Arrangements for drive of co-operating members, e.g. for rotary piston and casing

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:: MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Class:: MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
Subclass:: ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES

Filing statistics

IPC F01C 17/00 belongs to the parent subclass F01C, which recorded 7,722 patent applications worldwide between 2013 and 2023. Annual filings declined from 926 in 2013 to 354 in 2023 (-62%), peaking at 960 applications in 2016. The most active applicants in class F01 are GE (GENERAL ELECTRIC COMPANY) (8,496 applications), UNITED TECHNOLOGIES CORPORATION (UTC) (7,291 applications) and SAFRAN AIRCRAFT ENGINES (5,503 applications).

Source: EPO PATSTAT, worldwide filings

3 direct subcodes

Child Classifications

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F01C 17/02 of toothed-gearing type
F01C 17/04 of cam-and-follower type
F01C 17/06 using cranks, universal joints, or similar elements

Top Applicants

Top 10 applicants by patent filingsfor class F01, 2013–2023, worldwide · Source: EPO PATSTAT

GE (GENERAL ELECTRIC COMPANY) US 8,496
UNITED TECHNOLOGIES CORPORATION (UTC) US 7,291
SAFRAN AIRCRAFT ENGINES FR 5,503
TOYOTA MOTOR CORPORATION 4,556
SIEMENS DE 3,992
HYUNDAI MOTOR COMPANY KR 3,929
RAYTHEON TECHNOLOGIES CORPORATION US 3,534
FORD GLOBAL TECHNOLOGIES US 3,407
TOYOTA MOTOR CORPORATION JP 3,042
WEICHAI POWER COMPANY 2,888