CPC Subgroup
F27D 17/10 Arrangements for using waste heat
Full Title
Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases > Arrangements for using waste heat
5 direct subcodes
Child Classifications
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- F27D 17/12 using heat storage
- F27D 17/15 using boilers
- F27D 17/17 for preheating fluids, e.g. air or gases
- F27D 17/18 for preheating solid materials
Top Applicants
Top 10 applicants by patent filingsfor class F27, 2013–2023, worldwide · Source: EPO PATSTAT
- POSCO (POHANG IRON AND STEEL COMPANY) KR 930
- JFE STEEL JP 771
- PAUL WURTH LU 518
- OUTOTEC (FINLAND) FI 436
- THYSSEN KRUPP DE 422
- REFRACTORY INTELLECTUAL PROPERTY & COMPANY AT 370
- THYSSENKRUPP INDUSTRIAL SOLUTIONS DE 341
- JFE STEEL 323
- PRIMETALS TECHNOLOGIES AUSTRIA AT 310
- ZHONGYE CHANGTIAN INTERNATIONAL ENGINEERING COMPANY 299