CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION

Description

F23G covers furnaces designed for cremation of human or animal remains, as well as combustion systems for disposing of waste materials or burning low-grade fuels. This subclass includes the structural design, heat management, emission control, and operational features of crematory equipment and waste-to-energy combustion installations. Technologies addressing ash handling, temperature regulation, and pollution mitigation in such facilities fall within this scope, whereas general industrial furnaces for standard fuel combustion are classified elsewhere under F23.

14 direct subcodes

Child Classifications

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F23G 1/00 Furnaces for cremation of human or animal carcasses
F23G 2200/00 Waste incineration
F23G 2201/00 Pretreatment
F23G 2202/00 Combustion
F23G 2203/00 Furnace arrangements
F23G 2204/00 Supplementary heating arrangements
F23G 2205/00 Waste feed arrangements
F23G 2206/00 Waste heat recuperation
F23G 2207/00 Control
F23G 2208/00 Safety aspects
F23G 2209/00 Specific waste
F23G 2900/00 Special features of, or arrangements for incinerators
F23G 5/00 Incineration of waste (of specific waste F23G7/00); Incinerator constructions; Details, accessories or control therefor
F23G 7/00 Incinerators or other apparatus for consuming industrial waste, e.g. chemicals (incinerator closets A47K11/02; oxidation of sludge C02F11/06; burners in general, burner details F23D; incinerating radioactive waste G21F9/00)

Top Applicants

Top 10 applicants by patent filingsfor class F23, 2013–2023, worldwide · Source: EPO PATSTAT

GE (GENERAL ELECTRIC COMPANY) US 2,581
UNITED TECHNOLOGIES CORPORATION (UTC) US 1,180
SIEMENS DE 1,157
GE (GENERAL ELECTRIC COMPANY) 994
XIAN THERMAL POWER RESEARCH INSTITUTE COMPANY 769
MITSUBISHI HEAVY INDUSTRIES JP 701
MITSUBISHI HITACHI POWER SYSTEMS JP 695
RAYTHEON TECHNOLOGIES CORPORATION US 587
NINGBO FOTILE KITCHENWARE COMPANY 543
GENERAL ELECTRIC TECHNOLOGY CH 490