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WILLIAM CHRISTIE BLACK

Overview
  • Total Patents
    12
About

WILLIAM CHRISTIE BLACK has a total of 12 patent applications. Its first patent ever was published in 1926. It filed its patents most often in United Kingdom and Germany. Its main competitors in its focus markets civil engineering and machines are FAMUR SPOLKA AKCYJNA, HYDRA MINING TOOLS INTERNAT LT and CINCINNATI MINE MACHINERY CO.

Patent filings in countries

World map showing WILLIAM CHRISTIE BLACKs patent filings in countries
# Country Total Patents
#1 United Kingdom 7
#2 Germany 5

Patent filings per year

Chart showing WILLIAM CHRISTIE BLACKs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Civil engineering
#2 Machines

Focus technologies

# Technology
#1 Mining
#2 Unspecified technologies

Latest patents

Publication Filing date Title
GB283067A Improvements in or relating to coal cutting machines and the like
GB280806A Improvements in or relating to coal cutting machines and the like
GB272104A Improved haulage gear for coal cutting machines and the like
GB285592A Improvements in or relating to lifting jacks for coal cutting machines and the like
GB284053A Improvements in or relating to cutter bars for coal cutting machines, also applicable to other purposes
GB264653A Improvements in or relating to mechanism for transmitting rotational movement
GB263310A Improvements in or relating to coal cutting machines and the like