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SPIREX CORP

Overview
  • Total Patents
    22
About

SPIREX CORP has a total of 22 patent applications. Its first patent ever was published in 1986. It filed its patents most often in United States, EPO (European Patent Office) and Japan. Its main competitors in its focus markets machines, machine tools and mechanical elements are NIXON NITRATION WORKS, WILLIAM F STAHL and JOMAR CORP.

Patent filings in countries

World map showing SPIREX CORPs patent filings in countries
# Country Total Patents
#1 United States 15
#2 EPO (European Patent Office) 3
#3 Japan 2
#4 Australia 1
#5 Canada 1

Patent filings per year

Chart showing SPIREX CORPs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Machines
#2 Machine tools
#3 Mechanical elements

Top inventors

# Name Total Patents
#1 Colby Paul N 10
#2 Durina Michael F 8
#3 Womer Timothy W 7
#4 Bodnar Shawn P 3
#5 White Harry F 3
#6 Durina Michael Ferrell 2
#7 Smith Bradley P 2
#8 Colby Paul Newton 2
#9 Yang Vue X 2
#10 Joe M Gatty 1

Latest patents

Publication Filing date Title
JP2002192592A Method for laser-cladding for plasticating barrel
US6585001B2 Flow through ring valve for plastic extruding systems
US5823668A Extruder and extrusion screw therefor
US5798077A Screw for plasticating apparatus and method of use
US5816698A Screw and plasticating apparatus and method
US5439633A Plastic extruder having a mixing valve with automatic shut-off
US5318357A Extruder injection apparatus
US5164207A Plastic extruder with automatic shut-off valve
US5096302A Plastic feeding device and method
US5188399A Pipe coupling device and method
US5071256A Extruder injection apparatus and method
US5018917A Apparatus for grooving the barrel of a plasticating machine
US4953279A Method and apparatus for grooving the barrel of a plasticating machine
US4944906A Methods of injection molding and extruding wet hygroscopic ionomers
US4752136A Extruder injection apparatus and method