- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F22B - Methods of steam generation; steam 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: 671
10-year publication summary
|
76
|
98
|
97
|
84
|
81
|
52
|
45
|
40
|
35
|
13
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Altria Client Services LLC | 1866 |
39 |
| LG Electronics Inc. | 69257 |
24 |
| Philip Morris Products S.A. | 6751 |
21 |
| Koninklijke Philips N.V. | 22975 |
21 |
| Fontem Ventures B.V. | 312 |
19 |
| RAI Strategic Holdings, Inc. | 1026 |
16 |
| Koninklijke Philips Electronics N.V. | 13133 |
13 |
| Versuni Holding B.V. | 817 |
12 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
9 |
| BSH Bosch und Siemens Hausgerate GmbH | 3236 |
9 |
| Sharp Kabushiki Kaisha | 18957 |
9 |
| I.R.C.A. S.p.A. Industria Resistenze Corazzate e Affini | 152 |
8 |
| Shenzhen First Union Technology Co., Ltd. | 611 |
8 |
| Nicoventures Trading Limited | 2898 |
8 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
7 |
| Alfred Kärcher GmbH & Co. KG | 398 |
7 |
| BSH Hausgeräte GmbH | 5384 |
7 |
| Wyndscent, LLC | 30 |
7 |
| Jli National Settlement Trust | 229 |
7 |
| Electrolux Home Products Corporation N.V. | 779 |
6 |
| Other owners | 414 |