- All sections
- H - Electricity
- H05B - Electric heating electric light sources not otherwise provided forcircuit arrangements for electric light sources, in general
- H05B 7/09 - Self-baking electrodes
Patent holdings for IPC class H05B 7/09
Total number of patents in this class: 32
10-year publication summary
|
0
|
4
|
1
|
5
|
2
|
3
|
1
|
0
|
0
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rheinfelden Carbon GmbH & Co. KG | 5 |
4 |
| Outotec (Finland) Oy | 461 |
3 |
| Rheinfelden Carbon Products GmbH | 3 |
3 |
| BASF SE | 21098 |
2 |
| Ferropem | 13 |
2 |
| GrafTech International Holdings Inc. | 112 |
2 |
| Glencore Operations South Africa (Proprietary) Limited | 3 |
2 |
| Dow Corning Corporation | 948 |
1 |
| Alcoa Inc. | 276 |
1 |
| Denki Kagaku Kogyo Kabushiki Kaisha | 617 |
1 |
| Fai Production | 8 |
1 |
| Hatch Ltd. | 215 |
1 |
| Italghisa S.p.A. | 1 |
1 |
| JFE Material Co., Ltd. | 13 |
1 |
| POSCO Co., Ltd. | 1601 |
1 |
| SMS Group GmbH | 1142 |
1 |
| SMS Siemag Aktiengesellschaft | 500 |
1 |
| Silbucam, S.L. | 1 |
1 |
| Rain Carbon Germany GmbH | 54 |
1 |
| Rain Carbon BV | 10 |
1 |
| Other owners | 1 |