ivoclar Vivadent AG | 1050 |
1 |
| Other owners | 12 |