- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F22B - Methods of steam generationsteam boilers
- F22B 1/28 - Methods of steam generation characterised by form of heating method in boilers heated electrically
Patent holdings for IPC class F22B 1/28
Total number of patents in this class: 697
10-year publication summary
|
97
|
91
|
83
|
80
|
49
|
44
|
39
|
35
|
43
|
26
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Altria Client Services LLC | 2197 |
49 |
| LG Electronics Inc. | 73344 |
24 |
| Philip Morris Products S.A. | 7661 |
24 |
| Koninklijke Philips N.V. | 24767 |
21 |
| Fontem Ventures B.V. | 301 |
20 |
| RAI Strategic Holdings, Inc. | 1154 |
18 |
| Versuni Holding B.V. | 950 |
13 |
| Panasonic Intellectual Property Management Co., Ltd. | 31562 |
9 |
| BSH Bosch und Siemens Hausgerate GmbH | 2873 |
9 |
| I.R.C.A. S.p.A. Industria Resistenze Corazzate e Affini | 166 |
9 |
| Numerical Design, Inc. | 10 |
9 |
| Sharp Kabushiki Kaisha | 18757 |
9 |
| Nicoventures Trading Limited | 3939 |
9 |
| Koninklijke Philips Electronics N.V. | 9542 |
8 |
| Shenzhen First Union Technology Co., Ltd. | 846 |
8 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10931 |
7 |
| Alfred Kärcher GmbH & Co. KG | 373 |
7 |
| BSH Hausgeräte GmbH | 5527 |
7 |
| Wyndscent, LLC | 31 |
7 |
| Jli National Settlement Trust | 227 |
7 |
| Other owners | 423 |