- All sections
- H - Electricity
- H05B - Electric heating electric light sources not otherwise provided forcircuit arrangements for electric light sources, in general
- H05B 3/50 - Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material heating conductor arranged in metal tubes, the radiating surface having heat-conducting fins
Patent holdings for IPC class H05B 3/50
Total number of patents in this class: 141
10-year publication summary
|
10
|
3
|
18
|
25
|
8
|
14
|
8
|
9
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Valeo Systemes Thermiques | 2680 |
30 |
| Eberspacher catem GmbH & Co. KG | 96 |
10 |
| Stego-Holding GmbH | 100 |
7 |
| LG Innotek Co., Ltd. | 7486 |
6 |
| BorgWarner Ludwigsburg GmbH | 104 |
4 |
| Epcos AG | 711 |
3 |
| Amogreentech Co., Ltd. | 603 |
3 |
| Behr-Hella Thermocontrol GmbH | 137 |
3 |
| BYD Company Limited | 4713 |
3 |
| Webasto SE | 1143 |
3 |
| LG Chem, Ltd. | 17526 |
2 |
| BorgWarner BERU Systems GmbH | 47 |
2 |
| Calsonic Kansei Corporation | 662 |
2 |
| Dyson Technology Limited | 3575 |
2 |
| Eichenauer Heizelemente GmbH & Co. KG | 29 |
2 |
| Hanon Systems | 1880 |
2 |
| I.R.C.A. S.p.A. Industria Resistenze Corazzate e Affini | 163 |
2 |
| Jahwa Electronics Co., Ltd. | 173 |
2 |
| MAHLE International GmbH | 2737 |
2 |
| Tom Richards, Inc., DBA Process Technology | 16 |
2 |
| Other owners | 49 |