DIFF Main Group
B64D 37/00 Arrangements in connection with fuel supply for power plant (refuelling during flight B64D39/00)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Arrangements in connection with fuel supply for power plant
CPC: Arrangements in connection with fuel supply for power plant (refuelling during flight B64D39/00)
Full Title
Full titles differ between systems:
IPC:
Arrangements in connection with fuel supply for power plant
CPC:
Arrangements in connection with fuel supply for power plant (refuelling during flight B64D39/00)
Of 5 combined children, 4 exist in both systems.
1 codes are CPC-only extensions.
2 shared codes have differing titles between IPC and CPC.
Child Classifications
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- B64D 37/02 Tanks (tanks constructed integrally with aircraft wings B64C3/34) IPC+CPC Available in IPC and CPC
- B64D 37/32 Safety measures not otherwise provided for, e.g. preventing explosive conditions +1 CPC IPC+CPC Available in IPC and CPC
- B64D 37/34 Conditioning fuel, e.g. heating (during filling B64D37/18) IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
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
Top Applicants (CPC)
Class B64,2013–2023, worldwide · Source: EPO PATSTAT
- BOEING COMPANY US 9,861
- AIRBUS OPERATIONS DE 3,766
- AIRBUS OPERATIONS FR 3,112
- SZ DJI TECHNOLOGY COMPANY CN 2,840
- HAMILTON SUNDSTRAND US 2,753
- GOODRICH CORPORATION US 2,427
- AIRBUS OPERATIONS GB 2,356
- BOEING COMPANY 2,057
- SAFRAN AIRCRAFT ENGINES FR 1,815
- AIRBUS OPERATIONS 1,723