the means being fixed relatively to the drum, (F27B7/04 takes precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: the means being fixed relatively to the drum

CPC: the means being fixed relatively to the drum, (F27B7/04 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Rotary-drum furnaces, i.e. horizontal or slightly inclined > with means for agitating or moving the charge > the means being fixed relatively to the drum

CPC:

Rotary-drum furnaces, i.e. horizontal or slightly inclined > with means for agitating or moving the charge > the means being fixed relatively to the drum, (F27B7/04 takes precedence)

Of 3 combined children, 0 exist in both systems.

3 codes are CPC-only extensions.

Child Classifications

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F27B 7/161 +2 CPC CPC only CPC only
F27B 7/166 CPC only CPC only
F27B 7/167 +1 CPC CPC only CPC only

Top Applicants

Top Applicants (IPC)

Class F27,2013–2023, worldwide · Source: EPO PATSTAT

POSCO (POHANG IRON AND STEEL COMPANY) KR 885
ZHONGYE CHANGTIAN INTERNATIONAL ENGINEERING COMPANY 670
JFE STEEL 621
JFE STEEL JP 492
PAUL WURTH LU 418
OUTOTEC (FINLAND) FI 346
CHINA ENFI ENGINEERING CORPORATION 328
THYSSEN KRUPP DE 310
JINCHUAN GROUP 279
NIPPON STEEL CORPORATION 262

Top Applicants (CPC)

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