- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F23H - Gratescleaning or raking grates
- F23H 3/02 - Grates with hollow bars internally cooled
Patent holdings for IPC class F23H 3/02
Total number of patents in this class: 39
10-year publication summary
|
1
|
4
|
1
|
4
|
2
|
5
|
2
|
1
|
1
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Zosen iNova AG | 42 |
4 |
| Kanadevia iNova AG | 81 |
4 |
| Doikos Investments Ltd. | 5 |
3 |
| Martin GmbH fur Umwelt-und Energietechnik | 55 |
3 |
| Babcock & Wilcox Vølund ApS | 11 |
3 |
| Doosan Lentjes GmbH | 49 |
2 |
| Siemens AG | 24304 |
1 |
| Alite GmbH | 19 |
1 |
| General Electric Technology GmbH | 1365 |
1 |
| Inter Bio. Co. | 1 |
1 |
| Mitsubishi Heavy Industries Environmental & Chemical Engineering Co., Ltd. | 126 |
1 |
| Riley Power Inc. | 23 |
1 |
| Seko-Patent GmbH | 4 |
1 |
| Southeast University | 1472 |
1 |
| Valmet Technologies Oy | 289 |
1 |
| FLSmidth A/S | 778 |
1 |
| Babcock & Wilcox Voelund A/S | 2 |
1 |
| Standardkessel Baumgarte GmbH | 7 |
1 |
| Zhejiang Liju Boiler Co., Ltd. | 3 |
1 |
| China Tianying Inc. | 9 |
1 |
| Other owners | 6 |