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HAMILTON TOOL CO

Overview
  • Total Patents
    128
About

HAMILTON TOOL CO has a total of 128 patent applications. Its first patent ever was published in 1940. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets machines, packaging and shipping and machine tools are DERBY SEALERS INC, MANDAR MARTINE and CATALYST PAPER CORP.

Patent filings in countries

World map showing HAMILTON TOOL COs patent filings in countries
# Country Total Patents
#1 United States 46
#2 Canada 28
#3 United Kingdom 15
#4 Germany 12
#5 France 11
#6 Sweden 8
#7 Spain 4
#8 Switzerland 1
#9 Denmark 1
#10 Italy 1
#11 Japan 1

Patent filings per year

Chart showing HAMILTON TOOL COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Huffman Harold W 38
#2 Huffman H 10
#3 Huffman Harold Walter 9
#4 Morner Robert W 8
#5 Franzmann William H 8
#6 Crampton C Philip 7
#7 Crampton Charles P 5
#8 Grove James E 5
#9 De Lano Walter W 4
#10 Walter Huffman Harold 3

Latest patents

Publication Filing date Title
US4934838A Frame member for supporting multiple bearings with heat barrier slot
US4991503A High pressure intaglio cantilever press
US4848202A Cut off or cross perforator or scoring cylinder with quick blade release
ES8205177A3 Device and method for delivering, in separate staging relation, a plurality of articles in the form of a sheet
US4270743A Forward numbering or underlap sheet delivery
DE2355290A1 Long cylinder with interchangeable cutting blade - which is clamped in position by one wedge and a set of rollers
FR2250311A5 Long cylinder with interchangeable cutting blade - which is clamped in position by one wedge and a set of rollers
US3977621A Differential driven rewinder-unwinder
US3841216A Method of and apparatus for correcting deviations in length and registration in a continuous strip of material
US3761300A Method of disintegrating a glue string attached to a glue bead by means of a heated wire or the like and after said bead is applied to a web
US3715981A Fluid actuator and lock for printing plate cylinders
US3651724A Method and apparatus for producing card sets
US3555767A Boxing method and apparatus
GB1198735A Data Card Punching Device.
ES331955A1 Improvements in application devices of fluid substances to continuous movement tapes. (Machine-translation by Google Translate, not legally binding)
ES331686A3 Improvements in multiple changeable leaf printing systems. (Machine-translation by Google Translate, not legally binding)
US3304102A Data card
GB1076634A Web printing apparatus
GB1076480A A web winding machine
US3391863A Data card punching device