Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus (if the apparatus aspects are predominant, see the relevant subclasses for such apparatus, e.g. H02K7/18); Power stations or aggregates (incorporating only machines or engines of positive-displacement type F03C; hydraulic engineering aspects E02B; )

Filing statistics

CPC F03B 13/00 belongs to the parent subclass F03B, which recorded 30,710 patent applications worldwide between 2013 and 2023. Annual filings grew from 2,518 in 2013 to 2,784 in 2023 (+11%), peaking at 3,204 applications in 2020. The most active applicants in class F03 are VESTAS (3,718 applications), WOBBEN PROPERTIES (3,602 applications) and SIEMENS GAMESA RENEWABLE ENERGY (3,016 applications).

Source: EPO PATSTAT, worldwide filings

6 direct subcodes

Child Classifications

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F03B 13/02 Adaptations for drilling wells
F03B 13/04 Adaptations for use in dentistry
F03B 13/06 Stations or aggregates of water-storage type, (turbines characterised by having means for functioning alternatively as pumps F03B3/10)
F03B 13/08 Machine or engine aggregates in dams or the like; Conduits therefor
F03B 13/10 Submerged units incorporating electric generators or motors
F03B 13/12 characterised by using wave or tide energy

Top Applicants

Top 10 applicants by patent filingsfor class F03, 2013–2023, worldwide · Source: EPO PATSTAT

VESTAS DK 3,718
WOBBEN PROPERTIES DE 3,602
SIEMENS GAMESA RENEWABLE ENERGY DK 3,016
GE (GENERAL ELECTRIC COMPANY) US 2,594
SIEMENS DE 1,082
BEIJING GOLDWIND SCIENCE & CREATION WINDPOWER EQUIPMENT COMPANY 709
LM WIND POWER DK 671
WOBBEN PROPERTIES 660
SENVION DE 555
BEIJING GOLDWIND SCIENCE & CREATION WINDPOWER EQUIPMENT COMPANY CN 536