- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F27B - Furnaces, kilns, ovens or retorts in generalopen sintering or like apparatus
- F27B 5/02 - Muffle furnacesRetort furnacesOther furnaces in which the charge is held completely isolated of multiple-chamber type
Patent holdings for IPC class F27B 5/02
Total number of patents in this class: 32
10-year publication summary
|
1
|
4
|
5
|
0
|
1
|
6
|
2
|
0
|
5
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| IHI Corporation | 3438 |
5 |
| IHI Machinery and Furnace Co., Ltd. | 79 |
5 |
| Tokyo Electron Limited | 12733 |
3 |
| National Institute for Materials Science | 1105 |
2 |
| Nouveau Monde Graphite Inc. | 12 |
2 |
| Rtx Corporation | 9385 |
2 |
| Fujian Golden Dragon Rare-earth Co., Ltd. | 64 |
2 |
| Corning Incorporated | 10263 |
1 |
| ASM IP Holding B.V. | 2078 |
1 |
| Centrotherm Photovoltaics AG | 41 |
1 |
| Kunming University of Science and Technology | 184 |
1 |
| Nissin Giken Co., Ltd. | 3 |
1 |
| Norsk Hydro ASA | 257 |
1 |
| Rolls-Royce High Temperature Composites, Inc. | 134 |
1 |
| UACJ Corporation | 695 |
1 |
| Nippon Steel & Sumikin Texeng. Co., Ltd. | 11 |
1 |
| Bengbu Design & Research Institute for Glass Industry | 15 |
1 |
| Dronco AG | 4 |
1 |
| Other owners | 0 |