Combinations of two or more pumps (combinations with priming pumps or booster pumps to counteract vapour-lock F04D9/04)

Full Title

Pumping installations or systems (controlling F04D15/00) > Combinations of two or more pumps (combinations with priming pumps or booster pumps to counteract vapour-lock F04D9/04)

1 direct subcode

Child Classifications

Navigate with arrow keys, Enter to open

F04D 13/14 the pumps being all of centrifugal type

Top Applicants

Top 10 applicants by patent filingsfor class F04, 2013–2023, worldwide · Source: EPO PATSTAT

LG ELECTRONICS KR 3,855
ROBERT BOSCH DE 3,549
GREE ELECTRIC APPLIANCES 2,273
GE (GENERAL ELECTRIC COMPANY) US 2,126
MITSUBISHI ELECTRIC CORPORATION JP 1,881
UNITED TECHNOLOGIES CORPORATION (UTC) US 1,866
SAFRAN AIRCRAFT ENGINES FR 1,499
MITSUBISHI HEAVY INDUSTRIES JP 1,258
TOYOTA INDUSTRIES CORPORATION JP 1,247
ATLAS COPCO AIRPOWER BE 1,168