Learn more

STERLING EXTRUDER CORP

Overview
  • Total Patents
    49
About

STERLING EXTRUDER CORP has a total of 49 patent applications. Its first patent ever was published in 1960. It filed its patents most often in United Kingdom, United States and Canada. Its main competitors in its focus markets machines and textiles and paper are SUZHOU YUDU MEDICAL DEVICES CO LTD, KUNSHAN WENWEN MACHINERY DESIGN CO LTD and SUZHOU LIZHU MACHINERY CO LTD.

Patent filings in countries

World map showing STERLING EXTRUDER CORPs patent filings in countries
# Country Total Patents
#1 United Kingdom 11
#2 United States 11
#3 Canada 9
#4 France 9
#5 Germany 6
#6 Italy 3

Patent filings per year

Chart showing STERLING EXTRUDER CORPs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Yokana Lucien D 6
#2 Yokana Lucien Davis 5
#3 Paul Limbach Anthony 3
#4 Fields Reuben T 2
#5 Knowles Edward Rolland 2
#6 Limbach Anthony P 2
#7 Stansfield Manfred D 2
#8 Honstrater Richard A 1
#9 Knowles Edward R 1
#10 Fields Reubin T 1

Latest patents

Publication Filing date Title
US4733970A Extruder screw
US4300877A Underwater pelletizer
US4185396A Apparatus for cooling rubber and plastic extrudates
CA1049209A Two-stage single screw extrusion apparatus and process
CA1048720A Extruder having spiral groove in barrel
CA980763A Cooperating male and female rotating mixer
US3685804A Mixing apparatus and method
US3551954A Container forming apparatus
US3470281A Method of forming a flanged container
US3314107A Extruder system
US3327350A Apparatus for parison programming
GB993816A Improvements in pressure control valve for extrusion apparatus
US3254663A Pressure control valve for extrusion apparatus
US3239882A Dispersion head for extruder
GB915796A Improvements in method and apparatus for forming articles by extrusion
US3059276A Extrusion apparatus
CA718337A Dispersion head for extruder
CA800896A Container forming
CA753562A Apparatus for parison programming
CA720034A Pressure control valve for extrusion apparatus