of positive-displacement type

Full Title

Engines characterised by provision of pumps for charging or scavenging > Engines with pumps other than of reciprocating-piston type (with crankcase pumps F02B33/02) > with rotary pumps (with cell-type pressure exchangers or the like F02B33/42) > of positive-displacement type

1 direct subcode

Child Classifications

Navigate with arrow keys, Enter to open

F02B 33/38 of Roots type

Top Applicants

Top 10 applicants by patent filingsfor 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