- All sections
- H - Electricity
- H05B - Electric heating electric light sources not otherwise provided forcircuit arrangements for electric light sources, in general
- H05B 3/40 - Heating elements having the shape of rods or tubes
Patent holdings for IPC class H05B 3/40
Total number of patents in this class: 393
10-year publication summary
|
36
|
26
|
42
|
34
|
19
|
31
|
25
|
33
|
35
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Watlow Electric Manufacturing Company | 587 |
26 |
| Nichias Corporation | 398 |
11 |
| Altria Client Services LLC | 2327 |
10 |
| Philip Morris Products S.A. | 7879 |
8 |
| KT & G Corporation | 2872 |
8 |
| Kyocera Corporation | 14195 |
6 |
| Sanden Corporation | 995 |
5 |
| Thermos Corporation | 6 |
5 |
| Van Straten Enterprises, Inc. | 20 |
5 |
| Guangdong Midea Kitchen Appliances Manufacturing Co., Ltd. | 478 |
4 |
| Hanon Systems | 2041 |
4 |
| Türk & Hillinger GmbH | 48 |
4 |
| VOSS Automotive GmbH | 219 |
4 |
| Nicoventures Trading Limited | 4434 |
4 |
| Samsung Electronics Co., Ltd. | 151726 |
3 |
| LG Electronics Inc. | 74447 |
3 |
| Denso Corporation | 24997 |
3 |
| Tokyo Electron Limited | 13410 |
3 |
| Henkel AG & Co. KGaA | 10699 |
3 |
| E.t.i.a. Evaluation Technologique, Ingenierie et Applications | 38 |
3 |
| Other owners | 271 |