- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F23C - Methods or apparatus for combustion using fluid fuel or solid fuel suspended in air
- F23C 99/00 - Subject matter not provided for in other groups of this subclass
Patent holdings for IPC class F23C 99/00
Total number of patents in this class: 474
10-year publication summary
|
60
|
45
|
33
|
25
|
29
|
11
|
13
|
15
|
14
|
17
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| IHI Corporation | 3462 |
25 |
| ClearSign Technologies Corporation | 52 |
18 |
| Babcock-Hitachi Kabushiki Kaisha | 102 |
17 |
| IFP Energies Nouvelles | 2973 |
17 |
| Mitsubishi Heavy Industries, Ltd. | 8861 |
16 |
| Mitsubishi Power, Ltd. | 1809 |
15 |
| Mitsubishi Hitachi Power Systems, Ltd. | 991 |
13 |
| Miura Co., Ltd. | 290 |
12 |
| Siemens AG | 24342 |
10 |
| ClearSign Combustion Corporation | 111 |
10 |
| Electric Power Development Co., Ltd. | 72 |
10 |
| Saudi Arabian Oil Company | 13600 |
10 |
| Totalenergies Onetech | 1413 |
10 |
| Edwards Limited | 788 |
9 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3102 |
9 |
| Total Raffinage Chimie | 132 |
8 |
| Taiyo Nippon Sanso Corporation | 365 |
7 |
| Nederlandse Organisatie voor Toegepast-natuurwetenschappelijk Onderzoek TNO | 2393 |
6 |
| Kawasaki Heavy Industries, Limited | 1644 |
5 |
| Chugai Ro Co., Ltd. | 128 |
5 |
| Other owners | 242 |