- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F27B - Furnaces, kilns, ovens, or retorts in general; open sintering or like apparatus
- F27B 9/30 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity - Details, accessories, or equipment peculiar to furnaces of these types
Patent holdings for IPC class F27B 9/30
Total number of patents in this class: 238
10-year publication summary
16
|
22
|
14
|
21
|
17
|
14
|
20
|
20
|
26
|
3
|
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 |
21 |
Corning Incorporated | 9932 |
8 |
SMS Group GmbH | 1029 |
8 |
Fives Stein | 96 |
6 |
Research Institute of Industrial Science & Technology | 378 |
5 |
Chugai Ro Co., Ltd. | 124 |
4 |
Ebner Industrieofenbau GmbH | 132 |
4 |
Luossavaara-Kiirunavaara AB | 78 |
4 |
POSCO | 2222 |
4 |
Technological Resources Pty. Limited | 444 |
4 |
Cockerill Maintenance & Ingenierie SA | 82 |
3 |
Glaston Finland Oy | 14 |
3 |
ITT Italia S.r.l. | 137 |
3 |
Nippon Steel Corporation | 5649 |
3 |
Otto Junker GmbH | 26 |
3 |
Saint-Gobain Isover | 603 |
3 |
Siti B&t Group S.p.A. | 75 |
3 |
Sumitomo Chemical Company, Limited | 8808 |
2 |
NGK Insulators, Ltd. | 4589 |
2 |
Air Products and Chemicals, Inc. | 1448 |
2 |
Other owners | 143 |