- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F27B - Furnaces, kilns, ovens or retorts in generalopen sintering or like apparatus
- F27B 9/36 - Arrangements of heating devices
Patent holdings for IPC class F27B 9/36
Total number of patents in this class: 272
10-year publication summary
|
22
|
17
|
18
|
14
|
5
|
27
|
23
|
22
|
20
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| IHI Corporation | 3375 |
12 |
| NGK Insulators, Ltd. | 4846 |
10 |
| Sacmi Forni & Filter S.p.A. | 11 |
8 |
| ArcelorMittal | 2119 |
6 |
| Fives Stein | 102 |
6 |
| Research Institute of Industrial Science & Technology | 469 |
6 |
| Chugai Ro Co., Ltd. | 125 |
5 |
| POSCO | 2194 |
5 |
| E.t.i.a. Evaluation Technologique, Ingenierie et Applications | 40 |
4 |
| IHI Machinery and Furnace Co., Ltd. | 78 |
4 |
| ITT Italia S.r.l. | 152 |
4 |
| Luossavaara-Kiirunavaara AB | 106 |
4 |
| Neturen Co., Ltd. | 194 |
4 |
| Nippon Steel Corporation | 6060 |
4 |
| Illinois Tool Works Inc. | 11378 |
3 |
| Applied Materials, Inc. | 18231 |
3 |
| Corning Incorporated | 10142 |
3 |
| C.R.F. Societa Consortile per Azioni | 380 |
3 |
| Danieli & C. Officine Meccaniche S.p.A. | 705 |
3 |
| Drever International S.A. | 8 |
3 |
| Other owners | 172 |