- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F23D - Burners
- F23D 11/38 - NozzlesCleaning devices therefor
Patent holdings for IPC class F23D 11/38
Total number of patents in this class: 314
10-year publication summary
|
23
|
42
|
37
|
16
|
13
|
15
|
11
|
11
|
10
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24033 |
24 |
| Collins Engine Nozzles, Inc. | 287 |
24 |
| Rtx Corporation | 10082 |
21 |
| General Electric Company | 13888 |
20 |
| Pratt & Whitney Canada Corp. | 5472 |
18 |
| GE Infrastructure Technology, LLC | 6171 |
15 |
| Mitsubishi Hitachi Power Systems, Ltd. | 991 |
8 |
| Siemens Energy Global GmbH & Co. KG | 3335 |
8 |
| Mitsubishi Heavy Industries, Ltd. | 9115 |
7 |
| Rolls-Royce PLC | 3219 |
7 |
| ClearSign Technologies Corporation | 53 |
7 |
| Mitsubishi Power, Ltd. | 1832 |
7 |
| Halliburton Energy Services, Inc. | 21320 |
6 |
| Air Products and Chemicals, Inc. | 1469 |
6 |
| Delavan Inc | 30 |
6 |
| Woodward, Inc. | 675 |
6 |
| IHI Corporation | 3532 |
5 |
| Rolls-Royce Deutschland Ltd & Co KG | 857 |
5 |
| Babcock-Hitachi Kabushiki Kaisha | 93 |
4 |
| Edwards Limited | 773 |
4 |
| Other owners | 106 |