- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F27B - Furnaces, kilns, ovens, or retorts in general; open sintering or like apparatus
- F27B 9/12 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
Patent holdings for IPC class F27B 9/12
Total number of patents in this class: 133
10-year publication summary
|
3
|
13
|
10
|
12
|
6
|
7
|
8
|
16
|
16
|
4
|
| 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 |
6 |
| IHI Corporation | 3268 |
6 |
| Koyo Thermo Systems Co., Ltd. | 33 |
4 |
| Fives Stein | 96 |
4 |
| IHI Machinery and Furnace Co., Ltd. | 79 |
4 |
| NGK Insulators, Ltd. | 4589 |
3 |
| Andritz Technology and Asset Management GmbH | 89 |
3 |
| King Yuan Dar Metal Enterprise Co., Ltd. | 6 |
3 |
| Ultra High Temperature Processes Ltd | 7 |
3 |
| Murata Manufacturing Co., Ltd. | 22355 |
2 |
| Hyundai Motor Company | 19021 |
2 |
| Air Products and Chemicals, Inc. | 1448 |
2 |
| Cockerill Maintenance & Ingenierie SA | 82 |
2 |
| Commonwealth Scientific and Industrial Research Organisation | 1652 |
2 |
| Danieli & C. Officine Meccaniche S.p.A. | 680 |
2 |
| extrutec GmbH | 8 |
2 |
| Gestamp HardTech AB | 112 |
2 |
| Nippon Piston Ring Co., Ltd. | 131 |
2 |
| Outotec Oyj | 318 |
2 |
| Tamura Corporation | 350 |
2 |
| Other owners | 75 |