- All sections
- H - Electricity
- H05B - Electric heating; electric light sources not otherwise provided for; circuit 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: 328
10-year publication summary
|
20
|
22
|
36
|
29
|
43
|
36
|
17
|
30
|
25
|
9
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Watlow Electric Manufacturing Company | 569 |
21 |
| Altria Client Services LLC | 1866 |
8 |
| Kyocera Corporation | 12735 |
6 |
| Philip Morris Products S.A. | 6751 |
5 |
| KT & G Corporation | 1876 |
5 |
| E.t.i.a. Evaluation Technologique, Ingenierie et Applications | 37 |
4 |
| Nichias Corporation | 386 |
4 |
| Türk & Hillinger GmbH | 51 |
4 |
| VOSS Automotive GmbH | 211 |
4 |
| LG Electronics Inc. | 69257 |
3 |
| Denso Corporation | 23338 |
3 |
| Tokyo Electron Limited | 11599 |
3 |
| Henkel AG & Co. KGaA | 10129 |
3 |
| Hanon Systems | 1632 |
3 |
| RAI Strategic Holdings, Inc. | 1026 |
3 |
| Sanden Corporation | 859 |
3 |
| Tuerk & Hillinger GmbH | 5 |
3 |
| Philter Labs Incorporated, AKA Philter Labs, Inc. | 32 |
3 |
| Salamander Solutions Inc. | 17 |
3 |
| Shenzhen Jiemeisi Industrial Co., Ltd. | 10 |
3 |
| Other owners | 234 |