- All sections
- H - Electricity
- H05B - Electric heating electric light sources not otherwise provided forcircuit arrangements for electric light sources, in general
- H05B 3/62 - Heating elements specially adapted for furnaces
Patent holdings for IPC class H05B 3/62
Total number of patents in this class: 82
10-year publication summary
|
11
|
6
|
4
|
7
|
1
|
2
|
3
|
9
|
7
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Leco Corporation | 198 |
7 |
| Sumitomo Electric Industries, Ltd. | 16305 |
3 |
| NGK Insulators, Ltd. | 5232 |
3 |
| Drever International S.A. | 14 |
3 |
| SABIC Global Technologies B.V. | 4596 |
3 |
| Vita Zahnfabrik H. Rauter GmbH & Co. KG | 290 |
3 |
| Nippon Steel & Sumikin Texeng. Co., Ltd. | 11 |
3 |
| Showa Manufacturing Co., Ltd. | 9 |
3 |
| Applied Materials, Inc. | 20363 |
2 |
| Tokyo Electron Limited | 13796 |
2 |
| Corning Incorporated | 10500 |
2 |
| IHI Corporation | 3532 |
2 |
| IHI Machinery and Furnace Co., Ltd. | 76 |
2 |
| Schunk Kohlenstofftechnik GmbH | 139 |
2 |
| Wagstaff, Inc. | 71 |
2 |
| ATG Co., Ltd. | 11 |
2 |
| Metso Metals Oy | 224 |
2 |
| Samsung Electronics Co., Ltd. | 157557 |
1 |
| Honeywell International Inc. | 12778 |
1 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8471 |
1 |
| Other owners | 33 |