having supplementary heating

Introduced: September 1968

Title

Titles differ between systems:

IPC: including supplementary heating

CPC: having supplementary heating

Full Title

Full titles differ between systems:

IPC:

Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels > including supplementary heating

CPC:

Incineration of waste (of specific waste F23G7/00); Incinerator constructions; Details, accessories or control therefor > having supplementary heating

Of 4 combined children, 3 exist in both systems.

1 codes are CPC-only extensions.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

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F23G 5/085 CPC only CPC only
F23G 5/10 electric IPC+CPC Available in IPC and CPC
F23G 5/12 using gaseous or liquid fuel (F23G5/14 takes precedence) IPC+CPC Available in IPC and CPC
F23G 5/14 including secondary combustion since 1985 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class F23,2013–2023, worldwide · Source: EPO PATSTAT

GE (GENERAL ELECTRIC COMPANY) US 2,124
XIAN THERMAL POWER RESEARCH INSTITUTE COMPANY 1,369
NINGBO FOTILE KITCHENWARE COMPANY 1,363
SIEMENS DE 997
UNITED TECHNOLOGIES CORPORATION (UTC) US 937
GE (GENERAL ELECTRIC COMPANY) 898
VATTI 815
CHINESE ACADEMY OF SCIENCES 719
RINNAI COMPANY 708
MITSUBISHI HITACHI POWER SYSTEMS 670

Top Applicants (CPC)

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