Control of fluid heaters

Introduced: January 2022

Classification Context

Section:: MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Class:: HEATING; RANGES; VENTILATING
Subclass:: FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL

Filing statistics

IPC F24H 15/00 belongs to the parent subclass F24H, which recorded 123,801 patent applications worldwide between 2013 and 2023. Annual filings grew from 7,646 in 2013 to 11,949 in 2023 (+56%), peaking at 14,672 applications in 2020. The most active applicants in class F24 are MIDEA (21,834 applications), GREE ELECTRIC APPLIANCES (21,535 applications) and GUANGDONG MIDEA REFRIGERATION EQUIPMENT COMPANY (20,870 applications).

Source: EPO PATSTAT, worldwide filings

4 direct subcodes

Child Classifications

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F24H 15/1 characterised by the purpose of the control
F24H 15/2 characterised by control inputs
F24H 15/3 characterised by control outputs; characterised by the components to be controlled
F24H 15/4 characterised by the type of controllers

Top Applicants

Top 10 applicants by patent filingsfor class F24, 2013–2023, worldwide · Source: EPO PATSTAT

MIDEA 21,834
GREE ELECTRIC APPLIANCES 21,535
GUANGDONG MIDEA REFRIGERATION EQUIPMENT COMPANY 20,870
QINGDAO HAIER AIR CONDITIONER COMPANY 15,443
HAIER SMART HOME 15,442
QINGDAO HAIER AIR CONDITIONER ELECTRIC COMPANY 10,008
AUX AIR CONDITIONING COMPANY 7,723
NINGBO AUX ELECTRIC COMPANY 7,499
NINGBO FOTILE KITCHENWARE COMPANY 6,712
LG ELECTRONICS KR 6,441