- 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: 398
10-year publication summary
|
36
|
29
|
43
|
36
|
20
|
32
|
25
|
35
|
35
|
15
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Watlow Electric Manufacturing Company | 577 |
26 |
| Nichias Corporation | 402 |
11 |
| Philip Morris Products S.A. | 8181 |
10 |
| Altria Client Services LLC | 2435 |
10 |
| KT & G Corporation | 3123 |
10 |
| Kyocera Corporation | 14359 |
6 |
| Guangdong Midea Kitchen Appliances Manufacturing Co., Ltd. | 502 |
5 |
| Sanden Corporation | 1030 |
5 |
| Thermos Corporation | 7 |
5 |
| Van Straten Enterprises, Inc. | 20 |
5 |
| Hanon Systems | 2106 |
4 |
| Türk & Hillinger GmbH | 47 |
4 |
| VOSS Automotive GmbH | 221 |
4 |
| Nicoventures Trading Limited | 4706 |
4 |
| Samsung Electronics Co., Ltd. | 157719 |
3 |
| LG Electronics Inc. | 75694 |
3 |
| Denso Corporation | 25534 |
3 |
| Henkel AG & Co. KGaA | 10770 |
3 |
| E.t.i.a. Evaluation Technologique, Ingenierie et Applications | 33 |
3 |
| I.R.C.A. S.p.A. Industria Resistenze Corazzate e Affini | 167 |
3 |
| Other owners | 271 |