- All sections
- H - Electricity
- H05B - Electric heating electric light sources not otherwise provided forcircuit arrangements for electric light sources, in general
- H05B 3/30 - Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor embedded in insulating material on or between metallic plates
Patent holdings for IPC class H05B 3/30
Total number of patents in this class: 53
10-year publication summary
|
6
|
3
|
3
|
2
|
7
|
10
|
5
|
0
|
1
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Eberspacher catem GmbH & Co. KG | 96 |
6 |
| Lexmark International, Inc. | 1691 |
4 |
| NHK Spring Co., Ltd. | 1812 |
4 |
| Alinox AG | 6 |
3 |
| I.R.C.A. S.p.A. Industria Resistenze Corazzate e Affini | 163 |
3 |
| Semes Co., Ltd. | 1391 |
2 |
| Eberspacher catem Hermsdorf GmbH & Co. KG | 6 |
2 |
| Canon Inc. | 39206 |
1 |
| Robert Bosch GmbH | 42354 |
1 |
| NGK Insulators, Ltd. | 4895 |
1 |
| Behr GmbH & Co. KG | 325 |
1 |
| Betacera Inc. | 2 |
1 |
| Board of Regents of The Nevada System of Higher Education, on Behalf of The University of Nevada, Reno | 133 |
1 |
| BorgWarner BERU Systems GmbH | 47 |
1 |
| BSH Home Appliances Corporation | 770 |
1 |
| BYD Company Limited | 4713 |
1 |
| Cedal Equipment S.r.l. | 8 |
1 |
| DONGWOO FINE-CHEM Co., Ltd. | 1294 |
1 |
| Doosan Corporation | 432 |
1 |
| Enodis Corporation | 69 |
1 |
| Other owners | 16 |