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IPC Subgroup
F27B 14/02

with tilting or rocking arrangements

Introduced: September 1968

Last revised: January 2006

Full Title

Crucible or pot furnaces; Tank furnaces > with tilting or rocking arrangements

Classification Context

Section:
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Class:
FURNACES; KILNS, OVENS OR RETORTS
Subclass:
FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS

Filing statistics

IPC F27B 14/02 belongs to the parent subclass F27B, which recorded 72,880 patent applications worldwide between 2013 and 2023. Annual filings grew from 4,008 in 2013 to 10,335 in 2023 (+158%). The most active applicants in class F27 are POSCO (POHANG IRON AND STEEL COMPANY) (885 applications), ZHONGYE CHANGTIAN INTERNATIONAL ENGINEERING COMPANY (670 applications) and JFE STEEL (621 applications).

Source: EPO PATSTAT, worldwide filings

Top Applicants

Top 10 applicants by patent filingsfor class F27, 2013–2023, worldwide · Source: EPO PATSTAT

  1. POSCO (POHANG IRON AND STEEL COMPANY) KR 885
  2. ZHONGYE CHANGTIAN INTERNATIONAL ENGINEERING COMPANY 670
  3. JFE STEEL 621
  4. JFE STEEL JP 492
  5. PAUL WURTH LU 418
  6. OUTOTEC (FINLAND) FI 346
  7. CHINA ENFI ENGINEERING CORPORATION 328
  8. THYSSEN KRUPP DE 310
  9. JINCHUAN GROUP 279
  10. NIPPON STEEL CORPORATION 262