Heating or cooling means entirely surrounded by air draft passage forming casing

Full Title

Heat exchange > Thermosyphonic having vertical air draft passage > Heating or cooling means entirely surrounded by air draft passage forming casing

Of 3 combined children, 0 exist in both systems.

3 codes are CPC-only extensions.

Note: 3 CPC extensions are marked as secondary classification only.

This code exists only in CPC.

Diff view requires codes present in both systems.

Class Y10,2013–2023, worldwide · Source: EPO PATSTAT

BOEING COMPANY US 2,373
FORD GLOBAL TECHNOLOGIES US 2,244
HYUNDAI MOTOR COMPANY KR 2,186
TOYOTA MOTOR CORPORATION JP 1,997
3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 1,837
GE (GENERAL ELECTRIC COMPANY) US 1,794
SAMSUNG ELECTRONICS COMPANY KR 1,705
CORNING US 1,569
TOYOTA MOTOR CORPORATION 1,403
LG CHEM KR 1,364