- 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: 715
10-year publication summary
|
97
|
84
|
81
|
52
|
46
|
40
|
36
|
45
|
37
|
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 | 2359 |
50 |
| LG Electronics Inc. | 75045 |
25 |
| Philip Morris Products S.A. | 8003 |
24 |
| Koninklijke Philips N.V. | 25624 |
21 |
| Fontem Ventures B.V. | 307 |
20 |
| RAI Strategic Holdings, Inc. | 1197 |
18 |
| Versuni Holding B.V. | 993 |
14 |
| Panasonic Intellectual Property Management Co., Ltd. | 33602 |
9 |
| BSH Bosch und Siemens Hausgerate GmbH | 2565 |
9 |
| I.R.C.A. S.p.A. Industria Resistenze Corazzate e Affini | 164 |
9 |
| Numerical Design, Inc. | 10 |
9 |
| Sharp Kabushiki Kaisha | 18608 |
9 |
| Nicoventures Trading Limited | 4492 |
9 |
| Shenzhen First Union Technology Co., Ltd. | 948 |
8 |
| Koninklijke Philips Electronics N.V. | 7988 |
7 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11013 |
7 |
| Alfred Kärcher GmbH & Co. KG | 356 |
7 |
| BSH Hausgeräte GmbH | 5602 |
7 |
| SEB S.A. | 1672 |
7 |
| Wyndscent, LLC | 32 |
7 |
| Other owners | 439 |