- All sections
- H - Electricity
- H05B - Electric heating; electric light sources not otherwise provided for; circuit 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: 558
10-year publication summary
|
33
|
45
|
73
|
58
|
61
|
48
|
57
|
61
|
69
|
17
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Altria Client Services LLC | 1866 |
49 |
| Fontem Ventures B.V. | 312 |
23 |
| Philip Morris Products S.A. | 6751 |
21 |
| JT International S.A. | 2449 |
20 |
| RAI Strategic Holdings, Inc. | 1026 |
19 |
| Watlow Electric Manufacturing Company | 569 |
17 |
| KT & G Corporation | 1876 |
13 |
| Nicoventures Trading Limited | 2898 |
12 |
| NGK Insulators, Ltd. | 4589 |
11 |
| Shenzhen First Union Technology Co., Ltd. | 611 |
10 |
| Japan Tobacco Inc. | 3225 |
9 |
| BASF SE | 19740 |
8 |
| Türk & Hillinger GmbH | 51 |
7 |
| Gunther Heisskanaltechnik GmbH | 59 |
6 |
| I.R.C.A. S.p.A. Industria Resistenze Corazzate e Affini | 152 |
6 |
| Valeo Systemes Thermiques | 2471 |
6 |
| Hyundai Motor Company | 19021 |
5 |
| Corning Incorporated | 9932 |
5 |
| Kia Motors Corporation | 7946 |
5 |
| Hanon Systems | 1632 |
5 |
| Other owners | 301 |