- 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: 302
10-year publication summary
|
17
|
18
|
14
|
5
|
27
|
24
|
23
|
21
|
25
|
20
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| IHI Corporation | 3535 |
12 |
| NGK Insulators, Ltd. | 5239 |
9 |
| ArcelorMittal | 2680 |
9 |
| Sacmi Forni & Filter S.p.A. | 13 |
9 |
| Research Institute of Industrial Science & Technology | 569 |
7 |
| Fives Stein | 108 |
6 |
| POSCO | 2142 |
6 |
| Chugai Ro Co., Ltd. | 130 |
5 |
| Danieli & C. Officine Meccaniche S.p.A. | 721 |
5 |
| Drever International S.A. | 14 |
5 |
| SMS Group GmbH | 1200 |
5 |
| ONEJOON GmbH | 35 |
5 |
| IHI Machinery and Furnace Co., Ltd. | 76 |
4 |
| ITT Italia S.r.l. | 166 |
4 |
| Luossavaara-Kiirunavaara AB | 131 |
4 |
| Neturen Co., Ltd. | 198 |
4 |
| Tenova S.p.A. | 158 |
4 |
| Illinois Tool Works Inc. | 11866 |
3 |
| Applied Materials, Inc. | 20406 |
3 |
| Corning Incorporated | 10510 |
3 |
| Other owners | 190 |