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  • 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 1/04 - CasingsLiningsWallsRoofs characterised by the form of the bricks or blocks used

Patent holdings for IPC class F27D 1/04

Total number of patents in this class: 135

10-year publication summary

19
5
7
6
4
5
14
7
6
6
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Fosbel, Inc.
60
15
Refractory Intellectual Property GmbH & Co. KG
541
10
Blasch Precision Ceramics, Inc.
40
8
Paul Wurth S.A.
418
6
Berry Metal Company
52
5
Harbisonwalker International Holdings, Inc.
52
5
Fsbl Acquisition, Inc.
16
4
ArcelorMittal Investigacion y Desarrollo SL
209
3
E.t.i.a. Evaluation Technologique, Ingenierie et Applications
39
3
Saint-Gobain Centre de Recherches et d'Etudes Europeen
493
3
Paul Wurth Deutschland GmbH
26
3
ALCAN International Limited
35
2
Bloom Engineering Company, Inc.
24
2
Fluor Technologies Corporation
375
2
JFE Steel Corporation
6916
2
Krosakiharima Corporation
284
2
Luyang Energy-saving Materials Co., Ltd.
29
2
Macrae Technologies, Inc
14
2
Resco Products, Inc.
138
2
Saint-Gobain Ceramics & Plastics, Inc.
837
2
Other owners 52

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