- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F27B - Furnaces, kilns, ovens, or retorts in general; open sintering or like apparatus
- F27B 9/02 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-chamber type; Combinations of furnaces
Patent holdings for IPC class F27B 9/02
Total number of patents in this class: 201
10-year publication summary
|
15
|
19
|
13
|
13
|
9
|
9
|
18
|
19
|
16
|
7
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Illinois Tool Works Inc. | 11152 |
8 |
| IHI Corporation | 3268 |
8 |
| Ebner Industrieofenbau GmbH | 132 |
7 |
| IHI Machinery and Furnace Co., Ltd. | 79 |
6 |
| Schwartz GmbH | 58 |
6 |
| Corning Incorporated | 9932 |
4 |
| NGK Insulators, Ltd. | 4589 |
4 |
| Magna International Inc. | 1236 |
4 |
| Research Institute of Industrial Science & Technology | 378 |
4 |
| Aerospace Transmission Technologies GmbH | 13 |
4 |
| Automation Tech, LLC | 33 |
4 |
| Koyo Thermo Systems Co., Ltd. | 33 |
3 |
| Cefla Societa' Cooperativa | 85 |
3 |
| Nu-Iron Technology, LLC | 44 |
3 |
| SMS Group GmbH | 1029 |
3 |
| Siti B&t Group S.p.A. | 75 |
3 |
| NGK Kilntech, Corporation | 14 |
3 |
| Quantumscape Battery, Inc. | 168 |
3 |
| Sumitomo Chemical Company, Limited | 8808 |
2 |
| Consolidated Engineering Company, Inc. | 33 |
2 |
| Other owners | 117 |