IPC Subclass
B64B LIGHTER-THAN-AIR AIRCRAFT
Introduced: September 1968
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- AIRCRAFT; AVIATION; COSMONAUTICS
- Subclass:
- LIGHTER-THAN-AIR AIRCRAFT
Description
B64B covers design, construction, and operational systems of lighter-than-air aircraft, including balloons, airships, and dirigibles. This classification encompasses structural components such as envelopes, gas cells, ballonets, and mooring systems, as well as propulsion, control, and stability mechanisms specific to aerostatic lift principles. It also includes auxiliary equipment for inflation, deflation, and ballast management. Adjacent classifications B64C and B64D address heavier-than-air aircraft and general aircraft equipment respectively.
Related Keywords
lighter-than-air AIRCRAFTAIRSHIPSDIRIGIBLE(S)
1 direct subcode
Child Classifications
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- B64B 1/00 Lighter-than-air aircraft
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