- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F23C - Methods or apparatus for combustion using fluid fuel or solid fuel suspended in air
- F23C 3/00 - Combustion apparatus characterised by the shape of the combustion chamber
Patent holdings for IPC class F23C 3/00
Total number of patents in this class: 337
10-year publication summary
|
42
|
26
|
32
|
31
|
28
|
22
|
23
|
23
|
14
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Johns Manville | 967 |
15 |
| WS Warmeprozesstechnik GmbH | 39 |
13 |
| IHI Corporation | 3354 |
9 |
| Saint-Gobain Isover | 627 |
9 |
| JFE Steel Corporation | 6527 |
8 |
| Corning Incorporated | 10087 |
7 |
| Fives Stein | 99 |
7 |
| Knauf Insulation | 47 |
7 |
| Knauf Insulation SPRL | 173 |
7 |
| Rheem Manufacturing Company | 915 |
6 |
| Schwank G.m.b.H. | 43 |
6 |
| GasTech Engineering LLC, FORMERLY GasTech Engineering Corp. | 6 |
5 |
| Chugai Ro Co., Ltd. | 123 |
4 |
| Lochinvar, LLC | 105 |
4 |
| Saint-Gobain Ceramics & Plastics, Inc. | 837 |
4 |
| ROCKWOOL International A/S | 312 |
4 |
| Rockwool A/S | 782 |
4 |
| Uop LLC | 4187 |
3 |
| Drever International S.A. | 9 |
3 |
| E.t.i.a. Evaluation Technologique, Ingenierie et Applications | 39 |
3 |
| Other owners | 209 |