- All sections
- H - Electricity
- H05B - Electric heating; electric light sources not otherwise provided for; circuit arrangements for electric light sources, in general
- H05B 7/20 - Direct heating by arc discharge, i.e. where at least one end of the arc directly acts on the material to be heated, including additional resistance heating by arc current flowing through the material to be heated
Patent holdings for IPC class H05B 7/20
Total number of patents in this class: 43
10-year publication summary
|
3
|
5
|
3
|
3
|
10
|
5
|
1
|
6
|
1
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Titanium Metals Corporation | 80 |
4 |
| Danieli Automation SpA | 109 |
3 |
| Danieli & C. Officine Meccaniche S.p.A. | 680 |
3 |
| Siemens AG | 24990 |
2 |
| A. Finkl & Sons Co. | 85 |
2 |
| Hatch Ltd. | 219 |
2 |
| Nortek Air Solutions Canada, Inc. | 114 |
2 |
| Systems Spray Cooled, Inc. | 46 |
2 |
| Illinois Tool Works Inc. | 11152 |
1 |
| Alu Innovation AS | 7 |
1 |
| Commercial Metals Company | 39 |
1 |
| Foret Plasma Labs, LLC | 85 |
1 |
| GrafTech International Holdings Inc. | 108 |
1 |
| Kunming University of Science and Technology | 117 |
1 |
| Nippon Steel Corporation | 5649 |
1 |
| Northeastern University | 493 |
1 |
| Oerlikon Surface Solutions AG, Pfaffikon | 556 |
1 |
| POSCO Co., Ltd. | 1059 |
1 |
| Primetals Technologies Austria GmbH | 479 |
1 |
| Primetals Technologies Germany GmbH | 180 |
1 |
| Other owners | 11 |