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FLETCHER CO H E

Overview
  • Total Patents
    37
About

FLETCHER CO H E has a total of 37 patent applications. Its first patent ever was published in 1948. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets civil engineering, thermal processes and machines are ELFGEN APEX, LATHAM WINCHESTER E and KORFMANN GMBH MASCHF.

Patent filings in countries

World map showing FLETCHER CO H Es patent filings in countries
# Country Total Patents
#1 United States 20
#2 Canada 10
#3 United Kingdom 3
#4 Germany 2
#5 Australia 1
#6 Norway 1

Patent filings per year

Chart showing FLETCHER CO H Es patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Horton William B 12
#2 Browning James A 6
#3 Fletcher Ralph A 5
#4 Vasselin John F 3
#5 Oliver Joseph R 3
#6 Oliver J 2
#7 Fletcher R 2
#8 Vasselin John Ferdinand 2
#9 Marshall Fitzgerald Ernest 1
#10 Nichols Wesley E 1

Latest patents

Publication Filing date Title
US3728997A Apparatus for cutting stone
DE2141486A1 Stone flame cutter - produces feather shaped flame
AU3224171A Method and apparatus for flame working mineral bodies
US3704914A Method of fluid jet cutting for materials including rock and compositions containing rock aggregates
CA938623A Method and means for applying wedging forces to minerals and other bodies
US3658453A Method and apparatus for flame working mineral bodies
US3677258A Apparatus for continuously gauging and cutting stone in a guillotine type cutting machine
US3655243A Method and apparatus for working mineral bodies and other materials
US3608967A Method and apparatus for flame working mineral bodies
US3572840A Means for applying wedging force to mineral and other bodies
US3558191A Means for applying wedging forces to minerals and other bodies
US3386475A Flame jet burner construction
US3363661A Apparatus for producing a flame jet by combusting counter flow reactants
GB1120325A Method and apparatus for producing flame jet
GB1056628A Method of flame working mineral body
US3255802A Method and apparatus for producing flame jet and controlling temperature and flame stability of same
US3211242A Method of flame working materials
US3180687A Methods and apparatus for wire sawing and wire sizing kerfs
US3101706A Method for stone splitting
US3019004A Method and apparatus for flame cutting mineral bodies and other material