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SLEEPER & HARTLEY

Overview
  • Total Patents
    22
About

SLEEPER & HARTLEY has a total of 22 patent applications. Its first patent ever was published in 1937. It filed its patents most often in United States, France and United Kingdom. Its main competitors in its focus markets machine tools, machines and control are DONGGUAN KAICHUANG PREC MACHINERY CO LTD, ITAYA SEISAKUSHO and SPRING MACHINERY COMPANY.

Patent filings in countries

World map showing SLEEPER & HARTLEYs patent filings in countries
# Country Total Patents
#1 United States 11
#2 France 3
#3 United Kingdom 3
#4 Germany 2
#5 EPO (European Patent Office) 1
#6 Italy 1
#7 Japan 1

Patent filings per year

Chart showing SLEEPER & HARTLEYs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Russell Frank S 10
#2 Simonelli Robert J 4
#3 Hallihan Timothy J 3
#4 Simonelli Robert Joseph 3
#5 Russell Frank Sleeper 3
#6 Philpot Russell 3
#7 Hallihan Timothy 1
#8 Simonelli Robert Josepe 1
#9 Sleeper Russell Frank 1
#10 Furanku Esu Raseru 1

Latest patents

Publication Filing date Title
US5117668A Computer controlled coiling machine
US4934165A Computer controlled coiling machine
US4793171A Multi-slide wire and strip forming machine
US4873854A Computer controlled coiling machine
US4607513A Wire working machine
US4524597A Method of supporting a camshaft in a wire coiling machine
US4528831A Wire coiling machine
US4416135A Wire coiling machine
US4402204A Wire coiling machine
US4372141A Wire coiling machine
US3945239A Metal forming machine with multiple extended beds
FR854652A Improvements to wire winding machines
FR821248A Device for shaping the end of a metal wire