STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR

Introduced: September 1968

Description

F02N covers systems, devices, and methods for initiating combustion in internal combustion engines, including starter motors, ignition systems, cold-start aids, and auxiliary starting mechanisms. This classification encompasses starter designs, starting fuel injection systems, pre-heating devices (glow plugs, block heaters), and mechanical or electrical starting aids that facilitate engine ignition under various operating conditions. Technologies addressing challenges specific to cold-weather starting, high-altitude operation, and rapid engine spin-up fall within this scope. Inventions related to engine starting that do not fit more specific combustion engine classifications are classified here as a catch-all provision.

Additional Content IPC

Starting of free-piston combustion-engines Starting of gas-turbine plants

Of 13 combined children, 10 exist in both systems.

3 codes are CPC-only extensions.

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

3 shared codes have differing titles between IPC and CPC.

Child Classifications

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F02N 1/00 Starting apparatus having hand cranks (with intermediate power storage F02N5/00 - F02N15/00) +1 CPC IPC+CPC Available in IPC and CPC
F02N 11/00 Starting of engines by means of electric motors +2 CPC IPC+CPC Available in IPC and CPC
F02N 13/00 Starting of engines, or driving of starting apparatus by use of explosives, e.g. stored in cartridges IPC+CPC Available in IPC and CPC
F02N 15/00 Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00 +2 CPC IPC+CPC Available in IPC and CPC
F02N 19/00 Starting aids for combustion engines, not otherwise provided for since 2010 +4 CPC IPC+CPC Available in IPC and CPC
F02N 2200/00 Parameters used for control of starting apparatus 2nd only +7 CPC CPC only CPC only
F02N 2250/00 Problems related to engine starting or engine's starting apparatus 2nd only +4 CPC CPC only CPC only
F02N 2300/00 Control related aspects of engine starting 2nd only +3 CPC CPC only CPC only
F02N 3/00 Other muscle-operated starting apparatus (with intermediate power storage F02N5/00 - F02N15/00) IPC+CPC Available in IPC and CPC
F02N 5/00 Starting apparatus having mechanical power storage IPC+CPC Available in IPC and CPC
F02N 7/00 Starting apparatus having fluid-driven auxiliary engines or apparatus IPC+CPC Available in IPC and CPC
F02N 9/00 Starting of engines by supplying auxiliary pressure fluid to their working chambers IPC+CPC Available in IPC and CPC
F02N 99/00 Subject matter not provided for in the other groups of this subclass since 2010 +1 CPC IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class F02,2013–2023, worldwide · Source: EPO PATSTAT

TOYOTA MOTOR CORPORATION 8,687
ROBERT BOSCH DE 8,328
FORD GLOBAL TECHNOLOGIES US 7,423
GE (GENERAL ELECTRIC COMPANY) US 5,732
UNITED TECHNOLOGIES CORPORATION (UTC) US 5,592
HYUNDAI MOTOR COMPANY KR 4,699
TOYOTA MOTOR CORPORATION JP 4,541
DENSO CORPORATION 3,711
WEICHAI POWER COMPANY 3,486
SAFRAN AIRCRAFT ENGINES FR 3,249

Top Applicants (CPC)

Class F02,2013–2023, worldwide · Source: EPO PATSTAT

ROBERT BOSCH DE 8,801
FORD GLOBAL TECHNOLOGIES US 8,171
GE (GENERAL ELECTRIC COMPANY) US 6,957
HYUNDAI MOTOR COMPANY KR 5,390
UNITED TECHNOLOGIES CORPORATION (UTC) US 5,250
TOYOTA MOTOR CORPORATION JP 5,214
TOYOTA MOTOR CORPORATION 4,149
DENSO CORPORATION JP 3,400
KIA MOTORS CORPORATION KR 3,388
SAFRAN AIRCRAFT ENGINES FR 3,332