- All sections
- H - Electricity
- H05B - Electric heating; electric light sources not otherwise provided for; circuit 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: 30
10-year publication summary
|
3
|
0
|
6
|
1
|
6
|
4
|
3
|
1
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rheinfelden Carbon GmbH & Co. KG | 9 |
6 |
| Ferropem | 24 |
3 |
| Outotec (Finland) Oy | 491 |
3 |
| BASF SE | 19740 |
2 |
| Dow Corning Corporation | 1072 |
2 |
| GrafTech International Holdings Inc. | 108 |
2 |
| Glencore Operations South Africa (Proprietary) Limited | 3 |
2 |
| Alcoa Inc. | 323 |
1 |
| Denki Kagaku Kogyo Kabushiki Kaisha | 680 |
1 |
| Fai Production | 9 |
1 |
| Italghisa S.p.A. | 1 |
1 |
| JFE Material Co., Ltd. | 16 |
1 |
| SMS Group GmbH | 1029 |
1 |
| SMS Siemag Aktiengesellschaft | 529 |
1 |
| Advanced Intellectual Holdings Pty Ltd | 3 |
1 |
| Silbucam, S.L. | 1 |
1 |
| Rheinfelden Carbon Products GmbH | 1 |
1 |
| Other owners | 0 |