- All sections
- H - Electricity
- H05B - Electric heating electric light sources not otherwise provided forcircuit arrangements for electric light sources, in general
- H05B 3/42 - Heating elements having the shape of rods or tubes non-flexible
Patent holdings for IPC class H05B 3/42
Total number of patents in this class: 629
10-year publication summary
|
45
|
73
|
58
|
63
|
48
|
60
|
63
|
73
|
58
|
36
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Altria Client Services LLC | 2202 |
55 |
| KT & G Corporation | 2650 |
26 |
| Philip Morris Products S.A. | 7658 |
25 |
| Fontem Ventures B.V. | 302 |
23 |
| JT International S.A. | 2735 |
22 |
| RAI Strategic Holdings, Inc. | 1157 |
21 |
| Nicoventures Trading Limited | 3931 |
21 |
| Watlow Electric Manufacturing Company | 581 |
17 |
| NGK Insulators, Ltd. | 4965 |
12 |
| Japan Tobacco Inc. | 3596 |
10 |
| Shenzhen First Union Technology Co., Ltd. | 845 |
10 |
| BASF SE | 20915 |
9 |
| I.R.C.A. S.p.A. Industria Resistenze Corazzate e Affini | 166 |
8 |
| Valeo Systemes Thermiques | 2732 |
8 |
| Türk & Hillinger GmbH | 48 |
7 |
| Gunther Heisskanaltechnik GmbH | 58 |
6 |
| Shenzhen Smoore Technology Limited | 1532 |
6 |
| Linde GmbH | 1264 |
6 |
| Hyundai Motor Company | 22044 |
5 |
| Corning Incorporated | 10268 |
5 |
| Other owners | 327 |