- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F23L - Supplying air or non-combustible liquids or gases to combustion apparatus in general; valves or dampers specially adapted for controlling air supply or draught in combustion apparatus; inducing draught in combustion apparatus; tops for chimneys or ventilating shafts; terminals for flues
- F23L 7/00 - Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
Patent holdings for IPC class F23L 7/00
Total number of patents in this class: 815
10-year publication summary
|
77
|
53
|
54
|
51
|
41
|
36
|
38
|
39
|
52
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3599 |
48 |
| 8 Rivers Capital, LLC | 239 |
40 |
| Air Products and Chemicals, Inc. | 1435 |
35 |
| Praxair Technology, Inc. | 1330 |
34 |
| IHI Corporation | 3359 |
31 |
| Alstom Technology Ltd | 1145 |
24 |
| General Electric Technology GmbH | 1599 |
21 |
| Siemens AG | 24565 |
20 |
| GE Infrastructure Technology, LLC | 6114 |
15 |
| ITEA S.p.A. | 26 |
12 |
| Messer Industries USA, Inc. | 114 |
12 |
| Mitsubishi Power, Ltd. | 1737 |
12 |
| Linde Aktiengesellschaft | 1549 |
11 |
| Palmer Labs, LLC | 30 |
10 |
| Saudi Arabian Oil Company | 12446 |
10 |
| General Electric Company | 17789 |
8 |
| Babcock-Hitachi Kabushiki Kaisha | 105 |
8 |
| Taiyo Nippon Sanso Corporation | 357 |
8 |
| ClearSign Technologies Corporation | 47 |
8 |
| Her Majesty the Queen in right of Canada, as represented by the Minister of Natural Resources | 105 |
7 |
| Other owners | 441 |