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Patents > Applicant type : Hermann Burkardt or INDIV & IPCs : IPC B64C35/00 or IPC B64C39/00

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Tech fields:
Airplane (203) · Design (138) · None (95) · frame (90) · propulsion (75) · construction (69) · wings (68) · propellers (63) · stability (60) · aerodynamics (47) · hydroplane (45) · control (40) · lift (38) · whole (36) · Hydroaeroplane (35) · fuselage (33) · landing (30) · Navigation (29) · hybrid (28) · Sustentation (28)
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Supplementary to patent:
None (384) · Patent GB-1911-29012 (6) · Patent FR-1916-502839 (4) · Patent FR-1910-426487 (3) · Patent BE-1912-02-27 Caudron (3) · Patent FR-1912-446818 (3) · Patent FR-1912-455471 (3)
Related to aircraft:
Patent agent:
None (125) · None (28) · Armengaud jeune (27) · Marks & Clerk (16) · J. Bonnet-Thirion (12) · Boult, Wade & Tennant (12) · Weismann et Marx (11) · E. Bletry (10) · J. Germain (10) · Brandon frères (10) · L. Chassevent (8) · Boramé et Julien (7) · Dupont et Elluin (7) · Munn & Co. (7)
National tech categories:
FR 6.4 (317) · None (173) · USPC 244/45R (13) · USPC 244/13 (11) · FR 6.3 (11) · DE 77h.9 (10) · DE 77h.5 (8) · USPC 244/70 (5) · USPC 244/20 (4) · USPC 244/9 (4) · USPC 244/27 (4) · DE 77h.11 (4) · FR 6.2 (3) · USPC 244/19 (3) · DE 77 (3)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C39/00 (281) · CPC B64C2700/6295 (269) · CPC B64C35/00 (108) · CPC B64C39/005 (60) · CPC B64C39/08 (41) · CPC B64C39/008 (25) · CPC B64F2700/6261 (25) · CPC B64C39/003 (18) · CPC B64F2700/6296 (14) · CPC B64C39/006 (12) · CPC B64C35/008 (12) · CPC B64F2700/628 (8) · CPC B64F2700/6265 (7) · CPC B64F2700/6276 (6) · CPC B64F2700/6292 (6) · CPC B64C39/062 (4) · IPC B64C35/00 (4)
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