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Patents > Office : AH or CA or GB & Applicant type : Hermann Burkardt or INDIV or None & First filing: Yes

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Office: (Click arrow to add another value)
Inventor country:
GB (812) · None (279) · US (239) · DE (166) · FR (159) · IT (29) · CA (22) · AT (21) · CH (21) · RU (15) · BE (12) · IE (11) · AU (11) · NZ (10) · IN (6) · NO (6) · HU (5) · SE (5) · ZA (5)
Applicant type: (Click arrow to add another value)
Applicant is inventor:
Granted:
Supplementary to patent:
None (1655) ·   (8) · Patent FR-1910-435648 (2) · Patent FR-1913-472867 (2) · Patent FR-1909-408057‎ (2) · Patent FR-1912-439277 (2)
Patent agent:
None (954) · Marks & Clerk (85) · Boult, Wade & Tennant (50) · Haseltine, Lake & Co. (47) · None (45) · Brewer & Son (27) · Herbert Haddan & Co. (25) · Abel & Imray (23) · W. P. Thompson & Co. (19) · Wheatley & Mackenzie (19) · G. F. Redfern & Co. (15) · J. S. Withers & Spooner (14) · A. M. & William Clark (14) · Brierley & Howard (13) · Jensen & Son (13) · Hyde & Heide (12) · Mewburn, Ellis & Pryor (12) · Edward Evans & Co. (11) · Browne & Co. (11)
National tech categories:
None (1759) · GB 4 propel & steer (9) · GB 4 propelling (6) · CA 244/24 (5) · GB 4 aërostats (5) · GB 4 with buoyant (4) · GB 4 aëroplanes (4) · FR 6.4 (4) · GB 4 (4) · GB 4 without buoyant (4) · GB 4 steering (3) · GB 4 framework (3) · CA 244/35 (3) · CPC B 64C23/005 (2) · CA 341/80 (2) · CPC B 64C39/00 (2) · GB 4 starting (2) · GB 122 (2)
IPCs:
None (1035) · IPC B64C39/00 (76) · IPC B64C17/00 (68) · IPC B64C1/00 (64) · IPC B64B1/00 (38) · IPC B64C3/00 (38) · IPC B64C35/00 (37) · IPC B64C11/00 (37) · IPC B64C13/00 (35) · IPC B64C3/38 (28) · IPC B64C3/18 (27) · IPC B64C23/00 (25) · IPC B64B1/58 (21) · IPC B64C27/04 (20) · IPC B64C33/02 (17) · IPC B64C3/54 (17) · IPC B64C25/00 (16) · IPC B64C1/06 (13) · IPC B64C11/16 (12) · IPC B64C3/56 (12)
First filing: (Click arrow to add another value)
Cites these patents:
None (1795) · Patent GB-1912-5966 (2) · Patent GB-1909-8118 (2) · Patent GB-1901-346 (2) · Patent GB-1913-5223 (2) · Patent GB-1914-23502 (2) · Patent GB-1912-15735 (2)
Citations from after 1930:

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