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HOLO KROME SCREW CORP

Overview
  • Total Patents
    62
About

HOLO KROME SCREW CORP has a total of 62 patent applications. Its first patent ever was published in 1931. It filed its patents most often in United States, United Kingdom and Canada. Its main competitors in its focus markets machine tools, machines and mechanical elements are L H NEWTON & CO LTD, WILLIAM LEONARD CLOUSE and FRIES ALFRED DE.

Patent filings in countries

World map showing HOLO KROME SCREW CORPs patent filings in countries
# Country Total Patents
#1 United States 22
#2 United Kingdom 18
#3 Canada 12
#4 France 5
#5 Switzerland 4
#6 Belgium 1

Patent filings per year

Chart showing HOLO KROME SCREW CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Purtell William A 16
#2 Klooz Paul W 10
#3 Purtell William Arthur 7
#4 Klooz Paul Wilhelm 3
#5 Paul William Klooz 2
#6 Stifano Vincent A Jr 1
#7 Arthur Purtell William 1
#8 Bates Sidney R 1
#9 Paul Wilhelm Klooz 1
#10 Stifano Jr Vincent Anthony 1

Latest patents

Publication Filing date Title
GB915105A Method of and apparatus for manufacturing threaded members
US2995033A Apparatus for tensioning threaded members
GB853650A Machine tools for trimming the opposite ends of rotating workpieces
US2901583A Forging apparatus and stock warming means therefor
GB806071A Forging process
GB826927A Method of forging
GB826928A Forging apparatus
GB712389A Improvements in self-locking setscrew
US2881452A Apparatus for trimming sequentially the opposite ends of an elongated workpiece
US2631635A Self-locking setscrew
US2543244A Feeding mechanism
GB557763A Improvements in or relating to induction heating apparatus
GB557731A Improvements in or relating to forging apparatus
US2288644A Forging apparatus
US2288643A Apparatus for forging
US2251202A Drive pin
GB542214A Improvements in or relating to socketed screws
GB535074A Improvements in or relating to methods of and apparatus for making socketed screws
US2285461A Socketed screw
US2285460A Screw