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OTTO KRELL

Overview
  • Total Patents
    13
About

OTTO KRELL has a total of 13 patent applications. Its first patent ever was published in 1926. It filed its patents most often in United Kingdom, United States and Germany. Its main competitors in its focus markets transport, civil engineering and machine tools are THYSSEN HENSCHEL AIRPORT SYSTE, BOERJE FONDEN and COMBI BOX SYSTEM SCANDINAVIA A.

Patent filings in countries

World map showing OTTO KRELLs patent filings in countries
# Country Total Patents
#1 United Kingdom 6
#2 United States 6
#3 Germany 1

Patent filings per year

Chart showing OTTO KRELLs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Otto Krell 6

Latest patents

Publication Filing date Title
US1935271A Equipment for moored airships
US1802025A Landing of airships
GB306137A Improvements in ballasting devices for moored dirigibles
US1778394A Ballasting device for moored dirigibles
US1752911A Hangar for airships
GB311966A Improvements in and relating to mooring towers and mooring devices for airship stations
GB302552A Improvements in hangars of airships
GB300431A Improvements in mooring arrangements for airships
US1848360A Rotatable hangar for airships
GB295170A Improvements in or relating to rotatable hangars for airships
GB306498A Improvements in or relating to rotatable hangars for airships
US1734812A Apparatus for landing airships