- All sections
- H - Electricity
- H05B - Electric heating electric light sources not otherwise provided forcircuit arrangements for electric light sources, in general
- H05B 3/04 - Waterproof or air-tight seals for heaters
Patent holdings for IPC class H05B 3/04
Total number of patents in this class: 301
10-year publication summary
|
36
|
32
|
22
|
21
|
25
|
20
|
27
|
45
|
31
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Altria Client Services LLC | 2331 |
34 |
| Nicoventures Trading Limited | 4437 |
19 |
| Watlow Electric Manufacturing Company | 588 |
17 |
| JT International S.A. | 2820 |
16 |
| Philip Morris Products S.A. | 7894 |
14 |
| Eberspacher catem GmbH & Co. KG | 99 |
11 |
| Jli National Settlement Trust | 229 |
8 |
| Robert Bosch GmbH | 43365 |
6 |
| I.R.C.A. S.p.A. Industria Resistenze Corazzate e Affini | 167 |
6 |
| KT & G Corporation | 2899 |
6 |
| Chemelex Europe GmbH | 67 |
6 |
| RAI Strategic Holdings, Inc. | 1180 |
5 |
| Sanden Corporation | 995 |
5 |
| Juul Labs, Inc. | 429 |
5 |
| Bestway Inflatables & Material Corp. | 424 |
4 |
| Fontem Ventures B.V. | 307 |
4 |
| Imperial Tobacco Limited | 723 |
4 |
| Valeo Systemes Thermiques | 2796 |
4 |
| Fontem (Beijing) Technology Solutions Ltd | 19 |
4 |
| Bleckmann GmbH & Co. KG | 34 |
3 |
| Other owners | 120 |