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JOHNSON SAMUEL HENRY

Overview
  • Total Patents
    11
About

JOHNSON SAMUEL HENRY has a total of 11 patent applications. Its first patent ever was published in 1874. It filed its patents most often in United Kingdom, Spain and Austria. Its main competitors in its focus markets machine tools and machines are BLADON JETS LTD, SEIBU ELECTRIC & MACHINERY CO and INST TECH PRECISION ENG.

Patent filings in countries

World map showing JOHNSON SAMUEL HENRYs patent filings in countries
# Country Total Patents
#1 United Kingdom 4
#2 Spain 3
#3 Austria 1
#4 Canada 1
#5 Switzerland 1
#6 United States 1

Patent filings per year

Chart showing JOHNSON SAMUEL HENRYs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Machine tools
#2 Machines

Top inventors

# Name Total Patents
#1 Johnson Samuel Henry 7
#2 Samuel Henry Johnson 1

Latest patents

Publication Filing date Title
GB190720809A Improvements in Closing and Tightening Gear for Filter Presses
GB190206209A Improvements in or relating to Electric Arc Lamps.
CA77085A Electric arc lamp
US691549A Electric-arc lamp.
GB190111135A Improvements in or relating to Electric Arc Lamps.
GB189709582A Improvements in Filter Presses.