F28B STEAM OR VAPOUR CONDENSERS
Introduced: September 1968
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- HEAT EXCHANGE IN GENERAL
- Subclass:
- STEAM OR VAPOUR CONDENSERS
Description
F28B covers apparatus and systems designed to condense steam or other vapors into liquid form through heat exchange processes. The subclass encompasses condenser designs for power generation cycles, refrigeration systems, industrial processes, and related applications where vapor condensation is required. Specific technologies include surface condensers, contact condensers, air-cooled condensers, and specialized designs for vacuum or atmospheric pressure operation. Related heat exchangers for non-condensation applications are classified under F28D and other sibling classes within F28.
Related Keywords
6 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- F28B 1/00 Condensers in which the steam or vapour is separated from the cooling medium by walls, e.g. surface condenser
- F28B 11/00 Controlling arrangements with features specially adapted for condensers
- F28B 3/00 Condensers in which the steam or vapour comes into direct contact with the cooling medium
- F28B 5/00 Condensers employing a combination of the methods covered by groups and; Other condensers
- F28B 7/00 Combinations of two or more condensers, e.g. provision of reserve condenser
- F28B 9/00 Auxiliary systems, arrangements, or devices
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