- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F27D - Details or accessories of furnaces, kilns, ovens or retorts, in so far as they are of kinds occurring in more than one kind of furnace
- F27D 1/02 - CrownsRoofs
Patent holdings for IPC class F27D 1/02
Total number of patents in this class: 71
10-year publication summary
|
12
|
2
|
9
|
2
|
5
|
3
|
7
|
1
|
5
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Refractory Intellectual Property GmbH & Co. KG | 539 |
8 |
| Fosbel, Inc. | 60 |
5 |
| Merkle International, Inc. | 15 |
4 |
| Amerifab, Inc. | 50 |
3 |
| Blasch Precision Ceramics, Inc. | 40 |
3 |
| Hyundai Steel Company | 426 |
3 |
| PLANSEE SE | 233 |
3 |
| SunCoke Technology and Development LLC | 237 |
3 |
| Systems Spray Cooled, Inc. | 50 |
3 |
| Allied Mineral Products, Inc. | 63 |
2 |
| Paul Wurth S.A. | 419 |
2 |
| Saint-Gobain Centre de Recherches et d'Etudes Europeen | 491 |
2 |
| Saint-Gobain Isover | 632 |
2 |
| Superior Machine Co. of South Carolina, Inc. | 2 |
2 |
| Fsbl Acquisition, Inc. | 16 |
2 |
| Westran Thermal Processing, LLC | 4 |
2 |
| Daido Steel Co., Ltd. | 269 |
1 |
| Hans Lingl Anlagenbau und Verfahrenstechnik GmbH & Co. KG | 12 |
1 |
| Hatch Ltd. | 213 |
1 |
| Jushi Group Co., Ltd. | 121 |
1 |
| Other owners | 18 |