Adjustable control surfaces or members, e.g. rudders

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:: PERFORMING OPERATIONS; TRANSPORTING
Class:: AIRCRAFT; AVIATION; COSMONAUTICS
Subclass:: AEROPLANES; HELICOPTERS

Filing statistics

IPC B64C 9/00 belongs to the parent subclass B64C, which recorded 147,606 patent applications worldwide between 2013 and 2023. Annual filings grew from 5,800 in 2013 to 9,217 in 2023 (+59%), peaking at 18,666 applications in 2020. The most active applicants in class B64 are BOEING COMPANY (8,583 applications), AIRBUS OPERATIONS (3,430 applications) and AIRBUS OPERATIONS (2,757 applications).

Source: EPO PATSTAT, worldwide filings

Additional Content

Trimming stabilising surfaces

Related Keywords

AILERONSRUDDERS for aircraft

11 direct subcodes

Child Classifications

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B64C 9/02 Mounting or supporting thereof
B64C 9/04 with compound dependent movements
B64C 9/06 with two or more independent movements
B64C 9/08 bodily displaceable
B64C 9/1 one surface adjusted by movement of another, e.g. servo tabs
B64C 9/12 surfaces of different type or function being simultaneously adjusted
B64C 9/14 forming slots
B64C 9/3 Balancing hinged surfaces, e.g. dynamically
B64C 9/32 Air braking surfaces
B64C 9/34 collapsing or retracting against or within other surfaces or other members
B64C 9/38 Jet flaps

Top Applicants

Top 10 applicants by patent filingsfor class B64, 2013–2023, worldwide · Source: EPO PATSTAT

BOEING COMPANY US 8,583
AIRBUS OPERATIONS DE 3,430
AIRBUS OPERATIONS FR 2,757
HAMILTON SUNDSTRAND US 2,332
SZ DJI TECHNOLOGY COMPANY CN 2,109
AIRBUS OPERATIONS GB 2,084
GOODRICH CORPORATION US 2,053
XI'AN AIRCRAFT DESIGN INSTITUTE OF AVIATION INDUSTRY CORPORATION OF CHINA 1,938
BOEING COMPANY 1,816
NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS 1,589