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Patents > Applicant person : Alfred Julius Boult or None & Grant date: 1800 - 1899

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Tech fields:
None (593) · LTA (202) · propulsion (124) · navigation (124) · balloon (71) · propeller (51) · frame (50) · marine (37) · car (36) · military (23) · parachute (22) · safety (21) · stability (20) · rudder (19) · flapping (19) · electricity (18) · Airplane (18) · kite (15) · projectile (14) · gas (14)
Full specification filed date:
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Supplementary to patent:
None (1013) · Patent CH-1899-18666 (3) · Patent FR-1891-215265 (3) ·   (3) · Patent FR-1897-271948 (2) · Patent DE-1897-91999 (2) · Patent DE-1894-76727 (2) · Patent DE-1893-73799 (2) · Patent FR-1841-9265 (2)
Related to aircraft:
Patent agent:
None (937) · Munn & Co. (10) · Desnos (8) · Armengaud jeune (5) · Haseltine, Lake & Co. (4) · 1 (4) · Dieuaide (4) · Blétry aîné (4) · Thirion (3) · Fayollet (3) · Bardin (3) · Armengaud aîné (3) · Chassevent (3)
National tech categories:
None (750) · FR 6.3 (120) · DE 77 (40) · FR 6.4 (17) · FR 5 (17) · GB 4 propel & steer (15) · USPC 244/3.23 (10) · GB 4 without buoyant (9) · GB 4 aëroplanes (5) · IT 8 (5) · USPC 244/28 (5) · GB 4 with buoyant (4) · USPC 244/30 (4) · USPC 244/51 (4) · USPC 244/64 (4)
IPCs:
None (1024) · IPC B64B1/00 (8) · IPC B64B1/40 (3) · IPC B64B (2) · (IPC1-7) B64B (2) · IPC B64C33/02 (2) · IPC B64C9/00 (2) · IPC B64C9/38 (2) · IPC B64B1/58 (2) · IPC B64C31/00 (2) · IPC B64C31/06 (2)
CPCs:
None (407) · CPC B64C11/006 (125) · CPC B64C11/346 (69) · CPC B64C11/48 (63) · CPC B64C11/36 (44) · CPC B63H1/12 (42) · CPC F05B2260/74 (36) · CPC F03D11/00 (34) · CPC Y02E10/722 (33) · CPC B64C11/343 (33) · CPC B63H1/04 (30) · CPC B64C11/06 (28) · CPC B64C27/33 (21) · CPC B64B1/00 (20) · CPC B64C3/48 (19) · CPC F03D1/025 (17) · CPC B64C11/065 (15) · CPC F03D3/00 (15) · CPC Y02E10/74 (15) · CPC Y02E10/72 (14)
First filing:
Citations from after 1930:
Number of text pages:
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