- 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: 318
10-year publication summary
|
14
|
21
|
17
|
15
|
21
|
21
|
30
|
25
|
27
|
18
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Illinois Tool Works Inc. | 11862 |
29 |
| Corning Incorporated | 10504 |
9 |
| SMS Group GmbH | 1206 |
9 |
| Fives Stein | 107 |
7 |
| ONEJOON GmbH | 35 |
6 |
| Ebner Industrieofenbau GmbH | 142 |
5 |
| Research Institute of Industrial Science & Technology | 569 |
5 |
| Chugai Ro Co., Ltd. | 131 |
4 |
| Luossavaara-Kiirunavaara AB | 129 |
4 |
| POSCO | 2141 |
4 |
| Technological Resources Pty. Limited | 442 |
4 |
| Tenova S.p.A. | 160 |
4 |
| Riedhammer GmbH | 21 |
4 |
| NGK Insulators, Ltd. | 5200 |
3 |
| Cockerill Maintenance & Ingenierie SA | 79 |
3 |
| Glaston Finland Oy | 19 |
3 |
| ITT Italia S.r.l. | 168 |
3 |
| Otto Junker GmbH | 26 |
3 |
| Sacmi Cooperativa Meccanici Imola Societa' Cooperativa | 589 |
3 |
| Saint-Gobain Isover | 682 |
3 |
| Other owners | 203 |