- All sections
- H - Electricity
- H05B - Electric heating electric light sources not otherwise provided forcircuit arrangements for electric light sources, in general
- H05B 3/82 - Fixedly-mounted immersion heaters
Patent holdings for IPC class H05B 3/82
Total number of patents in this class: 165
10-year publication summary
|
14
|
16
|
20
|
17
|
15
|
30
|
13
|
10
|
9
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Watlow Electric Manufacturing Company | 577 |
20 |
| I.R.C.A. S.p.A. Industria Resistenze Corazzate e Affini | 165 |
14 |
| Robert Bosch GmbH | 42411 |
6 |
| Bradford White Corporation | 167 |
5 |
| Eichenauer Heizelemente GmbH & Co. KG | 28 |
5 |
| Valeo Systemes Thermiques | 2689 |
5 |
| Tounetsu Co., Ltd. | 28 |
4 |
| Hewlett-Packard Development Company, L.P. | 25972 |
3 |
| Cosmos Solar Pty Ltd | 5 |
3 |
| Ember Technologies, Inc. | 117 |
3 |
| NV Bekaert SA | 750 |
3 |
| Niterra Co., Ltd. | 1249 |
3 |
| Philip Morris Products S.A. | 7518 |
2 |
| Whirlpool Corporation | 4386 |
2 |
| NGK Spark Plug Co., Ltd. | 897 |
2 |
| Bestway Inflatables & Material Corp. | 402 |
2 |
| Breville Pty Limited | 577 |
2 |
| Chronomite Laboratories, Inc. | 37 |
2 |
| DBK David + Baader GmbH | 45 |
2 |
| Lethiguel | 8 |
2 |
| Other owners | 75 |