- All sections
- H - Electricity
- H05B - Electric heating electric light sources not otherwise provided forcircuit arrangements for electric light sources, in general
- H05B 3/44 - Heating elements having the shape of rods or tubes non-flexible heating conductor arranged within rods or tubes of insulating material
Patent holdings for IPC class H05B 3/44
Total number of patents in this class: 714
10-year publication summary
|
65
|
132
|
78
|
76
|
69
|
40
|
51
|
62
|
56
|
31
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Altria Client Services LLC | 2435 |
160 |
| Nicoventures Trading Limited | 4690 |
24 |
| Jli National Settlement Trust | 228 |
22 |
| RAI Strategic Holdings, Inc. | 1217 |
20 |
| Shenzhen Smoore Technology Limited | 1761 |
19 |
| Shenzhen First Union Technology Co., Ltd. | 990 |
17 |
| Philip Morris Products S.A. | 8157 |
16 |
| Türk & Hillinger GmbH | 47 |
14 |
| Watlow Electric Manufacturing Company | 575 |
12 |
| Juul Labs, Inc. | 461 |
12 |
| Fontem Ventures B.V. | 300 |
11 |
| Kyocera Corporation | 14335 |
9 |
| NGK Insulators, Ltd. | 5232 |
9 |
| Heraeus Noblelight GmbH | 124 |
9 |
| Japan Tobacco Inc. | 3555 |
9 |
| JT International S.A. | 2866 |
9 |
| KT & G Corporation | 3121 |
7 |
| Rosemount Aerospace Inc. | 780 |
7 |
| Revolution Cooking, LLC | 68 |
7 |
| Philip Morris USA Inc. | 656 |
6 |
| Other owners | 315 |