- All sections
- H - Electricity
- H05B - Electric heating electric light sources not otherwise provided forcircuit arrangements for electric light sources, in general
- H05B 6/44 - Coil arrangements having more than one coil or coil segment
Patent holdings for IPC class H05B 6/44
Total number of patents in this class: 441
10-year publication summary
|
21
|
35
|
33
|
54
|
46
|
32
|
35
|
39
|
46
|
16
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nicoventures Trading Limited | 3831 |
24 |
| Philip Morris Products S.A. | 7527 |
20 |
| LG Electronics Inc. | 72559 |
16 |
| Samsung Electronics Co., Ltd. | 144426 |
15 |
| Illinois Tool Works Inc. | 11409 |
15 |
| Neturen Co., Ltd. | 195 |
15 |
| Sauna Works, Inc. | 71 |
13 |
| Nippon Steel Corporation | 6181 |
12 |
| Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co. Limited | 398 |
10 |
| The Boeing Company | 20025 |
9 |
| Inductotherm Corp. | 155 |
9 |
| Ajax Tocco Magnethermic Corporation | 99 |
8 |
| KT & G Corporation | 2592 |
8 |
| NTN Corporation | 4977 |
7 |
| ALD Vacuum Technologies GmbH | 138 |
7 |
| Mitsui Engineering & Shipbuilding Co., Ltd. | 318 |
7 |
| Inductoheat, Inc. | 49 |
6 |
| MITSUI E&S Co., Ltd. | 49 |
6 |
| BSH Hausgeräte GmbH | 5514 |
5 |
| Midea Group Co., Ltd. | 4489 |
5 |
| Other owners | 224 |