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M D KNOWLTON CO

Overview
  • Total Patents
    103
About

M D KNOWLTON CO has a total of 103 patent applications. Its first patent ever was published in 1904. It filed its patents most often in United States and United Kingdom. Its main competitors in its focus markets machines, machine tools and textiles and paper are LHOMME SA, CARTON EDGE LTD and LANGSTON SAMUEL M.

Patent filings in countries

World map showing M D KNOWLTON COs patent filings in countries
# Country Total Patents
#1 United States 102
#2 United Kingdom 1

Patent filings per year

Chart showing M D KNOWLTON COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hawkins Edgar M 25
#2 Smith Henry De 20
#3 Feeley Frank G 14
#4 Seymour Charles R 11
#5 Hoch Otto M 9
#6 De Smith Henry 8
#7 Jones John G 4
#8 Pearsall Chester B 3
#9 Adams Thomas W 2
#10 Church Dennis 2

Latest patents

Publication Filing date Title
US3427909A Tube recutter
US3049061A Attachment for automatic quadruple staying machine
US3044372A Machine and method for making helically wound tubing
US2987947A Automatic tube cutting machine
US2416416A Method of and apparatus for winding tubes
US2253275A Laminated tube winding machine
US2242514A Scoring knife
US2160759A Spiral tube winding machine
US1920389A Shearing mechanism
US1959424A Slitting and creasing mechanism
US1837435A Clutch operating mechanism
US1820021A Trip mechanism for sheet cutting machines
US1698251A Tube-cutting machine
US1698261A Tube-cutting machine
US1698264A Tube-cutting machine
US1698260A Tube-forming machine
US1698230A Tube-cutting machine
US1711942A Mandrel for tube-cutting machines
US1698250A Tube-cutting machine
US1867402A Shearing mechanism