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DIFF Class Not Allocatable
B64

AIRCRAFT; AVIATION; COSMONAUTICS

Description

B64 covers aircraft design, construction, and operation, including fixed-wing and rotary-wing aircraft, their structural components, propulsion systems, control mechanisms, and navigational equipment. The class encompasses avionic systems, landing gear, flight control surfaces, and related technologies for both manned and unmanned aircraft. It also includes spacecraft, rockets, and cosmonautical engineering for space exploration and orbital operations. Adjacent classes address specific propulsion systems (e.g., jet engines in F02, F04), general mechanical engineering principles, and ground-based aviation infrastructure handled separately under transportation and construction classifications.

IPC and CPC are identically structured here. All 6 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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Top Applicants

Top Applicants (IPC)

2013–2023, worldwide · Source: EPO PATSTAT

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

Top Applicants (CPC)

2013–2023, worldwide · Source: EPO PATSTAT

  1. BOEING COMPANY US 9,861
  2. AIRBUS OPERATIONS DE 3,766
  3. AIRBUS OPERATIONS FR 3,112
  4. SZ DJI TECHNOLOGY COMPANY CN 2,840
  5. HAMILTON SUNDSTRAND US 2,753
  6. GOODRICH CORPORATION US 2,427
  7. AIRBUS OPERATIONS GB 2,356
  8. BOEING COMPANY 2,057
  9. SAFRAN AIRCRAFT ENGINES FR 1,815
  10. AIRBUS OPERATIONS 1,723