IPC Subgroup
F28B 1/04 employing moving walls
Introduced: September 1968
Last revised: January 2006
Full Title
Condensers in which the steam or vapour is separated from the cooling medium by walls, e.g. surface condenser > using water or other liquid as the cooling medium > employing moving walls
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- HEAT EXCHANGE IN GENERAL
- Subclass:
- STEAM OR VAPOUR CONDENSERS
Top Applicants
Top 10 applicants by patent filingsfor class F28, 2013–2023, worldwide · Source: EPO PATSTAT
- VALEO SYSTEMES THERMIQUES FR 1,902
- MITSUBISHI ELECTRIC CORPORATION JP 1,327
- GREE ELECTRIC APPLIANCES 1,152
- MAHLE INTERNATIONAL DE 999
- ALFA LAVAL SE 960
- HANON SYSTEMS KR 917
- DENSO CORPORATION 905
- DENSO CORPORATION JP 802
- CHINESE ACADEMY OF SCIENCES 787
- XIAN THERMAL POWER RESEARCH INSTITUTE COMPANY 762