- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F27B - Furnaces, kilns, ovens or retorts in generalopen sintering or like apparatus
- F27B 9/30 - Details, accessories or equipment specially adapted for furnaces of these types
Patent holdings for IPC class F27B 9/30
Total number of patents in this class: 283
10-year publication summary
|
22
|
14
|
21
|
17
|
15
|
21
|
21
|
27
|
23
|
17
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Illinois Tool Works Inc. | 11453 |
25 |
| Corning Incorporated | 10258 |
8 |
| SMS Group GmbH | 1119 |
8 |
| Fives Stein | 105 |
6 |
| Ebner Industrieofenbau GmbH | 142 |
5 |
| Research Institute of Industrial Science & Technology | 502 |
5 |
| NGK Insulators, Ltd. | 4945 |
4 |
| Chugai Ro Co., Ltd. | 128 |
4 |
| Luossavaara-Kiirunavaara AB | 114 |
4 |
| POSCO | 2187 |
4 |
| Technological Resources Pty. Limited | 452 |
4 |
| ONEJOON GmbH | 27 |
4 |
| Cockerill Maintenance & Ingenierie SA | 80 |
3 |
| Glaston Finland Oy | 16 |
3 |
| ITT Italia S.r.l. | 153 |
3 |
| Nippon Steel Corporation | 6220 |
3 |
| Otto Junker GmbH | 27 |
3 |
| Sacmi Cooperativa Meccanici Imola Societa' Cooperativa | 558 |
3 |
| Saint-Gobain Isover | 632 |
3 |
| Siti B&t Group S.p.A. | 78 |
3 |
| Other owners | 178 |